/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.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:55:24,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:55:25,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:55:25,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:55:25,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:55:25,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:55:25,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:55:25,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:55:25,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:55:25,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:55:25,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:55:25,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:55:25,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:55:25,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:55:25,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:55:25,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:55:25,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:55:25,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:55:25,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:55:25,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:55:25,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:55:25,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:55:25,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:55:25,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:55:25,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:55:25,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:55:25,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:55:25,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:55:25,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:55:25,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:55:25,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:55:25,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:55:25,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:55:25,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:55:25,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:55:25,091 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:55:25,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:55:25,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:55:25,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:55:25,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:55:25,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:55:25,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:55:25,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:55:25,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:55:25,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:55:25,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:55:25,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:55:25,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:55:25,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:55:25,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:55:25,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:55:25,095 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:55:25,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:55:25,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:55:25,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:55:25,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:55:25,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:55:25,305 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:55:25,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-02-24 00:55:25,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f1b144c/0c6e9c18cbb14df0b0d40933bced8fce/FLAGd5433e646 [2022-02-24 00:55:25,808 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:55:25,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-02-24 00:55:25,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f1b144c/0c6e9c18cbb14df0b0d40933bced8fce/FLAGd5433e646 [2022-02-24 00:55:25,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f1b144c/0c6e9c18cbb14df0b0d40933bced8fce [2022-02-24 00:55:25,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:55:25,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:55:25,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:55:25,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:55:25,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:55:25,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:55:25" (1/1) ... [2022-02-24 00:55:25,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58687ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:25, skipping insertion in model container [2022-02-24 00:55:25,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:55:25" (1/1) ... [2022-02-24 00:55:25,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:55:25,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:55:26,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-02-24 00:55:26,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:55:26,226 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:55:26,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-02-24 00:55:26,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:55:26,356 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:55:26,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26 WrapperNode [2022-02-24 00:55:26,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:55:26,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:55:26,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:55:26,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:55:26,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:55:26,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:55:26,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:55:26,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:55:26,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (1/1) ... [2022-02-24 00:55:26,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:55:26,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:55:26,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:55:26,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:55:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:55:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:55:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:55:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:55:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:55:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:55:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:55:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:55:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:55:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:55:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:55:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:55:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:55:26,678 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:55:26,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:55:27,633 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:55:28,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:55:28,033 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:55:28,043 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:55:28,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:55:28,049 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:55:28,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:55:28 BoogieIcfgContainer [2022-02-24 00:55:28,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:55:28,052 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:55:28,052 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:55:28,052 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:55:28,056 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:55:28" (1/1) ... [2022-02-24 00:55:28,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:55:28 BasicIcfg [2022-02-24 00:55:28,109 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:55:28,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:55:28,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:55:28,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:55:28,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:55:25" (1/4) ... [2022-02-24 00:55:28,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e47f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:55:28, skipping insertion in model container [2022-02-24 00:55:28,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:55:26" (2/4) ... [2022-02-24 00:55:28,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e47f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:55:28, skipping insertion in model container [2022-02-24 00:55:28,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:55:28" (3/4) ... [2022-02-24 00:55:28,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e47f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:55:28, skipping insertion in model container [2022-02-24 00:55:28,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:55:28" (4/4) ... [2022-02-24 00:55:28,114 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cqvasr [2022-02-24 00:55:28,119 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:55:28,119 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:55:28,152 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:55:28,156 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:55:28,156 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:55:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 00:55:28,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-24 00:55:28,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:55:28,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:55:28,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:55:28,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:55:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-02-24 00:55:28,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:55:28,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648677385] [2022-02-24 00:55:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:55:28,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:55:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:55:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:55:28,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:55:28,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648677385] [2022-02-24 00:55:28,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648677385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:55:28,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:55:28,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:55:28,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078137363] [2022-02-24 00:55:28,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:55:28,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:55:28,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:55:28,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:55:28,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:55:28,615 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:32,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:55:33,001 INFO L93 Difference]: Finished difference Result 346 states and 584 transitions. [2022-02-24 00:55:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:55:33,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-24 00:55:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:55:33,009 INFO L225 Difference]: With dead ends: 346 [2022-02-24 00:55:33,009 INFO L226 Difference]: Without dead ends: 176 [2022-02-24 00:55:33,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:55:33,014 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 34 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:55:33,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 643 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 00:55:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-02-24 00:55:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2022-02-24 00:55:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.5714285714285714) internal successors, (242), 154 states have internal predecessors, (242), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 246 transitions. [2022-02-24 00:55:33,064 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 246 transitions. Word has length 50 [2022-02-24 00:55:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:55:33,065 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 246 transitions. [2022-02-24 00:55:33,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 246 transitions. [2022-02-24 00:55:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-24 00:55:33,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:55:33,067 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:55:33,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:55:33,067 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:55:33,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:55:33,068 INFO L85 PathProgramCache]: Analyzing trace with hash 630988424, now seen corresponding path program 1 times [2022-02-24 00:55:33,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:55:33,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692656646] [2022-02-24 00:55:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:55:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:55:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:55:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:55:33,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:55:33,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692656646] [2022-02-24 00:55:33,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692656646] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:55:33,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:55:33,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:55:33,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121347146] [2022-02-24 00:55:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:55:33,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:55:33,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:55:33,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:55:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:55:33,261 INFO L87 Difference]: Start difference. First operand 159 states and 246 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) [2022-02-24 00:55:35,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:37,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:39,562 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 [] [2022-02-24 00:55:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:55:40,357 INFO L93 Difference]: Finished difference Result 416 states and 650 transitions. [2022-02-24 00:55:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:55:40,358 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 [2022-02-24 00:55:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:55:40,359 INFO L225 Difference]: With dead ends: 416 [2022-02-24 00:55:40,360 INFO L226 Difference]: Without dead ends: 283 [2022-02-24 00:55:40,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:55:40,361 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 157 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:55:40,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 690 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 646 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-24 00:55:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-02-24 00:55:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 175. [2022-02-24 00:55:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5705882352941176) internal successors, (267), 170 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:40,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 271 transitions. [2022-02-24 00:55:40,398 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 271 transitions. Word has length 63 [2022-02-24 00:55:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:55:40,398 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 271 transitions. [2022-02-24 00:55:40,398 INFO L471 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) [2022-02-24 00:55:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 271 transitions. [2022-02-24 00:55:40,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:55:40,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:55:40,402 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:55:40,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:55:40,402 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:55:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:55:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1467054500, now seen corresponding path program 1 times [2022-02-24 00:55:40,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:55:40,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717672803] [2022-02-24 00:55:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:55:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:55:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:55:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:55:40,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:55:40,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717672803] [2022-02-24 00:55:40,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717672803] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:55:40,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:55:40,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:55:40,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876916459] [2022-02-24 00:55:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:55:40,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:55:40,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:55:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:55:40,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:55:40,548 INFO L87 Difference]: Start difference. First operand 175 states and 271 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) [2022-02-24 00:55:42,459 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 [] [2022-02-24 00:55:43,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:45,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:55:46,179 INFO L93 Difference]: Finished difference Result 340 states and 525 transitions. [2022-02-24 00:55:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:55:46,179 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 [2022-02-24 00:55:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:55:46,180 INFO L225 Difference]: With dead ends: 340 [2022-02-24 00:55:46,180 INFO L226 Difference]: Without dead ends: 191 [2022-02-24 00:55:46,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:55:46,182 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:55:46,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:55:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-02-24 00:55:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-02-24 00:55:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5647058823529412) internal successors, (266), 170 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 270 transitions. [2022-02-24 00:55:46,189 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 270 transitions. Word has length 64 [2022-02-24 00:55:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:55:46,189 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 270 transitions. [2022-02-24 00:55:46,189 INFO L471 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) [2022-02-24 00:55:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 270 transitions. [2022-02-24 00:55:46,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:55:46,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:55:46,192 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:55:46,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:55:46,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:55:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:55:46,193 INFO L85 PathProgramCache]: Analyzing trace with hash 112607684, now seen corresponding path program 1 times [2022-02-24 00:55:46,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:55:46,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876848395] [2022-02-24 00:55:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:55:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:55:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:46,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:55:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:46,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:55:46,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:55:46,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876848395] [2022-02-24 00:55:46,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876848395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:55:46,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:55:46,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:55:46,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847126664] [2022-02-24 00:55:46,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:55:46,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:55:46,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:55:46,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:55:46,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:55:46,318 INFO L87 Difference]: Start difference. First operand 175 states and 270 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) [2022-02-24 00:55:48,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:50,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:52,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:53,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:53,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:55:53,954 INFO L93 Difference]: Finished difference Result 340 states and 524 transitions. [2022-02-24 00:55:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:55:53,955 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 [2022-02-24 00:55:53,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:55:53,956 INFO L225 Difference]: With dead ends: 340 [2022-02-24 00:55:53,956 INFO L226 Difference]: Without dead ends: 191 [2022-02-24 00:55:53,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:55:53,958 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 26 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:55:53,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 00:55:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-02-24 00:55:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-02-24 00:55:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5588235294117647) internal successors, (265), 170 states have internal predecessors, (265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 269 transitions. [2022-02-24 00:55:53,963 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 269 transitions. Word has length 64 [2022-02-24 00:55:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:55:53,964 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 269 transitions. [2022-02-24 00:55:53,964 INFO L471 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) [2022-02-24 00:55:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 269 transitions. [2022-02-24 00:55:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:55:53,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:55:53,964 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:55:53,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:55:53,965 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:55:53,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:55:53,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2041150756, now seen corresponding path program 1 times [2022-02-24 00:55:53,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:55:53,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155004068] [2022-02-24 00:55:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:55:53,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:55:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:55:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:55:54,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:55:54,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155004068] [2022-02-24 00:55:54,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155004068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:55:54,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:55:54,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:55:54,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688135541] [2022-02-24 00:55:54,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:55:54,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:55:54,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:55:54,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:55:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:55:54,055 INFO L87 Difference]: Start difference. First operand 175 states and 269 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) [2022-02-24 00:55:56,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:55:57,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:55:57,139 INFO L93 Difference]: Finished difference Result 447 states and 698 transitions. [2022-02-24 00:55:57,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:55:57,140 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 [2022-02-24 00:55:57,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:55:57,141 INFO L225 Difference]: With dead ends: 447 [2022-02-24 00:55:57,141 INFO L226 Difference]: Without dead ends: 298 [2022-02-24 00:55:57,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:55:57,142 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 155 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:55:57,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 380 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-24 00:55:57,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-02-24 00:55:57,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 193. [2022-02-24 00:55:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5638297872340425) internal successors, (294), 188 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:55:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2022-02-24 00:55:57,148 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 64 [2022-02-24 00:55:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:55:57,148 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2022-02-24 00:55:57,148 INFO L471 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) [2022-02-24 00:55:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2022-02-24 00:55:57,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 00:55:57,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:55:57,149 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:55:57,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:55:57,149 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:55:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:55:57,150 INFO L85 PathProgramCache]: Analyzing trace with hash -944554492, now seen corresponding path program 1 times [2022-02-24 00:55:57,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:55:57,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814142151] [2022-02-24 00:55:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:55:57,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:55:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:55:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:55:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:55:57,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:55:57,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814142151] [2022-02-24 00:55:57,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814142151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:55:57,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:55:57,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:55:57,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482432142] [2022-02-24 00:55:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:55:57,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:55:57,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:55:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:55:57,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:55:57,250 INFO L87 Difference]: Start difference. First operand 193 states and 298 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) [2022-02-24 00:56:01,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:02,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:02,140 INFO L93 Difference]: Finished difference Result 373 states and 579 transitions. [2022-02-24 00:56:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:02,141 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 [2022-02-24 00:56:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:02,142 INFO L225 Difference]: With dead ends: 373 [2022-02-24 00:56:02,142 INFO L226 Difference]: Without dead ends: 206 [2022-02-24 00:56:02,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:02,143 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:02,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:56:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-24 00:56:02,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-02-24 00:56:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5585106382978724) internal successors, (293), 188 states have internal predecessors, (293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 297 transitions. [2022-02-24 00:56:02,148 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 297 transitions. Word has length 64 [2022-02-24 00:56:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:02,148 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 297 transitions. [2022-02-24 00:56:02,148 INFO L471 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) [2022-02-24 00:56:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 297 transitions. [2022-02-24 00:56:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:56:02,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:02,149 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:02,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:56:02,149 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:02,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1808385160, now seen corresponding path program 1 times [2022-02-24 00:56:02,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:02,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093713890] [2022-02-24 00:56:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:02,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:56:02,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:02,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093713890] [2022-02-24 00:56:02,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093713890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:02,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:02,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:02,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441039008] [2022-02-24 00:56:02,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:02,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:02,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:02,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:02,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:02,289 INFO L87 Difference]: Start difference. First operand 193 states and 297 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:04,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:05,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:07,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:08,294 INFO L93 Difference]: Finished difference Result 373 states and 578 transitions. [2022-02-24 00:56:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:08,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-24 00:56:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:08,298 INFO L225 Difference]: With dead ends: 373 [2022-02-24 00:56:08,298 INFO L226 Difference]: Without dead ends: 206 [2022-02-24 00:56:08,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:08,299 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 22 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:08,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:56:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-24 00:56:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-02-24 00:56:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.553191489361702) internal successors, (292), 188 states have internal predecessors, (292), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2022-02-24 00:56:08,303 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 65 [2022-02-24 00:56:08,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:08,303 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2022-02-24 00:56:08,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:08,304 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2022-02-24 00:56:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:56:08,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:08,304 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:08,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:56:08,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:08,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2131702600, now seen corresponding path program 1 times [2022-02-24 00:56:08,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:08,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458078932] [2022-02-24 00:56:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:08,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:56:08,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:08,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458078932] [2022-02-24 00:56:08,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458078932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:08,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:08,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:08,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759735239] [2022-02-24 00:56:08,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:08,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:08,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:08,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:08,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:08,386 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:09,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:11,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:13,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:14,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:14,564 INFO L93 Difference]: Finished difference Result 465 states and 724 transitions. [2022-02-24 00:56:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:14,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 00:56:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:14,566 INFO L225 Difference]: With dead ends: 465 [2022-02-24 00:56:14,566 INFO L226 Difference]: Without dead ends: 298 [2022-02-24 00:56:14,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:14,567 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 158 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:14,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 380 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:56:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-02-24 00:56:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 193. [2022-02-24 00:56:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5372340425531914) internal successors, (289), 188 states have internal predecessors, (289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 293 transitions. [2022-02-24 00:56:14,572 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 293 transitions. Word has length 66 [2022-02-24 00:56:14,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:14,572 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 293 transitions. [2022-02-24 00:56:14,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 293 transitions. [2022-02-24 00:56:14,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:56:14,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:14,575 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:14,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:56:14,575 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:14,575 INFO L85 PathProgramCache]: Analyzing trace with hash 887492427, now seen corresponding path program 1 times [2022-02-24 00:56:14,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:14,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905674221] [2022-02-24 00:56:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:14,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:56:14,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:14,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905674221] [2022-02-24 00:56:14,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905674221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:14,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:14,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:14,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382057313] [2022-02-24 00:56:14,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:14,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:14,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:14,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:14,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:14,683 INFO L87 Difference]: Start difference. First operand 193 states and 293 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:16,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:18,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:18,821 INFO L93 Difference]: Finished difference Result 363 states and 559 transitions. [2022-02-24 00:56:18,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:18,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-24 00:56:18,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:18,822 INFO L225 Difference]: With dead ends: 363 [2022-02-24 00:56:18,822 INFO L226 Difference]: Without dead ends: 196 [2022-02-24 00:56:18,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:18,823 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:18,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 00:56:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-02-24 00:56:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-02-24 00:56:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5319148936170213) internal successors, (288), 188 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 292 transitions. [2022-02-24 00:56:18,827 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 292 transitions. Word has length 67 [2022-02-24 00:56:18,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:18,827 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 292 transitions. [2022-02-24 00:56:18,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 292 transitions. [2022-02-24 00:56:18,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:56:18,828 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:18,828 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:18,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:56:18,828 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:18,829 INFO L85 PathProgramCache]: Analyzing trace with hash 545041914, now seen corresponding path program 1 times [2022-02-24 00:56:18,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:18,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138378033] [2022-02-24 00:56:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:18,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:18,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:18,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:56:18,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:18,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138378033] [2022-02-24 00:56:18,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138378033] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:18,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:18,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:18,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499702953] [2022-02-24 00:56:18,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:18,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:18,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:18,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:18,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:18,911 INFO L87 Difference]: Start difference. First operand 193 states and 292 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:20,324 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 [] [2022-02-24 00:56:22,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:23,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:24,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:24,402 INFO L93 Difference]: Finished difference Result 484 states and 747 transitions. [2022-02-24 00:56:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:24,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-24 00:56:24,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:24,404 INFO L225 Difference]: With dead ends: 484 [2022-02-24 00:56:24,404 INFO L226 Difference]: Without dead ends: 317 [2022-02-24 00:56:24,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:24,405 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:24,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:56:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-02-24 00:56:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 233. [2022-02-24 00:56:24,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.5701754385964912) internal successors, (358), 228 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:24,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 362 transitions. [2022-02-24 00:56:24,410 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 362 transitions. Word has length 67 [2022-02-24 00:56:24,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:24,410 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 362 transitions. [2022-02-24 00:56:24,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:24,411 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 362 transitions. [2022-02-24 00:56:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:56:24,411 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:24,411 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:24,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:56:24,411 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:24,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:24,412 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-02-24 00:56:24,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:24,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99862094] [2022-02-24 00:56:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:24,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:24,522 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:56:24,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:24,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99862094] [2022-02-24 00:56:24,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99862094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:24,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:24,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:24,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435044831] [2022-02-24 00:56:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:24,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:24,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:24,523 INFO L87 Difference]: Start difference. First operand 233 states and 362 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:27,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:28,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:30,227 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 [] [2022-02-24 00:56:30,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:30,685 INFO L93 Difference]: Finished difference Result 545 states and 858 transitions. [2022-02-24 00:56:30,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:30,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-24 00:56:30,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:30,687 INFO L225 Difference]: With dead ends: 545 [2022-02-24 00:56:30,687 INFO L226 Difference]: Without dead ends: 338 [2022-02-24 00:56:30,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:30,688 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 132 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:30,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:56:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-02-24 00:56:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 255. [2022-02-24 00:56:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.604) internal successors, (401), 250 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:30,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 405 transitions. [2022-02-24 00:56:30,694 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 405 transitions. Word has length 68 [2022-02-24 00:56:30,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:30,695 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 405 transitions. [2022-02-24 00:56:30,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:30,695 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 405 transitions. [2022-02-24 00:56:30,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-24 00:56:30,696 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:30,696 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:30,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:56:30,696 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:30,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:30,696 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-02-24 00:56:30,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:30,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706418804] [2022-02-24 00:56:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:30,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-24 00:56:30,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:30,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706418804] [2022-02-24 00:56:30,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706418804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:30,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:30,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:30,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437798419] [2022-02-24 00:56:30,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:30,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:30,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:30,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:30,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:30,794 INFO L87 Difference]: Start difference. First operand 255 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:32,574 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 [] [2022-02-24 00:56:34,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:35,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:35,385 INFO L93 Difference]: Finished difference Result 526 states and 842 transitions. [2022-02-24 00:56:35,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:35,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-02-24 00:56:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:35,386 INFO L225 Difference]: With dead ends: 526 [2022-02-24 00:56:35,386 INFO L226 Difference]: Without dead ends: 297 [2022-02-24 00:56:35,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:35,387 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:35,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 00:56:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-02-24 00:56:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 277. [2022-02-24 00:56:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.6029411764705883) internal successors, (436), 272 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) [2022-02-24 00:56:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 440 transitions. [2022-02-24 00:56:35,393 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 440 transitions. Word has length 96 [2022-02-24 00:56:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:35,393 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 440 transitions. [2022-02-24 00:56:35,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 440 transitions. [2022-02-24 00:56:35,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-24 00:56:35,394 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:35,394 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:35,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:56:35,394 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:35,394 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-02-24 00:56:35,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:35,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018302137] [2022-02-24 00:56:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-24 00:56:35,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:35,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018302137] [2022-02-24 00:56:35,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018302137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:35,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:35,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:35,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093333595] [2022-02-24 00:56:35,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:35,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:35,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:35,482 INFO L87 Difference]: Start difference. First operand 277 states and 440 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:37,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:39,660 INFO L93 Difference]: Finished difference Result 541 states and 866 transitions. [2022-02-24 00:56:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-24 00:56:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:39,661 INFO L225 Difference]: With dead ends: 541 [2022-02-24 00:56:39,661 INFO L226 Difference]: Without dead ends: 290 [2022-02-24 00:56:39,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:39,662 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 21 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:39,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 612 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 00:56:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-24 00:56:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-02-24 00:56:39,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.599264705882353) internal successors, (435), 272 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 439 transitions. [2022-02-24 00:56:39,667 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 439 transitions. Word has length 110 [2022-02-24 00:56:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:39,667 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 439 transitions. [2022-02-24 00:56:39,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 439 transitions. [2022-02-24 00:56:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-24 00:56:39,668 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:39,668 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:56:39,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:56:39,668 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:39,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:39,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-02-24 00:56:39,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:39,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039282266] [2022-02-24 00:56:39,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:39,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:56:39,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:39,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039282266] [2022-02-24 00:56:39,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039282266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:39,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:39,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:39,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249241695] [2022-02-24 00:56:39,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:39,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:39,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:39,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:39,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:39,777 INFO L87 Difference]: Start difference. First operand 277 states and 439 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) [2022-02-24 00:56:41,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:43,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:45,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:47,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:48,017 INFO L93 Difference]: Finished difference Result 546 states and 872 transitions. [2022-02-24 00:56:48,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:56:48,018 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 [2022-02-24 00:56:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:48,019 INFO L225 Difference]: With dead ends: 546 [2022-02-24 00:56:48,019 INFO L226 Difference]: Without dead ends: 295 [2022-02-24 00:56:48,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:48,020 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 35 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:48,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:56:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-02-24 00:56:48,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 277. [2022-02-24 00:56:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5955882352941178) internal successors, (434), 272 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:48,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2022-02-24 00:56:48,025 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 110 [2022-02-24 00:56:48,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:48,025 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2022-02-24 00:56:48,025 INFO L471 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) [2022-02-24 00:56:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2022-02-24 00:56:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-24 00:56:48,026 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:48,026 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:48,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:56:48,027 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-02-24 00:56:48,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:48,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122617773] [2022-02-24 00:56:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:48,236 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-24 00:56:48,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:48,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122617773] [2022-02-24 00:56:48,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122617773] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:48,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:48,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:56:48,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162971250] [2022-02-24 00:56:48,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:48,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:56:48,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:48,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:56:48,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:56:48,237 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:50,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:52,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:53,760 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 [] [2022-02-24 00:56:54,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:56:54,462 INFO L93 Difference]: Finished difference Result 537 states and 858 transitions. [2022-02-24 00:56:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 00:56:54,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-24 00:56:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:56:54,463 INFO L225 Difference]: With dead ends: 537 [2022-02-24 00:56:54,463 INFO L226 Difference]: Without dead ends: 286 [2022-02-24 00:56:54,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:56:54,464 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:56:54,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:56:54,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-02-24 00:56:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-02-24 00:56:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.583629893238434) internal successors, (445), 281 states have internal predecessors, (445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 449 transitions. [2022-02-24 00:56:54,469 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 449 transitions. Word has length 111 [2022-02-24 00:56:54,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:56:54,469 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 449 transitions. [2022-02-24 00:56:54,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:56:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 449 transitions. [2022-02-24 00:56:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-24 00:56:54,470 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:56:54,470 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:56:54,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:56:54,470 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:56:54,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:56:54,471 INFO L85 PathProgramCache]: Analyzing trace with hash -137183387, now seen corresponding path program 1 times [2022-02-24 00:56:54,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:56:54,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940877217] [2022-02-24 00:56:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:56:54,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:56:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:56:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:56:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:56:54,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:56:54,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940877217] [2022-02-24 00:56:54,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940877217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:56:54,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:56:54,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:56:54,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143753240] [2022-02-24 00:56:54,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:56:54,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:56:54,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:56:54,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:56:54,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:56:54,599 INFO L87 Difference]: Start difference. First operand 286 states and 449 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) [2022-02-24 00:56:57,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:56:59,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:00,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:01,076 INFO L93 Difference]: Finished difference Result 573 states and 903 transitions. [2022-02-24 00:57:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:01,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-24 00:57:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:01,078 INFO L225 Difference]: With dead ends: 573 [2022-02-24 00:57:01,078 INFO L226 Difference]: Without dead ends: 313 [2022-02-24 00:57:01,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:01,079 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:01,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 00:57:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-02-24 00:57:01,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-02-24 00:57:01,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5800711743772242) internal successors, (444), 281 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 448 transitions. [2022-02-24 00:57:01,084 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 448 transitions. Word has length 111 [2022-02-24 00:57:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:01,084 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 448 transitions. [2022-02-24 00:57:01,084 INFO L471 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) [2022-02-24 00:57:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 448 transitions. [2022-02-24 00:57:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-24 00:57:01,085 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:01,085 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:01,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:57:01,085 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:01,085 INFO L85 PathProgramCache]: Analyzing trace with hash -488799095, now seen corresponding path program 1 times [2022-02-24 00:57:01,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:01,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803152819] [2022-02-24 00:57:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:01,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:01,171 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:57:01,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:01,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803152819] [2022-02-24 00:57:01,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803152819] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:01,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:01,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:01,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072438891] [2022-02-24 00:57:01,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:01,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:01,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:01,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:01,173 INFO L87 Difference]: Start difference. First operand 286 states and 448 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:03,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:03,242 INFO L93 Difference]: Finished difference Result 573 states and 901 transitions. [2022-02-24 00:57:03,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:03,242 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 [2022-02-24 00:57:03,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:03,243 INFO L225 Difference]: With dead ends: 573 [2022-02-24 00:57:03,243 INFO L226 Difference]: Without dead ends: 313 [2022-02-24 00:57:03,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:03,244 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 37 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:03,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-24 00:57:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-02-24 00:57:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-02-24 00:57:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5765124555160142) internal successors, (443), 281 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 447 transitions. [2022-02-24 00:57:03,249 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 447 transitions. Word has length 112 [2022-02-24 00:57:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:03,249 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 447 transitions. [2022-02-24 00:57:03,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 447 transitions. [2022-02-24 00:57:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-24 00:57:03,250 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:03,250 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:03,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:57:03,250 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:03,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-02-24 00:57:03,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:03,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600279854] [2022-02-24 00:57:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:03,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:03,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:03,336 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:57:03,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:03,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600279854] [2022-02-24 00:57:03,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600279854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:03,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:03,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:03,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471304922] [2022-02-24 00:57:03,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:03,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:03,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:03,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:03,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:03,337 INFO L87 Difference]: Start difference. First operand 286 states and 447 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:05,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:07,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:09,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:09,362 INFO L93 Difference]: Finished difference Result 563 states and 886 transitions. [2022-02-24 00:57:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:09,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-24 00:57:09,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:09,364 INFO L225 Difference]: With dead ends: 563 [2022-02-24 00:57:09,364 INFO L226 Difference]: Without dead ends: 303 [2022-02-24 00:57:09,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:09,365 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 33 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:09,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 547 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:57:09,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-02-24 00:57:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 286. [2022-02-24 00:57:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5729537366548043) internal successors, (442), 281 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 446 transitions. [2022-02-24 00:57:09,370 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 446 transitions. Word has length 114 [2022-02-24 00:57:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:09,370 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 446 transitions. [2022-02-24 00:57:09,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 446 transitions. [2022-02-24 00:57:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-24 00:57:09,371 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:09,371 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:09,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:57:09,371 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:09,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-02-24 00:57:09,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:09,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138496805] [2022-02-24 00:57:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:09,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:09,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:09,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:09,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138496805] [2022-02-24 00:57:09,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138496805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:09,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:09,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:09,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875256690] [2022-02-24 00:57:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:09,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:09,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:09,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:09,473 INFO L87 Difference]: Start difference. First operand 286 states and 446 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) [2022-02-24 00:57:11,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:13,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:15,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:15,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:15,714 INFO L93 Difference]: Finished difference Result 655 states and 1027 transitions. [2022-02-24 00:57:15,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:15,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-24 00:57:15,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:15,716 INFO L225 Difference]: With dead ends: 655 [2022-02-24 00:57:15,716 INFO L226 Difference]: Without dead ends: 395 [2022-02-24 00:57:15,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:15,717 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 97 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:15,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 545 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:57:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-02-24 00:57:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 320. [2022-02-24 00:57:15,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.584126984126984) internal successors, (499), 315 states have internal predecessors, (499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 503 transitions. [2022-02-24 00:57:15,723 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 503 transitions. Word has length 118 [2022-02-24 00:57:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:15,723 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 503 transitions. [2022-02-24 00:57:15,723 INFO L471 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) [2022-02-24 00:57:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 503 transitions. [2022-02-24 00:57:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-24 00:57:15,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:15,724 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:15,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:57:15,724 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1710383652, now seen corresponding path program 1 times [2022-02-24 00:57:15,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:15,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728632984] [2022-02-24 00:57:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:15,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:15,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:15,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728632984] [2022-02-24 00:57:15,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728632984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:15,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:15,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:15,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837632428] [2022-02-24 00:57:15,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:15,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:15,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:15,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:15,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:15,816 INFO L87 Difference]: Start difference. First operand 320 states and 503 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) [2022-02-24 00:57:18,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:20,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:21,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:21,436 INFO L93 Difference]: Finished difference Result 782 states and 1243 transitions. [2022-02-24 00:57:21,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-24 00:57:21,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:21,438 INFO L225 Difference]: With dead ends: 782 [2022-02-24 00:57:21,438 INFO L226 Difference]: Without dead ends: 488 [2022-02-24 00:57:21,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:21,439 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 138 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:21,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:57:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-02-24 00:57:21,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 350. [2022-02-24 00:57:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.6) internal successors, (552), 345 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:21,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 556 transitions. [2022-02-24 00:57:21,445 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 556 transitions. Word has length 118 [2022-02-24 00:57:21,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:21,445 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 556 transitions. [2022-02-24 00:57:21,446 INFO L471 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) [2022-02-24 00:57:21,446 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 556 transitions. [2022-02-24 00:57:21,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-24 00:57:21,446 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:21,447 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:21,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:57:21,447 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:21,447 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-02-24 00:57:21,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:21,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993815950] [2022-02-24 00:57:21,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:21,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-24 00:57:21,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:21,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993815950] [2022-02-24 00:57:21,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993815950] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:21,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:21,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:21,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820791040] [2022-02-24 00:57:21,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:21,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:21,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:21,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:21,534 INFO L87 Difference]: Start difference. First operand 350 states and 556 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:23,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:25,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:27,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:29,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:29,954 INFO L93 Difference]: Finished difference Result 756 states and 1201 transitions. [2022-02-24 00:57:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:29,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-24 00:57:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:29,956 INFO L225 Difference]: With dead ends: 756 [2022-02-24 00:57:29,956 INFO L226 Difference]: Without dead ends: 432 [2022-02-24 00:57:29,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:29,957 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 160 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:29,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 382 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-02-24 00:57:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-02-24 00:57:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 350. [2022-02-24 00:57:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5826086956521739) internal successors, (546), 345 states have internal predecessors, (546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:29,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 550 transitions. [2022-02-24 00:57:29,962 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 550 transitions. Word has length 123 [2022-02-24 00:57:29,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:29,963 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 550 transitions. [2022-02-24 00:57:29,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 550 transitions. [2022-02-24 00:57:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 00:57:29,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:29,964 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:29,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:57:29,964 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:29,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:29,964 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-02-24 00:57:29,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:29,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788947088] [2022-02-24 00:57:29,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:29,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:30,076 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:30,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:30,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788947088] [2022-02-24 00:57:30,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788947088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:30,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:30,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:30,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450105059] [2022-02-24 00:57:30,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:30,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:30,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:30,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:30,077 INFO L87 Difference]: Start difference. First operand 350 states and 550 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) [2022-02-24 00:57:31,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:33,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:36,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:37,040 INFO L93 Difference]: Finished difference Result 796 states and 1257 transitions. [2022-02-24 00:57:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:37,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-24 00:57:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:37,044 INFO L225 Difference]: With dead ends: 796 [2022-02-24 00:57:37,044 INFO L226 Difference]: Without dead ends: 472 [2022-02-24 00:57:37,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:37,045 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:37,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 382 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:57:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-02-24 00:57:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 387. [2022-02-24 00:57:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5916230366492146) internal successors, (608), 382 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 612 transitions. [2022-02-24 00:57:37,064 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 612 transitions. Word has length 124 [2022-02-24 00:57:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:37,064 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 612 transitions. [2022-02-24 00:57:37,064 INFO L471 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) [2022-02-24 00:57:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 612 transitions. [2022-02-24 00:57:37,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 00:57:37,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:37,075 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:37,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:57:37,076 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:37,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:37,076 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-02-24 00:57:37,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:37,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575772976] [2022-02-24 00:57:37,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:37,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:37,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:37,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575772976] [2022-02-24 00:57:37,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575772976] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:37,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:37,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:37,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031367043] [2022-02-24 00:57:37,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:37,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:37,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:37,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:37,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:37,191 INFO L87 Difference]: Start difference. First operand 387 states and 612 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) [2022-02-24 00:57:40,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:41,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:42,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:42,093 INFO L93 Difference]: Finished difference Result 830 states and 1313 transitions. [2022-02-24 00:57:42,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:42,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-24 00:57:42,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:42,095 INFO L225 Difference]: With dead ends: 830 [2022-02-24 00:57:42,095 INFO L226 Difference]: Without dead ends: 469 [2022-02-24 00:57:42,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:42,096 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 132 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:42,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 382 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:57:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-02-24 00:57:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 387. [2022-02-24 00:57:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5863874345549738) internal successors, (606), 382 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 610 transitions. [2022-02-24 00:57:42,102 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 610 transitions. Word has length 125 [2022-02-24 00:57:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:42,102 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 610 transitions. [2022-02-24 00:57:42,102 INFO L471 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) [2022-02-24 00:57:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 610 transitions. [2022-02-24 00:57:42,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:57:42,103 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:42,103 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:42,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:57:42,103 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:42,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:42,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-02-24 00:57:42,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:42,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285643129] [2022-02-24 00:57:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:42,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:42,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:42,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:42,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285643129] [2022-02-24 00:57:42,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285643129] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:42,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:42,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:42,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689483583] [2022-02-24 00:57:42,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:42,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:42,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:42,275 INFO L87 Difference]: Start difference. First operand 387 states and 610 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:43,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:45,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:46,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:47,905 INFO L93 Difference]: Finished difference Result 837 states and 1324 transitions. [2022-02-24 00:57:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:47,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-24 00:57:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:47,907 INFO L225 Difference]: With dead ends: 837 [2022-02-24 00:57:47,907 INFO L226 Difference]: Without dead ends: 476 [2022-02-24 00:57:47,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:47,908 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 71 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:47,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 515 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:57:47,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-02-24 00:57:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 430. [2022-02-24 00:57:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.588235294117647) internal successors, (675), 425 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 679 transitions. [2022-02-24 00:57:47,919 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 679 transitions. Word has length 132 [2022-02-24 00:57:47,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:47,919 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 679 transitions. [2022-02-24 00:57:47,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 679 transitions. [2022-02-24 00:57:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:57:47,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:47,935 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-02-24 00:57:47,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:57:47,935 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:47,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1447401699, now seen corresponding path program 1 times [2022-02-24 00:57:47,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:47,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671230844] [2022-02-24 00:57:47,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:48,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:57:48,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:48,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671230844] [2022-02-24 00:57:48,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671230844] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:48,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:48,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:48,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801272279] [2022-02-24 00:57:48,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:48,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:48,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:48,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:48,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:48,052 INFO L87 Difference]: Start difference. First operand 430 states and 679 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:51,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:52,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:52,301 INFO L93 Difference]: Finished difference Result 916 states and 1447 transitions. [2022-02-24 00:57:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:52,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-24 00:57:52,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:52,303 INFO L225 Difference]: With dead ends: 916 [2022-02-24 00:57:52,303 INFO L226 Difference]: Without dead ends: 512 [2022-02-24 00:57:52,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:52,304 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:52,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 382 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 00:57:52,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-02-24 00:57:52,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 430. [2022-02-24 00:57:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 425 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 673 transitions. [2022-02-24 00:57:52,311 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 673 transitions. Word has length 132 [2022-02-24 00:57:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:52,311 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 673 transitions. [2022-02-24 00:57:52,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:52,311 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 673 transitions. [2022-02-24 00:57:52,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:57:52,312 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:52,312 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:52,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:57:52,312 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:52,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash -973481716, now seen corresponding path program 1 times [2022-02-24 00:57:52,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:52,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620190848] [2022-02-24 00:57:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:52,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:52,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:52,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620190848] [2022-02-24 00:57:52,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620190848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:52,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:52,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:52,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417493628] [2022-02-24 00:57:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:52,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:52,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:52,463 INFO L87 Difference]: Start difference. First operand 430 states and 673 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:55,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:57,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:58,408 INFO L93 Difference]: Finished difference Result 956 states and 1500 transitions. [2022-02-24 00:57:58,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:58,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-24 00:57:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:58,410 INFO L225 Difference]: With dead ends: 956 [2022-02-24 00:57:58,410 INFO L226 Difference]: Without dead ends: 552 [2022-02-24 00:57:58,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:58,412 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 124 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:58,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 383 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 00:57:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-02-24 00:57:58,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 473. [2022-02-24 00:57:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.579059829059829) internal successors, (739), 468 states have internal predecessors, (739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 743 transitions. [2022-02-24 00:57:58,430 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 743 transitions. Word has length 132 [2022-02-24 00:57:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:58,430 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 743 transitions. [2022-02-24 00:57:58,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 743 transitions. [2022-02-24 00:57:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:57:58,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:58,432 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:58,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:57:58,432 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2147089946, now seen corresponding path program 1 times [2022-02-24 00:57:58,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:58,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596223029] [2022-02-24 00:57:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:57:58,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:58,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596223029] [2022-02-24 00:57:58,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596223029] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:58,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:58,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:58,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920237746] [2022-02-24 00:57:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:58,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:58,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:58,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:58,528 INFO L87 Difference]: Start difference. First operand 473 states and 743 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:00,037 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 [] [2022-02-24 00:58:02,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:03,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:04,991 INFO L93 Difference]: Finished difference Result 1002 states and 1575 transitions. [2022-02-24 00:58:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-24 00:58:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:04,993 INFO L225 Difference]: With dead ends: 1002 [2022-02-24 00:58:04,993 INFO L226 Difference]: Without dead ends: 553 [2022-02-24 00:58:04,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:04,994 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 125 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:04,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 406 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:58:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-24 00:58:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 475. [2022-02-24 00:58:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.578723404255319) internal successors, (742), 470 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) [2022-02-24 00:58:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 746 transitions. [2022-02-24 00:58:05,002 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 746 transitions. Word has length 133 [2022-02-24 00:58:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:05,003 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 746 transitions. [2022-02-24 00:58:05,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 746 transitions. [2022-02-24 00:58:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-24 00:58:05,004 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:05,004 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:05,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:58:05,004 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:05,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1361439291, now seen corresponding path program 1 times [2022-02-24 00:58:05,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:05,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335596535] [2022-02-24 00:58:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:05,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:05,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:58:05,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:05,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335596535] [2022-02-24 00:58:05,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335596535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:05,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:05,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:05,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54596805] [2022-02-24 00:58:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:05,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:05,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:05,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:05,126 INFO L87 Difference]: Start difference. First operand 475 states and 746 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) [2022-02-24 00:58:06,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:08,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:10,716 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 [] [2022-02-24 00:58:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:11,157 INFO L93 Difference]: Finished difference Result 968 states and 1524 transitions. [2022-02-24 00:58:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:11,157 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 145 [2022-02-24 00:58:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:11,159 INFO L225 Difference]: With dead ends: 968 [2022-02-24 00:58:11,159 INFO L226 Difference]: Without dead ends: 519 [2022-02-24 00:58:11,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:11,160 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 98 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:11,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 545 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:58:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-02-24 00:58:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 475. [2022-02-24 00:58:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.5765957446808512) internal successors, (741), 470 states have internal predecessors, (741), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:11,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 745 transitions. [2022-02-24 00:58:11,178 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 745 transitions. Word has length 145 [2022-02-24 00:58:11,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:11,178 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 745 transitions. [2022-02-24 00:58:11,178 INFO L471 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) [2022-02-24 00:58:11,178 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 745 transitions. [2022-02-24 00:58:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-24 00:58:11,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:11,184 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:11,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:58:11,184 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:11,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-02-24 00:58:11,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:11,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653610404] [2022-02-24 00:58:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:11,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:58:11,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:11,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653610404] [2022-02-24 00:58:11,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653610404] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:11,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:11,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:11,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685232432] [2022-02-24 00:58:11,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:11,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:11,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:11,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:11,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:11,280 INFO L87 Difference]: Start difference. First operand 475 states and 745 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) [2022-02-24 00:58:13,885 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 [] [2022-02-24 00:58:15,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:16,354 INFO L93 Difference]: Finished difference Result 1044 states and 1640 transitions. [2022-02-24 00:58:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:16,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-24 00:58:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:16,380 INFO L225 Difference]: With dead ends: 1044 [2022-02-24 00:58:16,380 INFO L226 Difference]: Without dead ends: 595 [2022-02-24 00:58:16,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:16,381 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 136 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:16,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:58:16,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-02-24 00:58:16,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 505. [2022-02-24 00:58:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.568) internal successors, (784), 500 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 788 transitions. [2022-02-24 00:58:16,394 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 788 transitions. Word has length 145 [2022-02-24 00:58:16,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:16,394 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 788 transitions. [2022-02-24 00:58:16,394 INFO L471 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) [2022-02-24 00:58:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 788 transitions. [2022-02-24 00:58:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-24 00:58:16,411 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:16,411 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:16,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:58:16,412 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:16,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:16,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2132992452, now seen corresponding path program 1 times [2022-02-24 00:58:16,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:16,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187998246] [2022-02-24 00:58:16,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:16,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:16,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:58:16,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:16,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187998246] [2022-02-24 00:58:16,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187998246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:16,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:16,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:16,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499859271] [2022-02-24 00:58:16,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:16,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:16,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:16,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:16,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:16,512 INFO L87 Difference]: Start difference. First operand 505 states and 788 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) [2022-02-24 00:58:18,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:20,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:22,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:23,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:23,388 INFO L93 Difference]: Finished difference Result 1070 states and 1675 transitions. [2022-02-24 00:58:23,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:23,388 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 145 [2022-02-24 00:58:23,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:23,390 INFO L225 Difference]: With dead ends: 1070 [2022-02-24 00:58:23,390 INFO L226 Difference]: Without dead ends: 591 [2022-02-24 00:58:23,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:23,391 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 99 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:23,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 691 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 607 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:58:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-02-24 00:58:23,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 517. [2022-02-24 00:58:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.564453125) internal successors, (801), 512 states have internal predecessors, (801), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:23,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 805 transitions. [2022-02-24 00:58:23,399 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 805 transitions. Word has length 145 [2022-02-24 00:58:23,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:23,399 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 805 transitions. [2022-02-24 00:58:23,399 INFO L471 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) [2022-02-24 00:58:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 805 transitions. [2022-02-24 00:58:23,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:58:23,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:23,400 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:23,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:58:23,401 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:23,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:23,401 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-02-24 00:58:23,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:23,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474698346] [2022-02-24 00:58:23,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:23,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:58:23,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:23,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474698346] [2022-02-24 00:58:23,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474698346] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:23,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:23,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:23,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916124639] [2022-02-24 00:58:23,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:23,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:23,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:23,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:23,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:23,492 INFO L87 Difference]: Start difference. First operand 517 states and 805 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) [2022-02-24 00:58:25,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:27,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:29,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:31,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:31,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:31,746 INFO L93 Difference]: Finished difference Result 1086 states and 1692 transitions. [2022-02-24 00:58:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:31,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-24 00:58:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:31,748 INFO L225 Difference]: With dead ends: 1086 [2022-02-24 00:58:31,748 INFO L226 Difference]: Without dead ends: 595 [2022-02-24 00:58:31,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:31,749 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 135 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:31,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 492 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:58:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-02-24 00:58:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-02-24 00:58:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.55078125) internal successors, (794), 512 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 798 transitions. [2022-02-24 00:58:31,757 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 798 transitions. Word has length 146 [2022-02-24 00:58:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:31,757 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 798 transitions. [2022-02-24 00:58:31,757 INFO L471 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) [2022-02-24 00:58:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 798 transitions. [2022-02-24 00:58:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 00:58:31,758 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:31,758 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:31,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:58:31,759 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:31,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1632396797, now seen corresponding path program 1 times [2022-02-24 00:58:31,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:31,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336695970] [2022-02-24 00:58:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:31,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:31,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:58:31,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:31,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336695970] [2022-02-24 00:58:31,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336695970] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:31,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:31,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:31,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758009160] [2022-02-24 00:58:31,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:31,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:31,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:31,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:31,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:31,858 INFO L87 Difference]: Start difference. First operand 517 states and 798 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:33,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:34,342 INFO L93 Difference]: Finished difference Result 1086 states and 1678 transitions. [2022-02-24 00:58:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-24 00:58:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:34,344 INFO L225 Difference]: With dead ends: 1086 [2022-02-24 00:58:34,344 INFO L226 Difference]: Without dead ends: 595 [2022-02-24 00:58:34,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:34,345 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 152 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:34,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:58:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-02-24 00:58:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-02-24 00:58:34,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.533203125) internal successors, (785), 512 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 789 transitions. [2022-02-24 00:58:34,353 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 789 transitions. Word has length 146 [2022-02-24 00:58:34,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:34,354 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 789 transitions. [2022-02-24 00:58:34,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 789 transitions. [2022-02-24 00:58:34,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-24 00:58:34,355 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:34,355 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:34,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:58:34,355 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:34,355 INFO L85 PathProgramCache]: Analyzing trace with hash 895862080, now seen corresponding path program 1 times [2022-02-24 00:58:34,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:34,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803047636] [2022-02-24 00:58:34,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:34,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:58:34,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:34,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803047636] [2022-02-24 00:58:34,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803047636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:34,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:34,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:34,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143497493] [2022-02-24 00:58:34,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:34,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:34,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:34,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:34,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:34,495 INFO L87 Difference]: Start difference. First operand 517 states and 789 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) [2022-02-24 00:58:35,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:37,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:38,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:39,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:40,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:40,242 INFO L93 Difference]: Finished difference Result 1040 states and 1595 transitions. [2022-02-24 00:58:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:40,243 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 148 [2022-02-24 00:58:40,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:40,245 INFO L225 Difference]: With dead ends: 1040 [2022-02-24 00:58:40,245 INFO L226 Difference]: Without dead ends: 549 [2022-02-24 00:58:40,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:40,246 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 83 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:40,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 535 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:58:40,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-02-24 00:58:40,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 517. [2022-02-24 00:58:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.53125) internal successors, (784), 512 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 788 transitions. [2022-02-24 00:58:40,258 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 788 transitions. Word has length 148 [2022-02-24 00:58:40,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:40,259 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 788 transitions. [2022-02-24 00:58:40,259 INFO L471 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) [2022-02-24 00:58:40,259 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 788 transitions. [2022-02-24 00:58:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-24 00:58:40,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:40,265 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:40,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:58:40,266 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -302873185, now seen corresponding path program 1 times [2022-02-24 00:58:40,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:40,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232847035] [2022-02-24 00:58:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:40,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:40,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 00:58:40,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:40,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232847035] [2022-02-24 00:58:40,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232847035] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:40,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:40,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:40,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309070707] [2022-02-24 00:58:40,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:40,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:40,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:40,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:40,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:40,379 INFO L87 Difference]: Start difference. First operand 517 states and 788 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) [2022-02-24 00:58:42,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:42,867 INFO L93 Difference]: Finished difference Result 1086 states and 1658 transitions. [2022-02-24 00:58:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:42,867 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 148 [2022-02-24 00:58:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:42,869 INFO L225 Difference]: With dead ends: 1086 [2022-02-24 00:58:42,869 INFO L226 Difference]: Without dead ends: 595 [2022-02-24 00:58:42,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:42,870 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 149 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:42,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:58:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-02-24 00:58:42,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-02-24 00:58:42,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.515625) internal successors, (776), 512 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 780 transitions. [2022-02-24 00:58:42,878 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 780 transitions. Word has length 148 [2022-02-24 00:58:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:42,878 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 780 transitions. [2022-02-24 00:58:42,878 INFO L471 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) [2022-02-24 00:58:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 780 transitions. [2022-02-24 00:58:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 00:58:42,879 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:42,879 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:42,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:58:42,879 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:42,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1357257888, now seen corresponding path program 1 times [2022-02-24 00:58:42,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:42,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832730228] [2022-02-24 00:58:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:42,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:42,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:58:42,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:42,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832730228] [2022-02-24 00:58:42,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832730228] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:42,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:42,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:42,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081619641] [2022-02-24 00:58:42,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:42,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:42,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:42,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:42,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:42,989 INFO L87 Difference]: Start difference. First operand 517 states and 780 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) [2022-02-24 00:58:45,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:47,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:49,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:50,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:50,437 INFO L93 Difference]: Finished difference Result 1128 states and 1706 transitions. [2022-02-24 00:58:50,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:50,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-24 00:58:50,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:50,439 INFO L225 Difference]: With dead ends: 1128 [2022-02-24 00:58:50,439 INFO L226 Difference]: Without dead ends: 637 [2022-02-24 00:58:50,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:50,441 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 135 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:50,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 493 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-02-24 00:58:50,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-02-24 00:58:50,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 545. [2022-02-24 00:58:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.5037037037037038) internal successors, (812), 540 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 816 transitions. [2022-02-24 00:58:50,450 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 816 transitions. Word has length 149 [2022-02-24 00:58:50,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:50,450 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 816 transitions. [2022-02-24 00:58:50,450 INFO L471 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) [2022-02-24 00:58:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 816 transitions. [2022-02-24 00:58:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-24 00:58:50,451 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:50,451 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:50,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:58:50,452 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:50,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1644895615, now seen corresponding path program 1 times [2022-02-24 00:58:50,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:50,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695051726] [2022-02-24 00:58:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:58:50,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:50,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695051726] [2022-02-24 00:58:50,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695051726] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:50,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:50,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:50,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668204878] [2022-02-24 00:58:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:50,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:50,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:50,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:50,559 INFO L87 Difference]: Start difference. First operand 545 states and 816 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) [2022-02-24 00:58:53,380 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 [] [2022-02-24 00:58:54,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:54,357 INFO L93 Difference]: Finished difference Result 1142 states and 1714 transitions. [2022-02-24 00:58:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:54,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-02-24 00:58:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:54,359 INFO L225 Difference]: With dead ends: 1142 [2022-02-24 00:58:54,359 INFO L226 Difference]: Without dead ends: 623 [2022-02-24 00:58:54,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:54,360 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:54,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-02-24 00:58:54,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-02-24 00:58:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 545. [2022-02-24 00:58:54,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.488888888888889) internal successors, (804), 540 states have internal predecessors, (804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:54,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 808 transitions. [2022-02-24 00:58:54,367 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 808 transitions. Word has length 150 [2022-02-24 00:58:54,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:54,367 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 808 transitions. [2022-02-24 00:58:54,367 INFO L471 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) [2022-02-24 00:58:54,368 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 808 transitions. [2022-02-24 00:58:54,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-24 00:58:54,368 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:54,369 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:54,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:58:54,369 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:54,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1425004022, now seen corresponding path program 1 times [2022-02-24 00:58:54,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:54,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502483211] [2022-02-24 00:58:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:54,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 00:58:54,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:54,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502483211] [2022-02-24 00:58:54,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502483211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:54,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:54,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:54,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628959865] [2022-02-24 00:58:54,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:54,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:54,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:54,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:54,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:54,456 INFO L87 Difference]: Start difference. First operand 545 states and 808 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:57,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:58,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:00,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:01,129 INFO L93 Difference]: Finished difference Result 1184 states and 1760 transitions. [2022-02-24 00:59:01,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:01,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-24 00:59:01,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:01,132 INFO L225 Difference]: With dead ends: 1184 [2022-02-24 00:59:01,132 INFO L226 Difference]: Without dead ends: 665 [2022-02-24 00:59:01,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:01,133 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 127 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:01,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 384 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:59:01,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-02-24 00:59:01,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 580. [2022-02-24 00:59:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4817391304347827) internal successors, (852), 575 states have internal predecessors, (852), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 856 transitions. [2022-02-24 00:59:01,141 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 856 transitions. Word has length 157 [2022-02-24 00:59:01,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:01,141 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 856 transitions. [2022-02-24 00:59:01,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:01,141 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 856 transitions. [2022-02-24 00:59:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-24 00:59:01,142 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:01,142 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:01,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:59:01,143 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:01,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:01,143 INFO L85 PathProgramCache]: Analyzing trace with hash -469188179, now seen corresponding path program 1 times [2022-02-24 00:59:01,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:01,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172424436] [2022-02-24 00:59:01,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:01,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 00:59:01,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:01,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172424436] [2022-02-24 00:59:01,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172424436] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:01,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:01,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:01,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135019855] [2022-02-24 00:59:01,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:01,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:01,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:01,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:01,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:01,243 INFO L87 Difference]: Start difference. First operand 580 states and 856 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:02,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:05,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:07,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:07,430 INFO L93 Difference]: Finished difference Result 1155 states and 1712 transitions. [2022-02-24 00:59:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:07,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-24 00:59:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:07,432 INFO L225 Difference]: With dead ends: 1155 [2022-02-24 00:59:07,432 INFO L226 Difference]: Without dead ends: 601 [2022-02-24 00:59:07,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:07,433 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 46 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:07,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 557 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:59:07,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-02-24 00:59:07,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 580. [2022-02-24 00:59:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.48) internal successors, (851), 575 states have internal predecessors, (851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 855 transitions. [2022-02-24 00:59:07,441 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 855 transitions. Word has length 158 [2022-02-24 00:59:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:07,441 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 855 transitions. [2022-02-24 00:59:07,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 855 transitions. [2022-02-24 00:59:07,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-24 00:59:07,442 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:07,443 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:07,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:59:07,443 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:07,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:07,443 INFO L85 PathProgramCache]: Analyzing trace with hash 612620108, now seen corresponding path program 1 times [2022-02-24 00:59:07,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:07,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34197439] [2022-02-24 00:59:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:07,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 00:59:07,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:07,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34197439] [2022-02-24 00:59:07,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34197439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:07,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:07,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:07,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159030169] [2022-02-24 00:59:07,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:07,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:07,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:07,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:07,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:07,531 INFO L87 Difference]: Start difference. First operand 580 states and 855 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:09,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:10,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:12,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:13,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:13,422 INFO L93 Difference]: Finished difference Result 1212 states and 1792 transitions. [2022-02-24 00:59:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:13,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-24 00:59:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:13,424 INFO L225 Difference]: With dead ends: 1212 [2022-02-24 00:59:13,424 INFO L226 Difference]: Without dead ends: 658 [2022-02-24 00:59:13,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:13,425 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 126 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:13,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 00:59:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-02-24 00:59:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 580. [2022-02-24 00:59:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4730434782608695) internal successors, (847), 575 states have internal predecessors, (847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 851 transitions. [2022-02-24 00:59:13,434 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 851 transitions. Word has length 158 [2022-02-24 00:59:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:13,434 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 851 transitions. [2022-02-24 00:59:13,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 851 transitions. [2022-02-24 00:59:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-24 00:59:13,436 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:13,436 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:13,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:59:13,436 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:13,436 INFO L85 PathProgramCache]: Analyzing trace with hash -689331971, now seen corresponding path program 1 times [2022-02-24 00:59:13,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:13,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544269954] [2022-02-24 00:59:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:13,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-02-24 00:59:13,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:13,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544269954] [2022-02-24 00:59:13,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544269954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:13,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:13,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:13,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146720652] [2022-02-24 00:59:13,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:13,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:13,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:13,557 INFO L87 Difference]: Start difference. First operand 580 states and 851 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) [2022-02-24 00:59:15,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:17,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:19,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:21,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:21,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:21,785 INFO L93 Difference]: Finished difference Result 1155 states and 1702 transitions. [2022-02-24 00:59:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:21,786 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 167 [2022-02-24 00:59:21,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:21,787 INFO L225 Difference]: With dead ends: 1155 [2022-02-24 00:59:21,788 INFO L226 Difference]: Without dead ends: 601 [2022-02-24 00:59:21,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:21,789 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:21,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 571 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:59:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-02-24 00:59:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 580. [2022-02-24 00:59:21,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.471304347826087) internal successors, (846), 575 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 850 transitions. [2022-02-24 00:59:21,797 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 850 transitions. Word has length 167 [2022-02-24 00:59:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:21,797 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 850 transitions. [2022-02-24 00:59:21,798 INFO L471 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) [2022-02-24 00:59:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 850 transitions. [2022-02-24 00:59:21,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-24 00:59:21,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:21,799 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:21,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 00:59:21,800 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1330418114, now seen corresponding path program 1 times [2022-02-24 00:59:21,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:21,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388471832] [2022-02-24 00:59:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:21,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:21,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-24 00:59:21,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:21,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388471832] [2022-02-24 00:59:21,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388471832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:21,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:21,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:59:21,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361273436] [2022-02-24 00:59:21,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:21,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:59:21,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:21,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:59:21,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:21,910 INFO L87 Difference]: Start difference. First operand 580 states and 850 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:23,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:25,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:27,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:27,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:27,954 INFO L93 Difference]: Finished difference Result 1134 states and 1670 transitions. [2022-02-24 00:59:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 00:59:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-02-24 00:59:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:27,956 INFO L225 Difference]: With dead ends: 1134 [2022-02-24 00:59:27,956 INFO L226 Difference]: Without dead ends: 580 [2022-02-24 00:59:27,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:59:27,957 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 162 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:27,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:59:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-24 00:59:27,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-02-24 00:59:27,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4695652173913043) internal successors, (845), 575 states have internal predecessors, (845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 849 transitions. [2022-02-24 00:59:27,964 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 849 transitions. Word has length 167 [2022-02-24 00:59:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:27,964 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 849 transitions. [2022-02-24 00:59:27,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 849 transitions. [2022-02-24 00:59:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 00:59:27,966 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:27,966 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:27,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:59:27,966 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:27,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1418766410, now seen corresponding path program 1 times [2022-02-24 00:59:27,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:27,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713898689] [2022-02-24 00:59:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:27,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 00:59:28,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:28,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713898689] [2022-02-24 00:59:28,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713898689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:28,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:28,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:28,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600859969] [2022-02-24 00:59:28,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:28,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:28,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:28,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:28,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:28,058 INFO L87 Difference]: Start difference. First operand 580 states and 849 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:29,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:31,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:33,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:33,369 INFO L93 Difference]: Finished difference Result 1685 states and 2485 transitions. [2022-02-24 00:59:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:33,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 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 173 [2022-02-24 00:59:33,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:33,373 INFO L225 Difference]: With dead ends: 1685 [2022-02-24 00:59:33,373 INFO L226 Difference]: Without dead ends: 1131 [2022-02-24 00:59:33,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:33,374 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:33,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 457 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 329 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:59:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-02-24 00:59:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2022-02-24 00:59:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1126 states have (on average 1.4618117229129663) internal successors, (1646), 1126 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1650 transitions. [2022-02-24 00:59:33,389 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1650 transitions. Word has length 173 [2022-02-24 00:59:33,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:33,389 INFO L470 AbstractCegarLoop]: Abstraction has 1131 states and 1650 transitions. [2022-02-24 00:59:33,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:33,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1650 transitions. [2022-02-24 00:59:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 00:59:33,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:33,391 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:33,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:59:33,391 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:33,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:33,392 INFO L85 PathProgramCache]: Analyzing trace with hash 511464439, now seen corresponding path program 1 times [2022-02-24 00:59:33,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:33,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059796938] [2022-02-24 00:59:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:33,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-24 00:59:33,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:33,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059796938] [2022-02-24 00:59:33,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059796938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:33,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:33,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:33,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102436827] [2022-02-24 00:59:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:33,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:33,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:33,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:33,484 INFO L87 Difference]: Start difference. First operand 1131 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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) [2022-02-24 00:59:37,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:37,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:37,502 INFO L93 Difference]: Finished difference Result 2263 states and 3307 transitions. [2022-02-24 00:59:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:37,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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 173 [2022-02-24 00:59:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:37,507 INFO L225 Difference]: With dead ends: 2263 [2022-02-24 00:59:37,507 INFO L226 Difference]: Without dead ends: 1158 [2022-02-24 00:59:37,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:37,509 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:37,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 00:59:37,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-02-24 00:59:37,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2022-02-24 00:59:37,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1153 states have (on average 1.4579358196010408) internal successors, (1681), 1153 states have internal predecessors, (1681), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1685 transitions. [2022-02-24 00:59:37,526 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1685 transitions. Word has length 173 [2022-02-24 00:59:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:37,528 INFO L470 AbstractCegarLoop]: Abstraction has 1158 states and 1685 transitions. [2022-02-24 00:59:37,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 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) [2022-02-24 00:59:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1685 transitions. [2022-02-24 00:59:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 00:59:37,530 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:37,530 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:37,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:59:37,530 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1477027256, now seen corresponding path program 1 times [2022-02-24 00:59:37,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:37,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618704700] [2022-02-24 00:59:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-24 00:59:37,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:37,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618704700] [2022-02-24 00:59:37,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618704700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:37,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:37,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:37,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589914882] [2022-02-24 00:59:37,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:37,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:37,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:37,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:37,617 INFO L87 Difference]: Start difference. First operand 1158 states and 1685 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:40,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:41,053 INFO L93 Difference]: Finished difference Result 2292 states and 3343 transitions. [2022-02-24 00:59:41,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:41,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-24 00:59:41,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:41,057 INFO L225 Difference]: With dead ends: 2292 [2022-02-24 00:59:41,057 INFO L226 Difference]: Without dead ends: 1160 [2022-02-24 00:59:41,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:41,060 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:41,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 259 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-02-24 00:59:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-02-24 00:59:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2022-02-24 00:59:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1155 states have (on average 1.457142857142857) internal successors, (1683), 1155 states have internal predecessors, (1683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1687 transitions. [2022-02-24 00:59:41,076 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1687 transitions. Word has length 173 [2022-02-24 00:59:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:41,076 INFO L470 AbstractCegarLoop]: Abstraction has 1160 states and 1687 transitions. [2022-02-24 00:59:41,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:41,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1687 transitions. [2022-02-24 00:59:41,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-24 00:59:41,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:41,078 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:41,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:59:41,079 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:41,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:41,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1780826272, now seen corresponding path program 1 times [2022-02-24 00:59:41,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:41,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623054602] [2022-02-24 00:59:41,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:41,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:59:41,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:41,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623054602] [2022-02-24 00:59:41,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623054602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:41,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:41,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:41,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449031343] [2022-02-24 00:59:41,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:41,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:41,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:41,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:41,195 INFO L87 Difference]: Start difference. First operand 1160 states and 1687 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 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) [2022-02-24 00:59:44,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:45,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:45,178 INFO L93 Difference]: Finished difference Result 2843 states and 4159 transitions. [2022-02-24 00:59:45,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:45,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 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 197 [2022-02-24 00:59:45,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:45,183 INFO L225 Difference]: With dead ends: 2843 [2022-02-24 00:59:45,183 INFO L226 Difference]: Without dead ends: 1711 [2022-02-24 00:59:45,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:45,185 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:45,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 00:59:45,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2022-02-24 00:59:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2022-02-24 00:59:45,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1706 states have (on average 1.4560375146541618) internal successors, (2484), 1706 states have internal predecessors, (2484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2488 transitions. [2022-02-24 00:59:45,209 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2488 transitions. Word has length 197 [2022-02-24 00:59:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:45,210 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2488 transitions. [2022-02-24 00:59:45,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 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) [2022-02-24 00:59:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2488 transitions. [2022-02-24 00:59:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-24 00:59:45,212 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:45,212 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:45,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 00:59:45,213 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-02-24 00:59:45,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:45,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359576527] [2022-02-24 00:59:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:45,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-02-24 00:59:45,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:45,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359576527] [2022-02-24 00:59:45,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359576527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:45,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:45,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:45,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149812272] [2022-02-24 00:59:45,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:45,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:45,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:45,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:45,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:45,355 INFO L87 Difference]: Start difference. First operand 1711 states and 2488 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:46,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:48,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:49,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:49,758 INFO L93 Difference]: Finished difference Result 3945 states and 5761 transitions. [2022-02-24 00:59:49,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:49,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 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 202 [2022-02-24 00:59:49,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:49,764 INFO L225 Difference]: With dead ends: 3945 [2022-02-24 00:59:49,764 INFO L226 Difference]: Without dead ends: 2262 [2022-02-24 00:59:49,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:49,767 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:49,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 00:59:49,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-02-24 00:59:49,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-02-24 00:59:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 2257 states have (on average 1.4554718653079308) internal successors, (3285), 2257 states have internal predecessors, (3285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3289 transitions. [2022-02-24 00:59:49,797 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3289 transitions. Word has length 202 [2022-02-24 00:59:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:49,797 INFO L470 AbstractCegarLoop]: Abstraction has 2262 states and 3289 transitions. [2022-02-24 00:59:49,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3289 transitions. [2022-02-24 00:59:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-24 00:59:49,801 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:49,801 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:49,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 00:59:49,801 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:49,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:49,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-02-24 00:59:49,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:49,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319389363] [2022-02-24 00:59:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:49,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:49,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-24 00:59:49,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:49,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319389363] [2022-02-24 00:59:49,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319389363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:49,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:49,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:49,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753133805] [2022-02-24 00:59:49,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:49,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:49,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:49,909 INFO L87 Difference]: Start difference. First operand 2262 states and 3289 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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) [2022-02-24 00:59:51,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:52,278 INFO L93 Difference]: Finished difference Result 5048 states and 7364 transitions. [2022-02-24 00:59:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 202 [2022-02-24 00:59:52,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:52,285 INFO L225 Difference]: With dead ends: 5048 [2022-02-24 00:59:52,285 INFO L226 Difference]: Without dead ends: 2814 [2022-02-24 00:59:52,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:52,288 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:52,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:59:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-02-24 00:59:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2022-02-24 00:59:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2809 states have (on average 1.4571021715913137) internal successors, (4093), 2809 states have internal predecessors, (4093), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4097 transitions. [2022-02-24 00:59:52,329 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4097 transitions. Word has length 202 [2022-02-24 00:59:52,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:52,330 INFO L470 AbstractCegarLoop]: Abstraction has 2814 states and 4097 transitions. [2022-02-24 00:59:52,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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) [2022-02-24 00:59:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4097 transitions. [2022-02-24 00:59:52,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-02-24 00:59:52,333 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:52,333 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:52,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 00:59:52,334 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:52,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:52,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-02-24 00:59:52,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:52,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287391020] [2022-02-24 00:59:52,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:52,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:52,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-02-24 00:59:52,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:52,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287391020] [2022-02-24 00:59:52,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287391020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:52,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:52,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:52,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777827568] [2022-02-24 00:59:52,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:52,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:52,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:52,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:52,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:52,479 INFO L87 Difference]: Start difference. First operand 2814 states and 4097 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:55,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:56,081 INFO L93 Difference]: Finished difference Result 6146 states and 8971 transitions. [2022-02-24 00:59:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:59:56,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-02-24 00:59:56,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:56,086 INFO L225 Difference]: With dead ends: 6146 [2022-02-24 00:59:56,086 INFO L226 Difference]: Without dead ends: 3360 [2022-02-24 00:59:56,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:56,093 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:56,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-02-24 00:59:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-02-24 00:59:56,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3360. [2022-02-24 00:59:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3355 states have (on average 1.456929955290611) internal successors, (4888), 3355 states have internal predecessors, (4888), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:56,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4892 transitions. [2022-02-24 00:59:56,147 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4892 transitions. Word has length 275 [2022-02-24 00:59:56,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:56,148 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 4892 transitions. [2022-02-24 00:59:56,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:56,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4892 transitions. [2022-02-24 00:59:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-02-24 00:59:56,152 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:56,152 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:56,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 00:59:56,153 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:56,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-02-24 00:59:56,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:56,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177853058] [2022-02-24 00:59:56,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:56,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-24 00:59:56,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:56,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177853058] [2022-02-24 00:59:56,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177853058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:56,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:56,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:59:56,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295046794] [2022-02-24 00:59:56,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:56,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:59:56,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:56,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:59:56,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:59:56,332 INFO L87 Difference]: Start difference. First operand 3360 states and 4892 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:57,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:00,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:00,624 INFO L93 Difference]: Finished difference Result 7211 states and 10522 transitions. [2022-02-24 01:00:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:00:00,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-02-24 01:00:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:00,630 INFO L225 Difference]: With dead ends: 7211 [2022-02-24 01:00:00,630 INFO L226 Difference]: Without dead ends: 3879 [2022-02-24 01:00:00,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:00,634 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:00,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 01:00:00,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2022-02-24 01:00:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3879. [2022-02-24 01:00:00,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 3874 states have (on average 1.4563758389261745) internal successors, (5642), 3874 states have internal predecessors, (5642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:00,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5646 transitions. [2022-02-24 01:00:00,689 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5646 transitions. Word has length 275 [2022-02-24 01:00:00,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:00,689 INFO L470 AbstractCegarLoop]: Abstraction has 3879 states and 5646 transitions. [2022-02-24 01:00:00,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5646 transitions. [2022-02-24 01:00:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-02-24 01:00:00,693 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:00,694 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:00,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 01:00:00,694 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:00,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:00,694 INFO L85 PathProgramCache]: Analyzing trace with hash 273465922, now seen corresponding path program 1 times [2022-02-24 01:00:00,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:00,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783354785] [2022-02-24 01:00:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:00,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-02-24 01:00:00,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:00,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783354785] [2022-02-24 01:00:00,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783354785] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:00,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:00,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:00:00,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622542265] [2022-02-24 01:00:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:00,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:00:00,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:00,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:00:00,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:00,849 INFO L87 Difference]: Start difference. First operand 3879 states and 5646 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:02,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:03,362 INFO L93 Difference]: Finished difference Result 8244 states and 12022 transitions. [2022-02-24 01:00:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:00:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-02-24 01:00:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:03,377 INFO L225 Difference]: With dead ends: 8244 [2022-02-24 01:00:03,378 INFO L226 Difference]: Without dead ends: 4393 [2022-02-24 01:00:03,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:03,383 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 157 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:03,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 591 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:00:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2022-02-24 01:00:03,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4393. [2022-02-24 01:00:03,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 4388 states have (on average 1.455788514129444) internal successors, (6388), 4388 states have internal predecessors, (6388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:03,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 6392 transitions. [2022-02-24 01:00:03,463 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 6392 transitions. Word has length 275 [2022-02-24 01:00:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:03,464 INFO L470 AbstractCegarLoop]: Abstraction has 4393 states and 6392 transitions. [2022-02-24 01:00:03,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 6392 transitions. [2022-02-24 01:00:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-02-24 01:00:03,470 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:03,470 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:03,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 01:00:03,470 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:03,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash -245826365, now seen corresponding path program 1 times [2022-02-24 01:00:03,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:03,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990373493] [2022-02-24 01:00:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:03,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:03,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-02-24 01:00:03,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:03,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990373493] [2022-02-24 01:00:03,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990373493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:03,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:03,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:00:03,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499619662] [2022-02-24 01:00:03,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:03,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:00:03,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:00:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:03,609 INFO L87 Difference]: Start difference. First operand 4393 states and 6392 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:04,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:07,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:07,979 INFO L93 Difference]: Finished difference Result 9274 states and 13516 transitions. [2022-02-24 01:00:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:00:07,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-02-24 01:00:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:07,987 INFO L225 Difference]: With dead ends: 9274 [2022-02-24 01:00:07,988 INFO L226 Difference]: Without dead ends: 4909 [2022-02-24 01:00:07,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:07,994 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 187 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:07,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 01:00:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2022-02-24 01:00:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 4909. [2022-02-24 01:00:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4909 states, 4904 states have (on average 1.4551386623164764) internal successors, (7136), 4904 states have internal predecessors, (7136), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 7140 transitions. [2022-02-24 01:00:08,062 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 7140 transitions. Word has length 275 [2022-02-24 01:00:08,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:08,063 INFO L470 AbstractCegarLoop]: Abstraction has 4909 states and 7140 transitions. [2022-02-24 01:00:08,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:08,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 7140 transitions. [2022-02-24 01:00:08,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-02-24 01:00:08,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:08,070 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:08,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 01:00:08,071 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:08,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-02-24 01:00:08,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:08,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508848057] [2022-02-24 01:00:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-02-24 01:00:08,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:08,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508848057] [2022-02-24 01:00:08,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508848057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:08,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:08,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:00:08,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918189240] [2022-02-24 01:00:08,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:08,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:00:08,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:08,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:00:08,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:08,320 INFO L87 Difference]: Start difference. First operand 4909 states and 7140 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:10,085 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 [] [2022-02-24 01:00:12,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:12,618 INFO L93 Difference]: Finished difference Result 10337 states and 15059 transitions. [2022-02-24 01:00:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:00:12,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 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 398 [2022-02-24 01:00:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:12,627 INFO L225 Difference]: With dead ends: 10337 [2022-02-24 01:00:12,628 INFO L226 Difference]: Without dead ends: 5456 [2022-02-24 01:00:12,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:12,635 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:12,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 01:00:12,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2022-02-24 01:00:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5456. [2022-02-24 01:00:12,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5451 states have (on average 1.4551458447991195) internal successors, (7932), 5451 states have internal predecessors, (7932), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 7936 transitions. [2022-02-24 01:00:12,730 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 7936 transitions. Word has length 398 [2022-02-24 01:00:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:12,730 INFO L470 AbstractCegarLoop]: Abstraction has 5456 states and 7936 transitions. [2022-02-24 01:00:12,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 7936 transitions. [2022-02-24 01:00:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-02-24 01:00:12,738 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:12,738 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:12,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 01:00:12,738 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:12,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash 32899640, now seen corresponding path program 1 times [2022-02-24 01:00:12,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:12,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754035561] [2022-02-24 01:00:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:12,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-02-24 01:00:12,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:12,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754035561] [2022-02-24 01:00:12,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754035561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:12,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:12,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:00:12,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313255046] [2022-02-24 01:00:12,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:12,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:00:12,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:12,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:00:12,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:12,965 INFO L87 Difference]: Start difference. First operand 5456 states and 7936 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:14,862 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 [] [2022-02-24 01:00:16,574 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 [] [2022-02-24 01:00:17,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:17,094 INFO L93 Difference]: Finished difference Result 11399 states and 16603 transitions. [2022-02-24 01:00:17,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:00:17,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 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 399 [2022-02-24 01:00:17,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:17,101 INFO L225 Difference]: With dead ends: 11399 [2022-02-24 01:00:17,101 INFO L226 Difference]: Without dead ends: 5971 [2022-02-24 01:00:17,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:17,105 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:17,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 01:00:17,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2022-02-24 01:00:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 5971. [2022-02-24 01:00:17,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5971 states, 5966 states have (on average 1.4549111632584646) internal successors, (8680), 5966 states have internal predecessors, (8680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 8684 transitions. [2022-02-24 01:00:17,192 INFO L78 Accepts]: Start accepts. Automaton has 5971 states and 8684 transitions. Word has length 399 [2022-02-24 01:00:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:17,192 INFO L470 AbstractCegarLoop]: Abstraction has 5971 states and 8684 transitions. [2022-02-24 01:00:17,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5971 states and 8684 transitions. [2022-02-24 01:00:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-02-24 01:00:17,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:17,200 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:17,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 01:00:17,201 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:17,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash -383046196, now seen corresponding path program 1 times [2022-02-24 01:00:17,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:17,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466590792] [2022-02-24 01:00:17,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:17,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-02-24 01:00:17,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:17,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466590792] [2022-02-24 01:00:17,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466590792] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:17,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:17,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:00:17,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304763682] [2022-02-24 01:00:17,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:17,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:00:17,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:17,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:00:17,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:17,416 INFO L87 Difference]: Start difference. First operand 5971 states and 8684 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:19,208 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 [] [2022-02-24 01:00:21,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:23,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:23,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:23,749 INFO L93 Difference]: Finished difference Result 12420 states and 18088 transitions. [2022-02-24 01:00:23,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:00:23,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 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 400 [2022-02-24 01:00:23,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:23,756 INFO L225 Difference]: With dead ends: 12420 [2022-02-24 01:00:23,756 INFO L226 Difference]: Without dead ends: 6477 [2022-02-24 01:00:23,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:00:23,761 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:23,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 590 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-24 01:00:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6477 states. [2022-02-24 01:00:23,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6477 to 6477. [2022-02-24 01:00:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6472 states have (on average 1.4550370828182941) internal successors, (9417), 6472 states have internal predecessors, (9417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 9421 transitions. [2022-02-24 01:00:23,853 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 9421 transitions. Word has length 400 [2022-02-24 01:00:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:23,854 INFO L470 AbstractCegarLoop]: Abstraction has 6477 states and 9421 transitions. [2022-02-24 01:00:23,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:23,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 9421 transitions. [2022-02-24 01:00:23,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-24 01:00:23,880 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:23,881 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:23,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 01:00:23,881 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:23,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-02-24 01:00:23,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:23,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027796633] [2022-02-24 01:00:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:23,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-02-24 01:00:24,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:24,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027796633] [2022-02-24 01:00:24,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027796633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:24,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:24,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:24,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310620833] [2022-02-24 01:00:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:24,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:24,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:24,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:24,129 INFO L87 Difference]: Start difference. First operand 6477 states and 9421 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:25,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:27,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:29,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:29,117 INFO L93 Difference]: Finished difference Result 13801 states and 19982 transitions. [2022-02-24 01:00:29,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:29,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 524 [2022-02-24 01:00:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:29,125 INFO L225 Difference]: With dead ends: 13801 [2022-02-24 01:00:29,126 INFO L226 Difference]: Without dead ends: 7352 [2022-02-24 01:00:29,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:29,134 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 50 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:29,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 663 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 01:00:29,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-02-24 01:00:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 6969. [2022-02-24 01:00:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 6964 states have (on average 1.452182653647329) internal successors, (10113), 6964 states have internal predecessors, (10113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 10117 transitions. [2022-02-24 01:00:29,258 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 10117 transitions. Word has length 524 [2022-02-24 01:00:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:29,259 INFO L470 AbstractCegarLoop]: Abstraction has 6969 states and 10117 transitions. [2022-02-24 01:00:29,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 10117 transitions. [2022-02-24 01:00:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-24 01:00:29,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:29,275 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:29,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 01:00:29,275 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-02-24 01:00:29,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:29,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277152419] [2022-02-24 01:00:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:29,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1698 proven. 480 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-02-24 01:00:29,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:29,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277152419] [2022-02-24 01:00:29,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277152419] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:00:29,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631592239] [2022-02-24 01:00:29,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:29,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:00:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:00:30,023 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) [2022-02-24 01:00:30,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 01:00:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:31,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-24 01:00:31,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:00:31,518 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:00:31,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:00:31,623 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 01:00:31,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 01:00:31,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 01:00:31,976 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:00:31,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:00:32,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:00:32,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 01:00:32,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 01:00:32,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 01:00:32,138 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-02-24 01:00:32,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 77 [2022-02-24 01:00:32,282 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-02-24 01:00:32,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 48 [2022-02-24 01:00:32,552 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:00:32,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 01:00:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-02-24 01:00:32,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:00:33,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-02-24 01:00:33,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-02-24 01:00:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-02-24 01:00:36,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631592239] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 01:00:36,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 01:00:36,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 14] total 29 [2022-02-24 01:00:36,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59312407] [2022-02-24 01:00:36,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:36,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 01:00:36,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 01:00:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=707, Unknown=1, NotChecked=0, Total=812 [2022-02-24 01:00:36,257 INFO L87 Difference]: Start difference. First operand 6969 states and 10117 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:39,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:48,127 INFO L93 Difference]: Finished difference Result 19721 states and 28513 transitions. [2022-02-24 01:00:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 01:00:48,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-02-24 01:00:48,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:48,143 INFO L225 Difference]: With dead ends: 19721 [2022-02-24 01:00:48,143 INFO L226 Difference]: Without dead ends: 12780 [2022-02-24 01:00:48,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=133, Invalid=920, Unknown=3, NotChecked=0, Total=1056 [2022-02-24 01:00:48,156 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 430 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:48,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 954 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 532 Invalid, 1 Unknown, 188 Unchecked, 3.6s Time] [2022-02-24 01:00:48,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12780 states. [2022-02-24 01:00:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12780 to 10942. [2022-02-24 01:00:48,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10942 states, 10937 states have (on average 1.4653927036664534) internal successors, (16027), 10937 states have internal predecessors, (16027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10942 states to 10942 states and 16031 transitions. [2022-02-24 01:00:48,340 INFO L78 Accepts]: Start accepts. Automaton has 10942 states and 16031 transitions. Word has length 524 [2022-02-24 01:00:48,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:48,340 INFO L470 AbstractCegarLoop]: Abstraction has 10942 states and 16031 transitions. [2022-02-24 01:00:48,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 10942 states and 16031 transitions. [2022-02-24 01:00:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-24 01:00:48,352 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:48,353 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:48,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-24 01:00:48,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-02-24 01:00:48,566 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:48,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-02-24 01:00:48,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:48,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474578931] [2022-02-24 01:00:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:48,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-02-24 01:00:48,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:48,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474578931] [2022-02-24 01:00:48,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474578931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:48,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:48,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:48,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219655893] [2022-02-24 01:00:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:48,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:48,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:48,864 INFO L87 Difference]: Start difference. First operand 10942 states and 16031 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:49,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:51,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:53,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:55,366 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 [] [2022-02-24 01:00:56,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:56,016 INFO L93 Difference]: Finished difference Result 22426 states and 32730 transitions. [2022-02-24 01:00:56,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:56,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 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 525 [2022-02-24 01:00:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:56,028 INFO L225 Difference]: With dead ends: 22426 [2022-02-24 01:00:56,028 INFO L226 Difference]: Without dead ends: 11416 [2022-02-24 01:00:56,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:56,062 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 49 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:56,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 661 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-02-24 01:00:56,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-02-24 01:00:56,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 10858. [2022-02-24 01:00:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.466967658711877) internal successors, (15921), 10853 states have internal predecessors, (15921), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:56,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15925 transitions. [2022-02-24 01:00:56,255 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15925 transitions. Word has length 525 [2022-02-24 01:00:56,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:56,256 INFO L470 AbstractCegarLoop]: Abstraction has 10858 states and 15925 transitions. [2022-02-24 01:00:56,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:56,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15925 transitions. [2022-02-24 01:00:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-24 01:00:56,267 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:56,267 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 11, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:56,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 01:00:56,268 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:56,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash 707414919, now seen corresponding path program 1 times [2022-02-24 01:00:56,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:56,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391346286] [2022-02-24 01:00:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2687 backedges. 1167 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2022-02-24 01:00:56,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:56,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391346286] [2022-02-24 01:00:56,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391346286] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:56,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:56,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:56,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215068714] [2022-02-24 01:00:56,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:56,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:56,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:56,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:56,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:56,493 INFO L87 Difference]: Start difference. First operand 10858 states and 15925 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:58,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:59,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:59,221 INFO L93 Difference]: Finished difference Result 22246 states and 32506 transitions. [2022-02-24 01:00:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:59,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 526 [2022-02-24 01:00:59,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:59,235 INFO L225 Difference]: With dead ends: 22246 [2022-02-24 01:00:59,235 INFO L226 Difference]: Without dead ends: 11416 [2022-02-24 01:00:59,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:59,246 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 55 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:59,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 659 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 01:00:59,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-02-24 01:00:59,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 10858. [2022-02-24 01:00:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.464940569427808) internal successors, (15899), 10853 states have internal predecessors, (15899), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:59,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15903 transitions. [2022-02-24 01:00:59,453 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15903 transitions. Word has length 526 [2022-02-24 01:00:59,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:59,460 INFO L470 AbstractCegarLoop]: Abstraction has 10858 states and 15903 transitions. [2022-02-24 01:00:59,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:59,460 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15903 transitions. [2022-02-24 01:00:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-02-24 01:00:59,471 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:59,471 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:59,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 01:00:59,472 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:59,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 578027630, now seen corresponding path program 1 times [2022-02-24 01:00:59,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:59,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487378861] [2022-02-24 01:00:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:59,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:59,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2698 backedges. 1178 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2022-02-24 01:00:59,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:59,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487378861] [2022-02-24 01:00:59,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487378861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:59,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:59,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:59,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67958472] [2022-02-24 01:00:59,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:59,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:59,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:59,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:59,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:59,732 INFO L87 Difference]: Start difference. First operand 10858 states and 15903 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:01,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:04,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:06,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:06,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:06,701 INFO L93 Difference]: Finished difference Result 22202 states and 32396 transitions. [2022-02-24 01:01:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:06,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 527 [2022-02-24 01:01:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:06,713 INFO L225 Difference]: With dead ends: 22202 [2022-02-24 01:01:06,713 INFO L226 Difference]: Without dead ends: 11372 [2022-02-24 01:01:06,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:06,720 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 52 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:06,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 657 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 508 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 01:01:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11372 states. [2022-02-24 01:01:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11372 to 10858. [2022-02-24 01:01:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.4629134801437391) internal successors, (15877), 10853 states have internal predecessors, (15877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15881 transitions. [2022-02-24 01:01:06,881 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15881 transitions. Word has length 527 [2022-02-24 01:01:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:06,882 INFO L470 AbstractCegarLoop]: Abstraction has 10858 states and 15881 transitions. [2022-02-24 01:01:06,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15881 transitions. [2022-02-24 01:01:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-02-24 01:01:06,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:06,894 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:06,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 01:01:06,928 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:06,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1419801683, now seen corresponding path program 1 times [2022-02-24 01:01:06,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:06,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758800294] [2022-02-24 01:01:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:07,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 1079 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-02-24 01:01:07,147 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:07,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758800294] [2022-02-24 01:01:07,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758800294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:07,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:07,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:07,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322364228] [2022-02-24 01:01:07,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:07,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:07,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:07,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:07,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:07,148 INFO L87 Difference]: Start difference. First operand 10858 states and 15881 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:09,046 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 [] [2022-02-24 01:01:11,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:13,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:15,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:15,750 INFO L93 Difference]: Finished difference Result 22082 states and 32208 transitions. [2022-02-24 01:01:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:15,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 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 539 [2022-02-24 01:01:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:15,763 INFO L225 Difference]: With dead ends: 22082 [2022-02-24 01:01:15,763 INFO L226 Difference]: Without dead ends: 11252 [2022-02-24 01:01:15,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:15,773 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 59 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:15,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 643 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 481 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-02-24 01:01:15,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-02-24 01:01:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 10858. [2022-02-24 01:01:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.46088639085967) internal successors, (15855), 10853 states have internal predecessors, (15855), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15859 transitions. [2022-02-24 01:01:15,959 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15859 transitions. Word has length 539 [2022-02-24 01:01:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:15,959 INFO L470 AbstractCegarLoop]: Abstraction has 10858 states and 15859 transitions. [2022-02-24 01:01:15,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15859 transitions. [2022-02-24 01:01:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-02-24 01:01:15,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:15,971 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:15,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 01:01:15,971 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:15,971 INFO L85 PathProgramCache]: Analyzing trace with hash 742695721, now seen corresponding path program 1 times [2022-02-24 01:01:15,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:15,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089828078] [2022-02-24 01:01:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:15,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:16,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1314 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-02-24 01:01:16,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:16,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089828078] [2022-02-24 01:01:16,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089828078] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:16,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:16,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:16,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020891987] [2022-02-24 01:01:16,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:16,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:16,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:16,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:16,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:16,263 INFO L87 Difference]: Start difference. First operand 10858 states and 15859 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:18,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:18,902 INFO L93 Difference]: Finished difference Result 22082 states and 32164 transitions. [2022-02-24 01:01:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:18,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 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 540 [2022-02-24 01:01:18,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:18,912 INFO L225 Difference]: With dead ends: 22082 [2022-02-24 01:01:18,912 INFO L226 Difference]: Without dead ends: 11252 [2022-02-24 01:01:18,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:18,918 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:18,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 641 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:01:18,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-02-24 01:01:19,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 10858. [2022-02-24 01:01:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.4588593015756013) internal successors, (15833), 10853 states have internal predecessors, (15833), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:19,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15837 transitions. [2022-02-24 01:01:19,076 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15837 transitions. Word has length 540 [2022-02-24 01:01:19,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:19,076 INFO L470 AbstractCegarLoop]: Abstraction has 10858 states and 15837 transitions. [2022-02-24 01:01:19,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:19,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15837 transitions. [2022-02-24 01:01:19,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-02-24 01:01:19,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:19,088 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:19,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 01:01:19,089 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:19,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:19,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1479219579, now seen corresponding path program 1 times [2022-02-24 01:01:19,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:19,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064836916] [2022-02-24 01:01:19,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:19,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:19,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 1323 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-02-24 01:01:19,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:19,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064836916] [2022-02-24 01:01:19,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064836916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:19,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:19,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:19,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803938308] [2022-02-24 01:01:19,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:19,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:19,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:19,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:19,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:19,382 INFO L87 Difference]: Start difference. First operand 10858 states and 15837 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:21,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:23,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:25,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:26,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:26,497 INFO L93 Difference]: Finished difference Result 21952 states and 31962 transitions. [2022-02-24 01:01:26,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:26,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 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 541 [2022-02-24 01:01:26,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:26,510 INFO L225 Difference]: With dead ends: 21952 [2022-02-24 01:01:26,510 INFO L226 Difference]: Without dead ends: 10924 [2022-02-24 01:01:26,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:26,521 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 29 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:26,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 625 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 01:01:26,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-02-24 01:01:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10660. [2022-02-24 01:01:26,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4653214453308305) internal successors, (15613), 10655 states have internal predecessors, (15613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15617 transitions. [2022-02-24 01:01:26,716 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15617 transitions. Word has length 541 [2022-02-24 01:01:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:26,717 INFO L470 AbstractCegarLoop]: Abstraction has 10660 states and 15617 transitions. [2022-02-24 01:01:26,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15617 transitions. [2022-02-24 01:01:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-02-24 01:01:26,728 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:26,729 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:26,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 01:01:26,730 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-02-24 01:01:26,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:26,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956275397] [2022-02-24 01:01:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:26,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-02-24 01:01:27,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:27,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956275397] [2022-02-24 01:01:27,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956275397] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:27,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:27,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:27,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72877961] [2022-02-24 01:01:27,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:27,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:27,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:27,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:27,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:27,122 INFO L87 Difference]: Start difference. First operand 10660 states and 15617 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:28,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:29,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:31,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:33,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:34,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:34,044 INFO L93 Difference]: Finished difference Result 21556 states and 31522 transitions. [2022-02-24 01:01:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:34,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 546 [2022-02-24 01:01:34,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:34,058 INFO L225 Difference]: With dead ends: 21556 [2022-02-24 01:01:34,059 INFO L226 Difference]: Without dead ends: 10924 [2022-02-24 01:01:34,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:34,069 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 30 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:34,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 623 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 437 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-24 01:01:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-02-24 01:01:34,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10660. [2022-02-24 01:01:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4632566870014079) internal successors, (15591), 10655 states have internal predecessors, (15591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15595 transitions. [2022-02-24 01:01:34,264 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15595 transitions. Word has length 546 [2022-02-24 01:01:34,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:34,264 INFO L470 AbstractCegarLoop]: Abstraction has 10660 states and 15595 transitions. [2022-02-24 01:01:34,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15595 transitions. [2022-02-24 01:01:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-02-24 01:01:34,275 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:34,275 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:34,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-24 01:01:34,276 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:34,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1541769972, now seen corresponding path program 1 times [2022-02-24 01:01:34,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:34,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690261990] [2022-02-24 01:01:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:34,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1135 proven. 46 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2022-02-24 01:01:34,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:34,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690261990] [2022-02-24 01:01:34,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690261990] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:01:34,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619199554] [2022-02-24 01:01:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:34,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:01:34,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:01:34,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:01:34,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 01:01:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:35,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 01:01:35,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:01:35,981 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:01:35,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:01:36,023 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:01:36,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 01:01:36,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 01:01:36,521 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:01:36,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:01:36,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 01:01:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1130 proven. 238 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2022-02-24 01:01:36,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:01:37,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2022-02-24 01:01:37,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619199554] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 01:01:37,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 01:01:37,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-24 01:01:37,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441856198] [2022-02-24 01:01:37,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:37,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:01:37,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:37,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:01:37,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-24 01:01:37,209 INFO L87 Difference]: Start difference. First operand 10660 states and 15595 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:39,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:39,594 INFO L93 Difference]: Finished difference Result 22707 states and 33011 transitions. [2022-02-24 01:01:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:01:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-02-24 01:01:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:39,607 INFO L225 Difference]: With dead ends: 22707 [2022-02-24 01:01:39,607 INFO L226 Difference]: Without dead ends: 12075 [2022-02-24 01:01:39,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1092 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-24 01:01:39,618 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 120 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:39,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 511 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 01:01:39,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12075 states. [2022-02-24 01:01:39,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12075 to 10660. [2022-02-24 01:01:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4610980760206476) internal successors, (15568), 10655 states have internal predecessors, (15568), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15572 transitions. [2022-02-24 01:01:39,822 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15572 transitions. Word has length 546 [2022-02-24 01:01:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:39,823 INFO L470 AbstractCegarLoop]: Abstraction has 10660 states and 15572 transitions. [2022-02-24 01:01:39,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:39,823 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15572 transitions. [2022-02-24 01:01:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-02-24 01:01:39,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:39,834 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:39,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-24 01:01:40,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2022-02-24 01:01:40,048 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:40,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:40,048 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-02-24 01:01:40,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:40,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672219504] [2022-02-24 01:01:40,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:40,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:40,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:40,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-02-24 01:01:40,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:40,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672219504] [2022-02-24 01:01:40,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672219504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:40,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:40,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:40,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769202336] [2022-02-24 01:01:40,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:40,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:40,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:40,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:40,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:40,267 INFO L87 Difference]: Start difference. First operand 10660 states and 15572 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:42,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:44,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:45,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:46,480 INFO L93 Difference]: Finished difference Result 21468 states and 31318 transitions. [2022-02-24 01:01:46,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:46,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 547 [2022-02-24 01:01:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:46,492 INFO L225 Difference]: With dead ends: 21468 [2022-02-24 01:01:46,493 INFO L226 Difference]: Without dead ends: 10836 [2022-02-24 01:01:46,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:46,502 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 24 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:46,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 615 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 01:01:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-02-24 01:01:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10660. [2022-02-24 01:01:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4590333176912247) internal successors, (15546), 10655 states have internal predecessors, (15546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15550 transitions. [2022-02-24 01:01:46,669 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15550 transitions. Word has length 547 [2022-02-24 01:01:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:46,669 INFO L470 AbstractCegarLoop]: Abstraction has 10660 states and 15550 transitions. [2022-02-24 01:01:46,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15550 transitions. [2022-02-24 01:01:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-02-24 01:01:46,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:46,681 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:46,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 01:01:46,681 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:46,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash -858071160, now seen corresponding path program 1 times [2022-02-24 01:01:46,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:46,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144394573] [2022-02-24 01:01:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2808 backedges. 1076 proven. 0 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2022-02-24 01:01:46,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:46,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144394573] [2022-02-24 01:01:46,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144394573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:46,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:46,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:46,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581657] [2022-02-24 01:01:46,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:46,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:46,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:46,939 INFO L87 Difference]: Start difference. First operand 10660 states and 15550 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:48,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:49,460 INFO L93 Difference]: Finished difference Result 22292 states and 32478 transitions. [2022-02-24 01:01:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:49,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 547 [2022-02-24 01:01:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:49,477 INFO L225 Difference]: With dead ends: 22292 [2022-02-24 01:01:49,477 INFO L226 Difference]: Without dead ends: 11660 [2022-02-24 01:01:49,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:49,487 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:49,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 613 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:01:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11660 states. [2022-02-24 01:01:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11660 to 11232. [2022-02-24 01:01:49,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11232 states, 11227 states have (on average 1.4611205130489) internal successors, (16404), 11227 states have internal predecessors, (16404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11232 states to 11232 states and 16408 transitions. [2022-02-24 01:01:49,669 INFO L78 Accepts]: Start accepts. Automaton has 11232 states and 16408 transitions. Word has length 547 [2022-02-24 01:01:49,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:49,673 INFO L470 AbstractCegarLoop]: Abstraction has 11232 states and 16408 transitions. [2022-02-24 01:01:49,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:49,673 INFO L276 IsEmpty]: Start isEmpty. Operand 11232 states and 16408 transitions. [2022-02-24 01:01:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-02-24 01:01:49,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:49,722 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:49,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 01:01:49,722 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1838622775, now seen corresponding path program 1 times [2022-02-24 01:01:49,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:49,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780171851] [2022-02-24 01:01:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1410 proven. 190 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2022-02-24 01:01:49,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:49,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780171851] [2022-02-24 01:01:49,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780171851] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:01:49,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5512823] [2022-02-24 01:01:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:49,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:01:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:01:49,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:01:49,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 01:01:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:51,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-24 01:01:51,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:01:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1327 proven. 0 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-02-24 01:01:52,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-24 01:01:52,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5512823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:52,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-24 01:01:52,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-24 01:01:52,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250059920] [2022-02-24 01:01:52,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:52,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-24 01:01:52,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:52,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-24 01:01:52,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-24 01:01:52,103 INFO L87 Difference]: Start difference. First operand 11232 states and 16408 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:52,330 INFO L93 Difference]: Finished difference Result 23470 states and 34323 transitions. [2022-02-24 01:01:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-24 01:01:52,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 548 [2022-02-24 01:01:52,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:52,342 INFO L225 Difference]: With dead ends: 23470 [2022-02-24 01:01:52,342 INFO L226 Difference]: Without dead ends: 12266 [2022-02-24 01:01:52,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-24 01:01:52,352 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 136 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:52,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 382 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-24 01:01:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2022-02-24 01:01:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 12266. [2022-02-24 01:01:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12266 states, 12261 states have (on average 1.4631759236603865) internal successors, (17940), 12261 states have internal predecessors, (17940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:52,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12266 states to 12266 states and 17944 transitions. [2022-02-24 01:01:52,541 INFO L78 Accepts]: Start accepts. Automaton has 12266 states and 17944 transitions. Word has length 548 [2022-02-24 01:01:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:52,542 INFO L470 AbstractCegarLoop]: Abstraction has 12266 states and 17944 transitions. [2022-02-24 01:01:52,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 12266 states and 17944 transitions. [2022-02-24 01:01:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-02-24 01:01:52,554 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:52,554 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:52,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-24 01:01:52,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:01:52,780 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-02-24 01:01:52,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:52,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653850919] [2022-02-24 01:01:52,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:52,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:53,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-02-24 01:01:53,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:53,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653850919] [2022-02-24 01:01:53,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653850919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:53,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:53,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 01:01:53,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306378356] [2022-02-24 01:01:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:53,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 01:01:53,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:53,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 01:01:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:53,124 INFO L87 Difference]: Start difference. First operand 12266 states and 17944 transitions. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:54,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:56,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:57,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:59,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:01,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:02,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:02,919 INFO L93 Difference]: Finished difference Result 35184 states and 51344 transitions. [2022-02-24 01:02:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 01:02:02,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 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 553 [2022-02-24 01:02:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:02,947 INFO L225 Difference]: With dead ends: 35184 [2022-02-24 01:02:02,947 INFO L226 Difference]: Without dead ends: 22946 [2022-02-24 01:02:02,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-24 01:02:02,973 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 260 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:02,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1176 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1249 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-02-24 01:02:02,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22946 states. [2022-02-24 01:02:03,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22946 to 12861. [2022-02-24 01:02:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12861 states, 12856 states have (on average 1.4639079029247044) internal successors, (18820), 12856 states have internal predecessors, (18820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12861 states to 12861 states and 18824 transitions. [2022-02-24 01:02:03,337 INFO L78 Accepts]: Start accepts. Automaton has 12861 states and 18824 transitions. Word has length 553 [2022-02-24 01:02:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:03,341 INFO L470 AbstractCegarLoop]: Abstraction has 12861 states and 18824 transitions. [2022-02-24 01:02:03,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12861 states and 18824 transitions. [2022-02-24 01:02:03,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-02-24 01:02:03,356 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:03,357 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:03,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 01:02:03,357 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:03,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-02-24 01:02:03,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:03,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853485841] [2022-02-24 01:02:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:03,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:05,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1127 proven. 1526 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-02-24 01:02:05,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:05,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853485841] [2022-02-24 01:02:05,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853485841] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:02:05,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882577528] [2022-02-24 01:02:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:05,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:02:05,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:02:05,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:02:05,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-24 01:02:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:06,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 94 conjunts are in the unsatisfiable core [2022-02-24 01:02:06,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:02:06,753 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:02:06,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:02:06,861 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 01:02:06,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 01:02:07,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 01:02:07,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-24 01:02:07,270 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-24 01:02:07,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-24 01:02:07,278 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:02:07,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-02-24 01:02:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-24 01:02:07,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-24 01:02:07,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,810 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-24 01:02:07,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-24 01:02:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,884 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 01:02:07,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-24 01:02:07,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,889 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 01:02:07,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:07,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 01:02:08,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:08,507 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 01:02:08,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-24 01:02:08,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:08,540 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 01:02:08,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-24 01:02:08,573 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-02-24 01:02:08,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-02-24 01:02:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 288 [2022-02-24 01:02:09,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:09,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 282 [2022-02-24 01:02:09,799 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-24 01:02:09,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 354 treesize of output 367 [2022-02-24 01:02:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 273 [2022-02-24 01:02:14,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 279 [2022-02-24 01:02:14,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,580 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-24 01:02:14,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 358 treesize of output 349 [2022-02-24 01:02:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 182 [2022-02-24 01:02:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:02:14,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 104 [2022-02-24 01:02:14,924 INFO L356 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-02-24 01:02:14,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 149 [2022-02-24 01:02:15,027 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 01:02:15,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 01:02:15,158 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:02:15,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 01:02:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1210 proven. 480 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-02-24 01:02:15,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:02:19,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:02:19,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:02:19,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 816 treesize of output 714 [2022-02-24 01:02:20,126 INFO L356 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-02-24 01:02:20,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 1 [2022-02-24 01:02:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-02-24 01:02:20,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882577528] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 01:02:20,429 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 01:02:20,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 13] total 50 [2022-02-24 01:02:20,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716293208] [2022-02-24 01:02:20,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 01:02:20,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 01:02:20,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 01:02:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=2176, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 01:02:20,431 INFO L87 Difference]: Start difference. First operand 12861 states and 18824 transitions. Second operand has 50 states, 50 states have (on average 16.06) internal successors, (803), 49 states have internal predecessors, (803), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:22,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:32,907 INFO L93 Difference]: Finished difference Result 364028 states and 520472 transitions. [2022-02-24 01:04:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2022-02-24 01:04:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 16.06) internal successors, (803), 49 states have internal predecessors, (803), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-02-24 01:04:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:33,855 INFO L225 Difference]: With dead ends: 364028 [2022-02-24 01:04:33,856 INFO L226 Difference]: Without dead ends: 351117 [2022-02-24 01:04:33,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2573 GetRequests, 1660 SyntacticMatches, 114 SemanticMatches, 799 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 323996 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=53546, Invalid=587254, Unknown=0, NotChecked=0, Total=640800 [2022-02-24 01:04:33,959 INFO L933 BasicCegarLoop]: 2076 mSDtfsCounter, 13018 mSDsluCounter, 43594 mSDsCounter, 0 mSdLazyCounter, 43975 mSolverCounterSat, 2816 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13018 SdHoareTripleChecker+Valid, 45670 SdHoareTripleChecker+Invalid, 73792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2816 IncrementalHoareTripleChecker+Valid, 43975 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 27000 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:33,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13018 Valid, 45670 Invalid, 73792 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2816 Valid, 43975 Invalid, 1 Unknown, 27000 Unchecked, 46.7s Time] [2022-02-24 01:04:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351117 states. [2022-02-24 01:04:40,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351117 to 177172. [2022-02-24 01:04:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177172 states, 177167 states have (on average 1.4711430458268189) internal successors, (260638), 177167 states have internal predecessors, (260638), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177172 states to 177172 states and 260642 transitions. [2022-02-24 01:04:41,320 INFO L78 Accepts]: Start accepts. Automaton has 177172 states and 260642 transitions. Word has length 553 [2022-02-24 01:04:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:41,320 INFO L470 AbstractCegarLoop]: Abstraction has 177172 states and 260642 transitions. [2022-02-24 01:04:41,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 16.06) internal successors, (803), 49 states have internal predecessors, (803), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 177172 states and 260642 transitions. [2022-02-24 01:04:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-02-24 01:04:41,485 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:41,485 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:04:41,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-24 01:04:41,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:04:41,690 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:41,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash -293158755, now seen corresponding path program 1 times [2022-02-24 01:04:41,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:41,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092427007] [2022-02-24 01:04:41,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:41,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1285 proven. 224 refuted. 0 times theorem prover too weak. 1380 trivial. 0 not checked. [2022-02-24 01:04:42,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:42,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092427007] [2022-02-24 01:04:42,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092427007] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:04:42,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129669112] [2022-02-24 01:04:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:42,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:04:42,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:04:42,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:04:42,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-24 01:04:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:44,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 94 conjunts are in the unsatisfiable core [2022-02-24 01:04:44,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:04:44,254 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:04:44,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:04:44,330 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 01:04:44,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 01:04:44,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 01:04:44,623 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:04:44,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 01:04:44,631 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:04:44,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 01:04:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:44,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-24 01:04:44,659 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-24 01:04:44,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-24 01:04:44,667 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:04:44,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-02-24 01:04:45,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:45,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-24 01:04:45,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:45,312 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-24 01:04:45,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-24 01:04:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:45,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-24 01:04:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:45,378 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 01:04:45,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-24 01:04:45,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:45,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 01:04:45,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:45,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 01:04:45,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:46,046 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 01:04:46,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-24 01:04:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:46,101 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 01:04:46,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-24 01:04:46,148 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-24 01:04:46,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-24 01:04:57,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-02-24 01:04:57,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-02-24 01:04:57,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,409 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-02-24 01:04:57,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 295 treesize of output 299 [2022-02-24 01:08:28,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-02-24 01:08:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-02-24 01:08:28,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:28,763 INFO L356 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-02-24 01:08:28,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 299 treesize of output 292 [2022-02-24 01:08:34,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:34,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 114 [2022-02-24 01:08:34,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:34,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 78 [2022-02-24 01:08:34,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:34,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:34,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:34,195 INFO L356 Elim1Store]: treesize reduction 169, result has 23.5 percent of original size [2022-02-24 01:08:34,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 129 [2022-02-24 01:08:34,351 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 01:08:34,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 01:08:34,499 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:08:34,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 01:08:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1210 proven. 480 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-02-24 01:08:34,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:08:38,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:38,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:38,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-02-24 01:08:38,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:38,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:38,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-02-24 01:08:52,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:52,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:52,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-02-24 01:08:52,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:52,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:52,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 01:08:52,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:52,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-02-24 01:08:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-02-24 01:08:52,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129669112] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 01:08:52,522 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 01:08:52,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 14] total 40 [2022-02-24 01:08:52,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110773093] [2022-02-24 01:08:52,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 01:08:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 01:08:52,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:08:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 01:08:52,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1313, Unknown=4, NotChecked=0, Total=1560 [2022-02-24 01:08:52,524 INFO L87 Difference]: Start difference. First operand 177172 states and 260642 transitions. Second operand has 40 states, 40 states have (on average 14.05) internal successors, (562), 39 states have internal predecessors, (562), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:08:53,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:08:56,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:08:58,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:08:59,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:09:01,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:09:05,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:09:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:09:20,693 INFO L93 Difference]: Finished difference Result 505237 states and 739269 transitions. [2022-02-24 01:09:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-24 01:09:20,693 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 14.05) internal successors, (562), 39 states have internal predecessors, (562), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 554 [2022-02-24 01:09:20,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:09:21,159 INFO L225 Difference]: With dead ends: 505237 [2022-02-24 01:09:21,159 INFO L226 Difference]: Without dead ends: 328093 [2022-02-24 01:09:21,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1217 GetRequests, 1119 SyntacticMatches, 11 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2656 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=974, Invalid=6854, Unknown=4, NotChecked=0, Total=7832 [2022-02-24 01:09:21,364 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1506 mSDsluCounter, 6430 mSDsCounter, 0 mSdLazyCounter, 4856 mSolverCounterSat, 195 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 6850 SdHoareTripleChecker+Invalid, 6270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 4856 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1217 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:09:21,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 6850 Invalid, 6270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 4856 Invalid, 2 Unknown, 1217 Unchecked, 16.0s Time] [2022-02-24 01:09:21,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328093 states. [2022-02-24 01:09:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328093 to 189066. [2022-02-24 01:09:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189066 states, 189061 states have (on average 1.4791099169051258) internal successors, (279642), 189061 states have internal predecessors, (279642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:09:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189066 states to 189066 states and 279646 transitions. [2022-02-24 01:09:28,767 INFO L78 Accepts]: Start accepts. Automaton has 189066 states and 279646 transitions. Word has length 554 [2022-02-24 01:09:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:09:28,768 INFO L470 AbstractCegarLoop]: Abstraction has 189066 states and 279646 transitions. [2022-02-24 01:09:28,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 14.05) internal successors, (562), 39 states have internal predecessors, (562), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:09:28,768 INFO L276 IsEmpty]: Start isEmpty. Operand 189066 states and 279646 transitions. [2022-02-24 01:09:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-02-24 01:09:29,131 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:09:29,132 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:09:29,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-24 01:09:29,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2022-02-24 01:09:29,332 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:09:29,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:09:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash 914054680, now seen corresponding path program 1 times [2022-02-24 01:09:29,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:09:29,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262893256] [2022-02-24 01:09:29,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:09:29,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:09:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:09:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:09:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:09:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2893 trivial. 0 not checked. [2022-02-24 01:09:30,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:09:30,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262893256] [2022-02-24 01:09:30,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262893256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:09:30,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:09:30,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 01:09:30,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036574015] [2022-02-24 01:09:30,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:09:30,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 01:09:30,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:09:30,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 01:09:30,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 01:09:30,090 INFO L87 Difference]: Start difference. First operand 189066 states and 279646 transitions. Second operand has 7 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:09:31,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []