/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.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:23:13,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:23:13,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:23:14,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:23:14,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:23:14,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:23:14,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:23:14,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:23:14,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:23:14,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:23:14,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:23:14,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:23:14,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:23:14,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:23:14,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:23:14,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:23:14,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:23:14,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:23:14,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:23:14,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:23:14,042 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:23:14,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:23:14,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:23:14,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:23:14,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:23:14,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:23:14,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:23:14,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:23:14,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:23:14,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:23:14,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 12:23:14,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 12:23:14,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 12:23:14,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 12:23:14,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 12:23:14,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 12:23:14,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 12:23:14,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 12:23:14,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 12:23:14,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:23:14,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:23:14,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:23:14,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:23:14,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:23:14,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:23:14,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:23:14,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:23:14,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:23:14,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:23:14,094 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:23:14,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:23:14,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:23:14,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:23:14,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:23:14,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:23:14,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:23:14,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:23:14,096 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:23:14,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:23:14,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:23:14,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:23:14,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:23:14,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:23:14,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:23:14,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:23:14,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:23:14,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:23:14,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:23:14,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:23:14,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:23:14,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:23:14,098 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:23:14,098 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:23:14,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:23:14,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:23:14,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:23:14,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:23:14,293 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:23:14,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-20 12:23:14,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ffd237d/c3fbd9d69ef44b7ba29a0ae0fccb4303/FLAG54fb20cc5 [2022-03-20 12:23:14,822 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:23:14,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-03-20 12:23:14,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ffd237d/c3fbd9d69ef44b7ba29a0ae0fccb4303/FLAG54fb20cc5 [2022-03-20 12:23:15,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ffd237d/c3fbd9d69ef44b7ba29a0ae0fccb4303 [2022-03-20 12:23:15,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:23:15,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:23:15,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:23:15,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:23:15,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:23:15,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f3f3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15, skipping insertion in model container [2022-03-20 12:23:15,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:23:15,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:23:15,469 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.10.i.cil-1.c[73581,73594] [2022-03-20 12:23:15,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:23:15,501 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:23:15,566 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.10.i.cil-1.c[73581,73594] [2022-03-20 12:23:15,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:23:15,582 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:23:15,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15 WrapperNode [2022-03-20 12:23:15,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:23:15,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:23:15,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:23:15,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:23:15,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:23:15,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:23:15,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:23:15,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:23:15,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (1/1) ... [2022-03-20 12:23:15,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:23:15,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:23:15,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 12:23:15,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 12:23:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:23:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:23:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:23:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 12:23:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 12:23:15,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:23:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 12:23:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:23:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:23:15,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:23:15,731 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:23:15,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:23:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:23:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:23:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:23:15,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:23:15,833 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:23:15,834 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:23:16,966 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:23:17,320 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 12:23:17,320 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 12:23:17,329 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:23:17,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:23:17,335 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:23:17,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:23:17 BoogieIcfgContainer [2022-03-20 12:23:17,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:23:17,337 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:23:17,337 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:23:17,338 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:23:17,340 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:23:17" (1/1) ... [2022-03-20 12:23:17,342 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:23:17,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:23:17 BasicIcfg [2022-03-20 12:23:17,372 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:23:17,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:23:17,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:23:17,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:23:17,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:23:15" (1/4) ... [2022-03-20 12:23:17,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ff6aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:23:17, skipping insertion in model container [2022-03-20 12:23:17,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:23:15" (2/4) ... [2022-03-20 12:23:17,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ff6aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:23:17, skipping insertion in model container [2022-03-20 12:23:17,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:23:17" (3/4) ... [2022-03-20 12:23:17,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ff6aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:23:17, skipping insertion in model container [2022-03-20 12:23:17,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:23:17" (4/4) ... [2022-03-20 12:23:17,378 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cqvasr [2022-03-20 12:23:17,381 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:23:17,381 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:23:17,412 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:23:17,416 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 12:23:17,416 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:23:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 12:23:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 12:23:17,435 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:17,435 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:23:17,436 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:17,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-03-20 12:23:17,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:17,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741469225] [2022-03-20 12:23:17,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:17,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:17,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:17,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741469225] [2022-03-20 12:23:17,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741469225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:17,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:17,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:17,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769143928] [2022-03-20 12:23:17,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:17,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:17,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:17,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:17,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:17,969 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:19,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:21,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:24,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:25,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:25,111 INFO L93 Difference]: Finished difference Result 330 states and 552 transitions. [2022-03-20 12:23:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:25,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-20 12:23:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:25,121 INFO L225 Difference]: With dead ends: 330 [2022-03-20 12:23:25,121 INFO L226 Difference]: Without dead ends: 168 [2022-03-20 12:23:25,123 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:23:25,125 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 34 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:25,126 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 595 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 12:23:25,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-03-20 12:23:25,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2022-03-20 12:23:25,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.547945205479452) internal successors, (226), 146 states have internal predecessors, (226), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:25,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 230 transitions. [2022-03-20 12:23:25,156 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 230 transitions. Word has length 49 [2022-03-20 12:23:25,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:25,156 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 230 transitions. [2022-03-20 12:23:25,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:25,157 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2022-03-20 12:23:25,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-20 12:23:25,158 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:25,158 INFO L499 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] [2022-03-20 12:23:25,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:23:25,159 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:25,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:25,159 INFO L85 PathProgramCache]: Analyzing trace with hash -371445777, now seen corresponding path program 1 times [2022-03-20 12:23:25,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:25,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018995232] [2022-03-20 12:23:25,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:25,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:25,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:25,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018995232] [2022-03-20 12:23:25,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018995232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:25,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:25,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862149347] [2022-03-20 12:23:25,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:25,287 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:25,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:25,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:25,288 INFO L87 Difference]: Start difference. First operand 151 states and 230 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:27,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:29,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:30,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:30,012 INFO L93 Difference]: Finished difference Result 293 states and 443 transitions. [2022-03-20 12:23:30,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:30,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-03-20 12:23:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:30,014 INFO L225 Difference]: With dead ends: 293 [2022-03-20 12:23:30,014 INFO L226 Difference]: Without dead ends: 168 [2022-03-20 12:23:30,015 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:23:30,015 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:30,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 12:23:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-03-20 12:23:30,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2022-03-20 12:23:30,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.5410958904109588) internal successors, (225), 146 states have internal predecessors, (225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 229 transitions. [2022-03-20 12:23:30,023 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 229 transitions. Word has length 62 [2022-03-20 12:23:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:30,024 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 229 transitions. [2022-03-20 12:23:30,024 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 229 transitions. [2022-03-20 12:23:30,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:23:30,025 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:30,025 INFO L499 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] [2022-03-20 12:23:30,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:23:30,025 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:30,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:30,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2073571452, now seen corresponding path program 1 times [2022-03-20 12:23:30,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:30,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705981889] [2022-03-20 12:23:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:30,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:30,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:30,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:30,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705981889] [2022-03-20 12:23:30,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705981889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:30,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:30,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:30,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562912150] [2022-03-20 12:23:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:30,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:30,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:30,224 INFO L87 Difference]: Start difference. First operand 151 states and 229 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:31,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:33,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:34,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:36,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:37,028 INFO L93 Difference]: Finished difference Result 292 states and 441 transitions. [2022-03-20 12:23:37,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:37,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 12:23:37,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:37,031 INFO L225 Difference]: With dead ends: 292 [2022-03-20 12:23:37,032 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 12:23:37,033 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:23:37,033 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:37,033 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 12:23:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 12:23:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2022-03-20 12:23:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 146 states have internal predecessors, (224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 228 transitions. [2022-03-20 12:23:37,045 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 228 transitions. Word has length 63 [2022-03-20 12:23:37,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:37,046 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 228 transitions. [2022-03-20 12:23:37,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 228 transitions. [2022-03-20 12:23:37,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:23:37,047 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:37,047 INFO L499 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] [2022-03-20 12:23:37,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:23:37,048 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1285979292, now seen corresponding path program 1 times [2022-03-20 12:23:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:37,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845538761] [2022-03-20 12:23:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:37,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:37,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:37,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845538761] [2022-03-20 12:23:37,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845538761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:37,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:37,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:37,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100999312] [2022-03-20 12:23:37,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:37,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:37,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:37,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:37,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:37,232 INFO L87 Difference]: Start difference. First operand 151 states and 228 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:40,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:41,735 INFO L93 Difference]: Finished difference Result 392 states and 600 transitions. [2022-03-20 12:23:41,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:41,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 12:23:41,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:41,737 INFO L225 Difference]: With dead ends: 392 [2022-03-20 12:23:41,737 INFO L226 Difference]: Without dead ends: 267 [2022-03-20 12:23:41,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:23:41,738 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 145 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:41,738 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 330 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 12:23:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-20 12:23:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 163. [2022-03-20 12:23:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.5253164556962024) internal successors, (241), 158 states have internal predecessors, (241), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 245 transitions. [2022-03-20 12:23:41,748 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 245 transitions. Word has length 63 [2022-03-20 12:23:41,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:41,749 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-03-20 12:23:41,749 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:41,749 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 245 transitions. [2022-03-20 12:23:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:23:41,750 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:41,750 INFO L499 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] [2022-03-20 12:23:41,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:23:41,750 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:41,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:41,751 INFO L85 PathProgramCache]: Analyzing trace with hash 481034020, now seen corresponding path program 1 times [2022-03-20 12:23:41,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:41,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823216753] [2022-03-20 12:23:41,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:41,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:41,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:41,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823216753] [2022-03-20 12:23:41,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823216753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:41,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:41,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:41,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604060445] [2022-03-20 12:23:41,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:41,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:41,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:41,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:41,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:41,911 INFO L87 Difference]: Start difference. First operand 163 states and 245 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:44,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:46,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:47,901 INFO L93 Difference]: Finished difference Result 314 states and 473 transitions. [2022-03-20 12:23:47,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:47,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 12:23:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:47,902 INFO L225 Difference]: With dead ends: 314 [2022-03-20 12:23:47,902 INFO L226 Difference]: Without dead ends: 177 [2022-03-20 12:23:47,903 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:23:47,903 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:47,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:23:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-03-20 12:23:47,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 163. [2022-03-20 12:23:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.518987341772152) internal successors, (240), 158 states have internal predecessors, (240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 244 transitions. [2022-03-20 12:23:47,910 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 244 transitions. Word has length 63 [2022-03-20 12:23:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:47,910 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 244 transitions. [2022-03-20 12:23:47,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 244 transitions. [2022-03-20 12:23:47,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:23:47,918 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:47,918 INFO L499 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] [2022-03-20 12:23:47,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:23:47,918 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:47,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:47,919 INFO L85 PathProgramCache]: Analyzing trace with hash 23157764, now seen corresponding path program 1 times [2022-03-20 12:23:47,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:47,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533639064] [2022-03-20 12:23:47,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:47,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:48,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:48,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533639064] [2022-03-20 12:23:48,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533639064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:48,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:48,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:48,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996091217] [2022-03-20 12:23:48,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:48,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:48,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:48,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:48,059 INFO L87 Difference]: Start difference. First operand 163 states and 244 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:49,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:50,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:52,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:23:52,966 INFO L93 Difference]: Finished difference Result 403 states and 614 transitions. [2022-03-20 12:23:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:23:52,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-20 12:23:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:23:52,967 INFO L225 Difference]: With dead ends: 403 [2022-03-20 12:23:52,967 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 12:23:52,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:23:52,968 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 138 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:23:52,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 332 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 12:23:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 12:23:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 169. [2022-03-20 12:23:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.524390243902439) internal successors, (250), 164 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 254 transitions. [2022-03-20 12:23:52,975 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 254 transitions. Word has length 63 [2022-03-20 12:23:52,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:23:52,976 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 254 transitions. [2022-03-20 12:23:52,976 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 254 transitions. [2022-03-20 12:23:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 12:23:52,977 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:23:52,977 INFO L499 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] [2022-03-20 12:23:52,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:23:52,977 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:23:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:23:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1832620047, now seen corresponding path program 1 times [2022-03-20 12:23:52,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:23:52,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368564858] [2022-03-20 12:23:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:23:52,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:23:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:23:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:23:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:23:53,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:23:53,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368564858] [2022-03-20 12:23:53,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368564858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:23:53,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:23:53,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:23:53,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145794992] [2022-03-20 12:23:53,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:23:53,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:23:53,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:23:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:23:53,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:23:53,111 INFO L87 Difference]: Start difference. First operand 169 states and 254 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:23:54,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:56,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:58,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:23:59,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:00,079 INFO L93 Difference]: Finished difference Result 325 states and 492 transitions. [2022-03-20 12:24:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:00,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 12:24:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:00,081 INFO L225 Difference]: With dead ends: 325 [2022-03-20 12:24:00,081 INFO L226 Difference]: Without dead ends: 182 [2022-03-20 12:24:00,081 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:00,082 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:00,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 12:24:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-03-20 12:24:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2022-03-20 12:24:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5182926829268293) internal successors, (249), 164 states have internal predecessors, (249), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 253 transitions. [2022-03-20 12:24:00,087 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 253 transitions. Word has length 64 [2022-03-20 12:24:00,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:00,087 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 253 transitions. [2022-03-20 12:24:00,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:00,087 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 253 transitions. [2022-03-20 12:24:00,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:24:00,088 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:00,088 INFO L499 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] [2022-03-20 12:24:00,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:24:00,089 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:00,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash -713470144, now seen corresponding path program 1 times [2022-03-20 12:24:00,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:00,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651865054] [2022-03-20 12:24:00,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:00,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:00,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:00,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:00,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:00,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651865054] [2022-03-20 12:24:00,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651865054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:00,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:00,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:00,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991086197] [2022-03-20 12:24:00,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:00,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:00,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:00,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:00,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:00,191 INFO L87 Difference]: Start difference. First operand 169 states and 253 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:03,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:05,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:07,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:07,444 INFO L93 Difference]: Finished difference Result 325 states and 491 transitions. [2022-03-20 12:24:07,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:07,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 12:24:07,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:07,446 INFO L225 Difference]: With dead ends: 325 [2022-03-20 12:24:07,446 INFO L226 Difference]: Without dead ends: 182 [2022-03-20 12:24:07,446 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:07,447 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 20 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:07,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:24:07,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-03-20 12:24:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2022-03-20 12:24:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5121951219512195) internal successors, (248), 164 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 252 transitions. [2022-03-20 12:24:07,451 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 252 transitions. Word has length 65 [2022-03-20 12:24:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:07,451 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 252 transitions. [2022-03-20 12:24:07,452 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 252 transitions. [2022-03-20 12:24:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:24:07,452 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:07,452 INFO L499 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] [2022-03-20 12:24:07,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:24:07,453 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:07,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:07,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1587929332, now seen corresponding path program 1 times [2022-03-20 12:24:07,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:07,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991925676] [2022-03-20 12:24:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:07,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:07,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:07,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991925676] [2022-03-20 12:24:07,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991925676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:07,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:07,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:07,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243824935] [2022-03-20 12:24:07,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:07,561 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:07,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:07,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:07,562 INFO L87 Difference]: Start difference. First operand 169 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:09,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:11,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:13,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:13,336 INFO L93 Difference]: Finished difference Result 315 states and 477 transitions. [2022-03-20 12:24:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:13,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 12:24:13,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:13,337 INFO L225 Difference]: With dead ends: 315 [2022-03-20 12:24:13,337 INFO L226 Difference]: Without dead ends: 172 [2022-03-20 12:24:13,338 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:13,338 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:13,338 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 493 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:24:13,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-20 12:24:13,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-03-20 12:24:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5060975609756098) internal successors, (247), 164 states have internal predecessors, (247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:13,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 251 transitions. [2022-03-20 12:24:13,342 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 251 transitions. Word has length 66 [2022-03-20 12:24:13,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:13,342 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 251 transitions. [2022-03-20 12:24:13,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:13,343 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 251 transitions. [2022-03-20 12:24:13,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:24:13,343 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:13,343 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:13,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:24:13,344 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:13,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:13,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1876070787, now seen corresponding path program 1 times [2022-03-20 12:24:13,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:13,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301425666] [2022-03-20 12:24:13,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:13,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:13,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:13,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301425666] [2022-03-20 12:24:13,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301425666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:13,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:13,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:13,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223123194] [2022-03-20 12:24:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:13,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:13,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:13,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:13,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:13,455 INFO L87 Difference]: Start difference. First operand 169 states and 251 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:16,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:17,370 INFO L93 Difference]: Finished difference Result 428 states and 650 transitions. [2022-03-20 12:24:17,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 12:24:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:17,372 INFO L225 Difference]: With dead ends: 428 [2022-03-20 12:24:17,372 INFO L226 Difference]: Without dead ends: 285 [2022-03-20 12:24:17,395 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:17,395 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 117 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:17,395 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 12:24:17,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-20 12:24:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 209. [2022-03-20 12:24:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5588235294117647) internal successors, (318), 204 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 322 transitions. [2022-03-20 12:24:17,401 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 322 transitions. Word has length 66 [2022-03-20 12:24:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:17,401 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 322 transitions. [2022-03-20 12:24:17,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 322 transitions. [2022-03-20 12:24:17,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 12:24:17,402 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:17,402 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:17,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:24:17,402 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2000777135, now seen corresponding path program 1 times [2022-03-20 12:24:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:17,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128269488] [2022-03-20 12:24:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:17,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:17,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128269488] [2022-03-20 12:24:17,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128269488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:17,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:17,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:17,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095429768] [2022-03-20 12:24:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:17,509 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:17,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:17,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:17,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:17,509 INFO L87 Difference]: Start difference. First operand 209 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:20,995 INFO L93 Difference]: Finished difference Result 434 states and 677 transitions. [2022-03-20 12:24:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:20,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 12:24:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:20,996 INFO L225 Difference]: With dead ends: 434 [2022-03-20 12:24:20,996 INFO L226 Difference]: Without dead ends: 251 [2022-03-20 12:24:20,997 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:20,997 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:20,997 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 493 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 12:24:20,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-03-20 12:24:21,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 231. [2022-03-20 12:24:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 226 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2022-03-20 12:24:21,002 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 67 [2022-03-20 12:24:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:21,003 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2022-03-20 12:24:21,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2022-03-20 12:24:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-20 12:24:21,004 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:21,004 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:21,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:24:21,004 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:21,004 INFO L85 PathProgramCache]: Analyzing trace with hash 790176540, now seen corresponding path program 1 times [2022-03-20 12:24:21,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:21,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589334051] [2022-03-20 12:24:21,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:21,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:21,109 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:21,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:21,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589334051] [2022-03-20 12:24:21,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589334051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:21,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:21,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:21,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225467450] [2022-03-20 12:24:21,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:21,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:21,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:21,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:21,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:21,111 INFO L87 Difference]: Start difference. First operand 231 states and 358 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:23,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:23,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:23,547 INFO L93 Difference]: Finished difference Result 456 states and 712 transitions. [2022-03-20 12:24:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:23,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-03-20 12:24:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:23,549 INFO L225 Difference]: With dead ends: 456 [2022-03-20 12:24:23,549 INFO L226 Difference]: Without dead ends: 251 [2022-03-20 12:24:23,549 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:23,550 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 37 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:23,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 493 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:24:23,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-03-20 12:24:23,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 231. [2022-03-20 12:24:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5619469026548674) internal successors, (353), 226 states have internal predecessors, (353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 357 transitions. [2022-03-20 12:24:23,555 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 357 transitions. Word has length 80 [2022-03-20 12:24:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:23,555 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 357 transitions. [2022-03-20 12:24:23,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:23,555 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 357 transitions. [2022-03-20 12:24:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 12:24:23,556 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:23,556 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:23,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:24:23,556 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:23,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:23,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1536312119, now seen corresponding path program 1 times [2022-03-20 12:24:23,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:23,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730210622] [2022-03-20 12:24:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:23,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:24:23,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:23,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730210622] [2022-03-20 12:24:23,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730210622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:23,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:23,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:23,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854828367] [2022-03-20 12:24:23,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:23,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:23,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:23,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:23,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:23,644 INFO L87 Difference]: Start difference. First operand 231 states and 357 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:25,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:27,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:29,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:29,971 INFO L93 Difference]: Finished difference Result 465 states and 726 transitions. [2022-03-20 12:24:29,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:29,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-20 12:24:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:29,973 INFO L225 Difference]: With dead ends: 465 [2022-03-20 12:24:29,973 INFO L226 Difference]: Without dead ends: 260 [2022-03-20 12:24:29,973 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:29,974 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:29,974 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 564 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 12:24:29,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-20 12:24:29,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 247. [2022-03-20 12:24:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.56198347107438) internal successors, (378), 242 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:29,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2022-03-20 12:24:29,979 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 81 [2022-03-20 12:24:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:29,979 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2022-03-20 12:24:29,979 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2022-03-20 12:24:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 12:24:29,980 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:29,980 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:29,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:24:29,980 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:29,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:29,980 INFO L85 PathProgramCache]: Analyzing trace with hash 347046185, now seen corresponding path program 1 times [2022-03-20 12:24:29,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:29,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994774724] [2022-03-20 12:24:29,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:29,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:30,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:30,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:30,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994774724] [2022-03-20 12:24:30,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994774724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:30,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:30,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437595008] [2022-03-20 12:24:30,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:30,108 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:30,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:30,109 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:31,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:32,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:34,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:35,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:35,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:35,820 INFO L93 Difference]: Finished difference Result 565 states and 882 transitions. [2022-03-20 12:24:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:35,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-20 12:24:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:35,822 INFO L225 Difference]: With dead ends: 565 [2022-03-20 12:24:35,822 INFO L226 Difference]: Without dead ends: 344 [2022-03-20 12:24:35,822 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:35,823 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 139 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:35,823 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 12:24:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-03-20 12:24:35,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 247. [2022-03-20 12:24:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 379 transitions. [2022-03-20 12:24:35,831 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 379 transitions. Word has length 81 [2022-03-20 12:24:35,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:35,831 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 379 transitions. [2022-03-20 12:24:35,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:35,832 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 379 transitions. [2022-03-20 12:24:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 12:24:35,832 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:35,833 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:35,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:24:35,833 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:35,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:35,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1259335863, now seen corresponding path program 1 times [2022-03-20 12:24:35,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:35,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463748933] [2022-03-20 12:24:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:35,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 12:24:35,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:35,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463748933] [2022-03-20 12:24:35,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463748933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:35,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:35,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:24:35,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272279224] [2022-03-20 12:24:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:35,976 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:24:35,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:35,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:24:35,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:35,976 INFO L87 Difference]: Start difference. First operand 247 states and 379 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:39,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:41,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:41,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:41,930 INFO L93 Difference]: Finished difference Result 477 states and 740 transitions. [2022-03-20 12:24:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 12:24:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 12:24:41,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:41,931 INFO L225 Difference]: With dead ends: 477 [2022-03-20 12:24:41,931 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 12:24:41,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:24:41,932 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:41,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 12:24:41,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 12:24:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-03-20 12:24:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5378486055776892) internal successors, (386), 251 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:41,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 390 transitions. [2022-03-20 12:24:41,937 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 390 transitions. Word has length 82 [2022-03-20 12:24:41,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:41,937 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 390 transitions. [2022-03-20 12:24:41,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:41,937 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 390 transitions. [2022-03-20 12:24:41,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:24:41,938 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:41,938 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:41,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:24:41,938 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 577429668, now seen corresponding path program 1 times [2022-03-20 12:24:41,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:41,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589566764] [2022-03-20 12:24:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:41,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:42,052 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:42,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:42,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589566764] [2022-03-20 12:24:42,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589566764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:42,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:42,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:42,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754208928] [2022-03-20 12:24:42,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:42,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:42,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:42,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:42,056 INFO L87 Difference]: Start difference. First operand 256 states and 390 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:44,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:45,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:45,970 INFO L93 Difference]: Finished difference Result 513 states and 785 transitions. [2022-03-20 12:24:45,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:45,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 12:24:45,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:45,972 INFO L225 Difference]: With dead ends: 513 [2022-03-20 12:24:45,972 INFO L226 Difference]: Without dead ends: 283 [2022-03-20 12:24:45,972 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:45,973 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 38 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:45,973 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 497 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 12:24:45,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-20 12:24:45,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 256. [2022-03-20 12:24:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-03-20 12:24:45,978 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 83 [2022-03-20 12:24:45,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:45,978 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-03-20 12:24:45,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-03-20 12:24:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:24:45,978 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:45,979 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:45,979 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:24:45,979 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:45,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:45,980 INFO L85 PathProgramCache]: Analyzing trace with hash 744830387, now seen corresponding path program 1 times [2022-03-20 12:24:45,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:45,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478255325] [2022-03-20 12:24:45,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:45,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:46,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:46,069 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:46,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:46,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478255325] [2022-03-20 12:24:46,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478255325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:46,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:46,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:46,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073514641] [2022-03-20 12:24:46,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:46,069 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:46,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:46,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:46,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:46,070 INFO L87 Difference]: Start difference. First operand 256 states and 389 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:47,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:50,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:50,620 INFO L93 Difference]: Finished difference Result 592 states and 907 transitions. [2022-03-20 12:24:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:50,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 12:24:50,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:50,622 INFO L225 Difference]: With dead ends: 592 [2022-03-20 12:24:50,622 INFO L226 Difference]: Without dead ends: 362 [2022-03-20 12:24:50,623 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:50,623 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 141 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:50,623 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 12:24:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-20 12:24:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 256. [2022-03-20 12:24:50,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-03-20 12:24:50,629 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 84 [2022-03-20 12:24:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:50,629 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-03-20 12:24:50,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-03-20 12:24:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 12:24:50,630 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:50,630 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:50,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:24:50,630 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:50,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 253061153, now seen corresponding path program 1 times [2022-03-20 12:24:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:50,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195884838] [2022-03-20 12:24:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:50,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:50,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195884838] [2022-03-20 12:24:50,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195884838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:50,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:50,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:24:50,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141846146] [2022-03-20 12:24:50,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:50,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:24:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:50,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:24:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:24:50,733 INFO L87 Difference]: Start difference. First operand 256 states and 385 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:52,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:54,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:56,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:58,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:24:58,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:24:58,503 INFO L93 Difference]: Finished difference Result 503 states and 762 transitions. [2022-03-20 12:24:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:24:58,504 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 85 [2022-03-20 12:24:58,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:24:58,505 INFO L225 Difference]: With dead ends: 503 [2022-03-20 12:24:58,505 INFO L226 Difference]: Without dead ends: 273 [2022-03-20 12:24:58,505 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:24:58,506 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:24:58,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-20 12:24:58,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-20 12:24:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 256. [2022-03-20 12:24:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5139442231075697) internal successors, (380), 251 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2022-03-20 12:24:58,511 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 85 [2022-03-20 12:24:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:24:58,511 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2022-03-20 12:24:58,511 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:24:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2022-03-20 12:24:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-20 12:24:58,512 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:24:58,512 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:24:58,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:24:58,512 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:24:58,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:24:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1425775569, now seen corresponding path program 1 times [2022-03-20 12:24:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:24:58,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192442239] [2022-03-20 12:24:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:24:58,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:24:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:24:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:24:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:24:58,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:24:58,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192442239] [2022-03-20 12:24:58,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192442239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:24:58,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:24:58,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:24:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478214699] [2022-03-20 12:24:58,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:24:58,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:24:58,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:24:58,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:24:58,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:24:58,609 INFO L87 Difference]: Start difference. First operand 256 states and 384 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) [2022-03-20 12:25:00,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:00,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:00,997 INFO L93 Difference]: Finished difference Result 711 states and 1087 transitions. [2022-03-20 12:25:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:25:00,998 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 89 [2022-03-20 12:25:00,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:00,999 INFO L225 Difference]: With dead ends: 711 [2022-03-20 12:25:00,999 INFO L226 Difference]: Without dead ends: 481 [2022-03-20 12:25:01,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:25:01,000 INFO L913 BasicCegarLoop]: 337 mSDtfsCounter, 159 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:01,000 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 531 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:25:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-03-20 12:25:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-03-20 12:25:01,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5147058823529411) internal successors, (721), 476 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:01,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 725 transitions. [2022-03-20 12:25:01,008 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 725 transitions. Word has length 89 [2022-03-20 12:25:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:01,009 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 725 transitions. [2022-03-20 12:25:01,009 INFO L479 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) [2022-03-20 12:25:01,009 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 725 transitions. [2022-03-20 12:25:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-20 12:25:01,010 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:01,010 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:01,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:25:01,010 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:01,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:01,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1874472208, now seen corresponding path program 1 times [2022-03-20 12:25:01,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:01,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989302603] [2022-03-20 12:25:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:01,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989302603] [2022-03-20 12:25:01,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989302603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:01,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:01,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56114614] [2022-03-20 12:25:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:01,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:01,099 INFO L87 Difference]: Start difference. First operand 481 states and 725 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:03,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:03,546 INFO L93 Difference]: Finished difference Result 1144 states and 1728 transitions. [2022-03-20 12:25:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-20 12:25:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:03,549 INFO L225 Difference]: With dead ends: 1144 [2022-03-20 12:25:03,549 INFO L226 Difference]: Without dead ends: 689 [2022-03-20 12:25:03,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:03,569 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 114 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:03,569 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 352 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:25:03,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-03-20 12:25:03,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 525. [2022-03-20 12:25:03,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 520 states have (on average 1.551923076923077) internal successors, (807), 520 states have internal predecessors, (807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 811 transitions. [2022-03-20 12:25:03,582 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 811 transitions. Word has length 89 [2022-03-20 12:25:03,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:03,582 INFO L478 AbstractCegarLoop]: Abstraction has 525 states and 811 transitions. [2022-03-20 12:25:03,582 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:03,582 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 811 transitions. [2022-03-20 12:25:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 12:25:03,585 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:03,585 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:03,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:25:03,585 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:03,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1992106647, now seen corresponding path program 1 times [2022-03-20 12:25:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:03,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088654490] [2022-03-20 12:25:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:03,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:03,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088654490] [2022-03-20 12:25:03,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088654490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:03,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:03,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:03,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758273470] [2022-03-20 12:25:03,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:03,679 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:03,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:03,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:03,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:03,680 INFO L87 Difference]: Start difference. First operand 525 states and 811 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:04,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:06,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:08,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:10,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:10,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:10,549 INFO L93 Difference]: Finished difference Result 1229 states and 1892 transitions. [2022-03-20 12:25:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:10,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 12:25:10,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:10,552 INFO L225 Difference]: With dead ends: 1229 [2022-03-20 12:25:10,552 INFO L226 Difference]: Without dead ends: 730 [2022-03-20 12:25:10,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:10,553 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 86 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:10,553 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 497 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 12:25:10,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-03-20 12:25:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 592. [2022-03-20 12:25:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 587 states have (on average 1.5638841567291313) internal successors, (918), 587 states have internal predecessors, (918), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 922 transitions. [2022-03-20 12:25:10,573 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 922 transitions. Word has length 117 [2022-03-20 12:25:10,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:10,573 INFO L478 AbstractCegarLoop]: Abstraction has 592 states and 922 transitions. [2022-03-20 12:25:10,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:10,573 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 922 transitions. [2022-03-20 12:25:10,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 12:25:10,574 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:10,574 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:10,575 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:25:10,575 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:10,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:10,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2056547562, now seen corresponding path program 1 times [2022-03-20 12:25:10,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:10,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677354960] [2022-03-20 12:25:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:10,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:10,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 12:25:10,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:10,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677354960] [2022-03-20 12:25:10,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677354960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:10,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:10,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:10,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886855088] [2022-03-20 12:25:10,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:10,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:10,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:10,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:10,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:10,711 INFO L87 Difference]: Start difference. First operand 592 states and 922 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:11,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:13,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:15,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:16,341 INFO L93 Difference]: Finished difference Result 1216 states and 1896 transitions. [2022-03-20 12:25:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 12:25:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:16,346 INFO L225 Difference]: With dead ends: 1216 [2022-03-20 12:25:16,346 INFO L226 Difference]: Without dead ends: 650 [2022-03-20 12:25:16,347 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:16,347 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 36 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:16,347 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 591 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 12:25:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-03-20 12:25:16,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 616. [2022-03-20 12:25:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 611 states have (on average 1.5646481178396072) internal successors, (956), 611 states have internal predecessors, (956), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 960 transitions. [2022-03-20 12:25:16,358 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 960 transitions. Word has length 117 [2022-03-20 12:25:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:16,358 INFO L478 AbstractCegarLoop]: Abstraction has 616 states and 960 transitions. [2022-03-20 12:25:16,358 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 960 transitions. [2022-03-20 12:25:16,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 12:25:16,360 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:16,360 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:16,360 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:25:16,360 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:16,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:16,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-03-20 12:25:16,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:16,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488270635] [2022-03-20 12:25:16,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:16,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:16,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:16,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488270635] [2022-03-20 12:25:16,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488270635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:16,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:16,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:16,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335835338] [2022-03-20 12:25:16,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:16,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:16,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:16,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:16,463 INFO L87 Difference]: Start difference. First operand 616 states and 960 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:18,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:18,936 INFO L93 Difference]: Finished difference Result 1450 states and 2248 transitions. [2022-03-20 12:25:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 12:25:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:18,939 INFO L225 Difference]: With dead ends: 1450 [2022-03-20 12:25:18,939 INFO L226 Difference]: Without dead ends: 860 [2022-03-20 12:25:18,940 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:18,940 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 116 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:18,940 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:25:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-03-20 12:25:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 690. [2022-03-20 12:25:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 685 states have (on average 1.5795620437956204) internal successors, (1082), 685 states have internal predecessors, (1082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1086 transitions. [2022-03-20 12:25:18,953 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1086 transitions. Word has length 122 [2022-03-20 12:25:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:18,954 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 1086 transitions. [2022-03-20 12:25:18,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:18,954 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1086 transitions. [2022-03-20 12:25:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 12:25:18,955 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:18,955 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:18,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:25:18,955 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash 185272698, now seen corresponding path program 1 times [2022-03-20 12:25:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:18,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657812121] [2022-03-20 12:25:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:19,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-03-20 12:25:19,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:19,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657812121] [2022-03-20 12:25:19,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657812121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:19,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:19,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:25:19,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632418144] [2022-03-20 12:25:19,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:19,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:25:19,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:19,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:25:19,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:25:19,033 INFO L87 Difference]: Start difference. First operand 690 states and 1086 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:20,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:22,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:24,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:24,433 INFO L93 Difference]: Finished difference Result 1356 states and 2145 transitions. [2022-03-20 12:25:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:25:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 12:25:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:24,435 INFO L225 Difference]: With dead ends: 1356 [2022-03-20 12:25:24,435 INFO L226 Difference]: Without dead ends: 692 [2022-03-20 12:25:24,436 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:25:24,436 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:24,437 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:25:24,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-03-20 12:25:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2022-03-20 12:25:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.5778748180494906) internal successors, (1084), 687 states have internal predecessors, (1084), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1088 transitions. [2022-03-20 12:25:24,448 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1088 transitions. Word has length 122 [2022-03-20 12:25:24,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:24,448 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1088 transitions. [2022-03-20 12:25:24,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1088 transitions. [2022-03-20 12:25:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 12:25:24,450 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:24,450 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:24,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:25:24,450 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:24,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:24,450 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-03-20 12:25:24,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:24,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705128895] [2022-03-20 12:25:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:24,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:24,579 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:24,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:24,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705128895] [2022-03-20 12:25:24,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705128895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:24,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:24,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721226437] [2022-03-20 12:25:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:24,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:24,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:24,580 INFO L87 Difference]: Start difference. First operand 692 states and 1088 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:27,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:28,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:30,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:30,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:30,932 INFO L93 Difference]: Finished difference Result 1490 states and 2325 transitions. [2022-03-20 12:25:30,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:30,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 12:25:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:30,935 INFO L225 Difference]: With dead ends: 1490 [2022-03-20 12:25:30,935 INFO L226 Difference]: Without dead ends: 826 [2022-03-20 12:25:30,936 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:30,936 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 77 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:30,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 497 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 12:25:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-03-20 12:25:30,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 704. [2022-03-20 12:25:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5793991416309012) internal successors, (1104), 699 states have internal predecessors, (1104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1108 transitions. [2022-03-20 12:25:30,948 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1108 transitions. Word has length 123 [2022-03-20 12:25:30,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:30,948 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1108 transitions. [2022-03-20 12:25:30,949 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1108 transitions. [2022-03-20 12:25:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 12:25:30,950 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:30,950 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:30,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:25:30,950 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:30,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:30,951 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-03-20 12:25:30,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:30,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933245554] [2022-03-20 12:25:30,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:30,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:25:31,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:31,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933245554] [2022-03-20 12:25:31,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933245554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:31,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:31,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:31,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429943901] [2022-03-20 12:25:31,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:31,082 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:31,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:31,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:31,084 INFO L87 Difference]: Start difference. First operand 704 states and 1108 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:32,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:34,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:36,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:37,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:37,444 INFO L93 Difference]: Finished difference Result 1498 states and 2339 transitions. [2022-03-20 12:25:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:37,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-20 12:25:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:37,446 INFO L225 Difference]: With dead ends: 1498 [2022-03-20 12:25:37,446 INFO L226 Difference]: Without dead ends: 822 [2022-03-20 12:25:37,448 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:37,448 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 98 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:37,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 493 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 518 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 12:25:37,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-03-20 12:25:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 704. [2022-03-20 12:25:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5765379113018598) internal successors, (1102), 699 states have internal predecessors, (1102), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1106 transitions. [2022-03-20 12:25:37,482 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1106 transitions. Word has length 130 [2022-03-20 12:25:37,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:37,483 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1106 transitions. [2022-03-20 12:25:37,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:37,483 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1106 transitions. [2022-03-20 12:25:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 12:25:37,486 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:37,486 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:37,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:25:37,487 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:37,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash 129890131, now seen corresponding path program 1 times [2022-03-20 12:25:37,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:37,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336851751] [2022-03-20 12:25:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:37,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:25:37,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:37,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336851751] [2022-03-20 12:25:37,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336851751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:37,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:37,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:37,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169328698] [2022-03-20 12:25:37,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:37,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:37,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:37,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:37,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:37,596 INFO L87 Difference]: Start difference. First operand 704 states and 1106 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:38,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:40,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:41,878 INFO L93 Difference]: Finished difference Result 1412 states and 2221 transitions. [2022-03-20 12:25:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-20 12:25:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:41,880 INFO L225 Difference]: With dead ends: 1412 [2022-03-20 12:25:41,880 INFO L226 Difference]: Without dead ends: 736 [2022-03-20 12:25:41,881 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:41,881 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:41,882 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 12:25:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-03-20 12:25:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 704. [2022-03-20 12:25:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5751072961373391) internal successors, (1101), 699 states have internal predecessors, (1101), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1105 transitions. [2022-03-20 12:25:41,892 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1105 transitions. Word has length 130 [2022-03-20 12:25:41,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:41,892 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1105 transitions. [2022-03-20 12:25:41,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1105 transitions. [2022-03-20 12:25:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 12:25:41,894 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:41,894 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:41,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:25:41,894 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:41,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-03-20 12:25:41,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:41,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918233749] [2022-03-20 12:25:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:41,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:41,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:41,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918233749] [2022-03-20 12:25:41,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918233749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:41,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:41,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:41,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373096859] [2022-03-20 12:25:41,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:41,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:41,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:41,986 INFO L87 Difference]: Start difference. First operand 704 states and 1105 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:43,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:45,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:47,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:48,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:48,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:48,916 INFO L93 Difference]: Finished difference Result 1624 states and 2534 transitions. [2022-03-20 12:25:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:48,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 12:25:48,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:48,919 INFO L225 Difference]: With dead ends: 1624 [2022-03-20 12:25:48,919 INFO L226 Difference]: Without dead ends: 948 [2022-03-20 12:25:48,920 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:48,920 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 109 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:48,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 347 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 12:25:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2022-03-20 12:25:48,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 790. [2022-03-20 12:25:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 785 states have (on average 1.5885350318471338) internal successors, (1247), 785 states have internal predecessors, (1247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:48,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1251 transitions. [2022-03-20 12:25:48,932 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1251 transitions. Word has length 131 [2022-03-20 12:25:48,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:48,933 INFO L478 AbstractCegarLoop]: Abstraction has 790 states and 1251 transitions. [2022-03-20 12:25:48,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:48,933 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1251 transitions. [2022-03-20 12:25:48,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 12:25:48,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:48,934 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:48,934 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:25:48,934 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:48,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:48,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-03-20 12:25:48,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:48,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954414471] [2022-03-20 12:25:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:48,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:25:49,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:49,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954414471] [2022-03-20 12:25:49,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954414471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:49,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:49,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:49,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146205369] [2022-03-20 12:25:49,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:49,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:49,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:49,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:49,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:49,024 INFO L87 Difference]: Start difference. First operand 790 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:51,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:53,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:25:54,169 INFO L93 Difference]: Finished difference Result 1716 states and 2690 transitions. [2022-03-20 12:25:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:25:54,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 12:25:54,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:25:54,172 INFO L225 Difference]: With dead ends: 1716 [2022-03-20 12:25:54,172 INFO L226 Difference]: Without dead ends: 950 [2022-03-20 12:25:54,174 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:25:54,175 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:25:54,175 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 362 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 12:25:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-03-20 12:25:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 794. [2022-03-20 12:25:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.58808618504436) internal successors, (1253), 789 states have internal predecessors, (1253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:54,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1257 transitions. [2022-03-20 12:25:54,200 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1257 transitions. Word has length 132 [2022-03-20 12:25:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:25:54,200 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1257 transitions. [2022-03-20 12:25:54,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1257 transitions. [2022-03-20 12:25:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 12:25:54,202 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:25:54,202 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:25:54,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:25:54,203 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:25:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:25:54,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2112101086, now seen corresponding path program 1 times [2022-03-20 12:25:54,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:25:54,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30855369] [2022-03-20 12:25:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:25:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:25:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:25:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:25:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:25:54,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:25:54,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30855369] [2022-03-20 12:25:54,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30855369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:25:54,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:25:54,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:25:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817484383] [2022-03-20 12:25:54,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:25:54,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:25:54,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:25:54,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:25:54,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:25:54,311 INFO L87 Difference]: Start difference. First operand 794 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:25:57,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:25:59,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:00,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:00,289 INFO L93 Difference]: Finished difference Result 1666 states and 2619 transitions. [2022-03-20 12:26:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:00,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 12:26:00,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:00,293 INFO L225 Difference]: With dead ends: 1666 [2022-03-20 12:26:00,293 INFO L226 Difference]: Without dead ends: 900 [2022-03-20 12:26:00,308 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:00,308 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 91 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:00,309 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 497 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 511 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 12:26:00,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-03-20 12:26:00,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 794. [2022-03-20 12:26:00,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.585551330798479) internal successors, (1251), 789 states have internal predecessors, (1251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:00,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1255 transitions. [2022-03-20 12:26:00,336 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1255 transitions. Word has length 133 [2022-03-20 12:26:00,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:00,336 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1255 transitions. [2022-03-20 12:26:00,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1255 transitions. [2022-03-20 12:26:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 12:26:00,337 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:00,338 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:00,338 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:26:00,338 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 902858847, now seen corresponding path program 1 times [2022-03-20 12:26:00,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:00,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39621199] [2022-03-20 12:26:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:00,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:00,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:00,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:00,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39621199] [2022-03-20 12:26:00,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39621199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:00,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:00,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:00,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455034286] [2022-03-20 12:26:00,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:00,449 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:00,450 INFO L87 Difference]: Start difference. First operand 794 states and 1255 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:02,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:02,891 INFO L93 Difference]: Finished difference Result 1716 states and 2684 transitions. [2022-03-20 12:26:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:02,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 12:26:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:02,894 INFO L225 Difference]: With dead ends: 1716 [2022-03-20 12:26:02,894 INFO L226 Difference]: Without dead ends: 950 [2022-03-20 12:26:02,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:02,895 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 138 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:02,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 366 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-03-20 12:26:02,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 794. [2022-03-20 12:26:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5716096324461344) internal successors, (1240), 789 states have internal predecessors, (1240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1244 transitions. [2022-03-20 12:26:02,908 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1244 transitions. Word has length 133 [2022-03-20 12:26:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:02,908 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1244 transitions. [2022-03-20 12:26:02,908 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1244 transitions. [2022-03-20 12:26:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 12:26:02,910 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:02,910 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:02,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:26:02,910 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:02,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1575731045, now seen corresponding path program 1 times [2022-03-20 12:26:02,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:02,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275722036] [2022-03-20 12:26:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:02,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:02,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:02,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:02,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275722036] [2022-03-20 12:26:02,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275722036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:02,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:02,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:02,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684077338] [2022-03-20 12:26:02,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:03,017 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:03,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:03,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:03,017 INFO L87 Difference]: Start difference. First operand 794 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:05,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:06,542 INFO L93 Difference]: Finished difference Result 1646 states and 2567 transitions. [2022-03-20 12:26:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:06,542 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 135 [2022-03-20 12:26:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:06,544 INFO L225 Difference]: With dead ends: 1646 [2022-03-20 12:26:06,545 INFO L226 Difference]: Without dead ends: 880 [2022-03-20 12:26:06,545 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:06,546 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 87 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:06,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 493 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 12:26:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-03-20 12:26:06,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 794. [2022-03-20 12:26:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5690747782002534) internal successors, (1238), 789 states have internal predecessors, (1238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:06,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1242 transitions. [2022-03-20 12:26:06,559 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1242 transitions. Word has length 135 [2022-03-20 12:26:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:06,559 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1242 transitions. [2022-03-20 12:26:06,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:06,559 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1242 transitions. [2022-03-20 12:26:06,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 12:26:06,561 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:06,561 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:06,561 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 12:26:06,561 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 278614492, now seen corresponding path program 1 times [2022-03-20 12:26:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:06,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847500954] [2022-03-20 12:26:06,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:06,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:06,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847500954] [2022-03-20 12:26:06,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847500954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:06,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:06,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:06,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297061392] [2022-03-20 12:26:06,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:06,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:06,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:06,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:06,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:06,648 INFO L87 Difference]: Start difference. First operand 794 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:08,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:09,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:11,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:12,346 INFO L93 Difference]: Finished difference Result 1696 states and 2632 transitions. [2022-03-20 12:26:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:12,346 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 135 [2022-03-20 12:26:12,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:12,348 INFO L225 Difference]: With dead ends: 1696 [2022-03-20 12:26:12,348 INFO L226 Difference]: Without dead ends: 930 [2022-03-20 12:26:12,349 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:12,350 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:12,350 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 368 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 12:26:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-03-20 12:26:12,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 794. [2022-03-20 12:26:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5551330798479088) internal successors, (1227), 789 states have internal predecessors, (1227), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1231 transitions. [2022-03-20 12:26:12,362 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1231 transitions. Word has length 135 [2022-03-20 12:26:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:12,362 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1231 transitions. [2022-03-20 12:26:12,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:12,362 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1231 transitions. [2022-03-20 12:26:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 12:26:12,363 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:12,364 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:12,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 12:26:12,364 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash 173200331, now seen corresponding path program 1 times [2022-03-20 12:26:12,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:12,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227340645] [2022-03-20 12:26:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:12,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:12,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:12,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:12,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227340645] [2022-03-20 12:26:12,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227340645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:12,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:12,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:12,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112730011] [2022-03-20 12:26:12,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:12,450 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:12,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:12,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:12,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:12,451 INFO L87 Difference]: Start difference. First operand 794 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:14,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:14,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:14,894 INFO L93 Difference]: Finished difference Result 1646 states and 2541 transitions. [2022-03-20 12:26:14,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:14,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-20 12:26:14,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:14,896 INFO L225 Difference]: With dead ends: 1646 [2022-03-20 12:26:14,896 INFO L226 Difference]: Without dead ends: 880 [2022-03-20 12:26:14,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:14,897 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:14,898 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 505 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-03-20 12:26:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 794. [2022-03-20 12:26:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5525982256020279) internal successors, (1225), 789 states have internal predecessors, (1225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:14,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1229 transitions. [2022-03-20 12:26:14,909 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1229 transitions. Word has length 139 [2022-03-20 12:26:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:14,910 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1229 transitions. [2022-03-20 12:26:14,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1229 transitions. [2022-03-20 12:26:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 12:26:14,911 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:14,911 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:14,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 12:26:14,911 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash -797090676, now seen corresponding path program 1 times [2022-03-20 12:26:14,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:14,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314795387] [2022-03-20 12:26:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:14,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 12:26:14,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:14,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314795387] [2022-03-20 12:26:14,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314795387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:14,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:14,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:14,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589497176] [2022-03-20 12:26:14,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:14,999 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:14,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:15,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:15,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:15,000 INFO L87 Difference]: Start difference. First operand 794 states and 1229 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:16,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:18,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:20,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:20,917 INFO L93 Difference]: Finished difference Result 1660 states and 2567 transitions. [2022-03-20 12:26:20,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:20,918 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 139 [2022-03-20 12:26:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:20,920 INFO L225 Difference]: With dead ends: 1660 [2022-03-20 12:26:20,920 INFO L226 Difference]: Without dead ends: 894 [2022-03-20 12:26:20,921 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:20,921 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 36 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:20,921 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 589 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 12:26:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-03-20 12:26:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 846. [2022-03-20 12:26:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 841 states have (on average 1.5517241379310345) internal successors, (1305), 841 states have internal predecessors, (1305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:20,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1309 transitions. [2022-03-20 12:26:20,958 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1309 transitions. Word has length 139 [2022-03-20 12:26:20,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:20,958 INFO L478 AbstractCegarLoop]: Abstraction has 846 states and 1309 transitions. [2022-03-20 12:26:20,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1309 transitions. [2022-03-20 12:26:20,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-20 12:26:20,960 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:20,960 INFO L499 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] [2022-03-20 12:26:20,960 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 12:26:20,960 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:20,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:20,969 INFO L85 PathProgramCache]: Analyzing trace with hash 571689233, now seen corresponding path program 1 times [2022-03-20 12:26:20,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:20,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439016768] [2022-03-20 12:26:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:20,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:21,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:21,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439016768] [2022-03-20 12:26:21,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439016768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:21,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:21,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:21,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116291978] [2022-03-20 12:26:21,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:21,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:21,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:21,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:21,061 INFO L87 Difference]: Start difference. First operand 846 states and 1309 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:23,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:23,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:23,496 INFO L93 Difference]: Finished difference Result 1884 states and 2904 transitions. [2022-03-20 12:26:23,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:23,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-03-20 12:26:23,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:23,499 INFO L225 Difference]: With dead ends: 1884 [2022-03-20 12:26:23,499 INFO L226 Difference]: Without dead ends: 1066 [2022-03-20 12:26:23,500 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:23,501 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 120 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:23,501 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:23,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-03-20 12:26:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 902. [2022-03-20 12:26:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.544035674470457) internal successors, (1385), 897 states have internal predecessors, (1385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1389 transitions. [2022-03-20 12:26:23,515 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1389 transitions. Word has length 142 [2022-03-20 12:26:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:23,515 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1389 transitions. [2022-03-20 12:26:23,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1389 transitions. [2022-03-20 12:26:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 12:26:23,517 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:23,517 INFO L499 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] [2022-03-20 12:26:23,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 12:26:23,517 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2124952577, now seen corresponding path program 1 times [2022-03-20 12:26:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:23,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7409992] [2022-03-20 12:26:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:23,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:23,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:23,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7409992] [2022-03-20 12:26:23,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7409992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:23,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:23,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:23,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573754420] [2022-03-20 12:26:23,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:23,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:23,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:23,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:23,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:23,624 INFO L87 Difference]: Start difference. First operand 902 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:25,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:27,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:29,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:31,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:31,727 INFO L93 Difference]: Finished difference Result 1846 states and 2831 transitions. [2022-03-20 12:26:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:31,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-20 12:26:31,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:31,729 INFO L225 Difference]: With dead ends: 1846 [2022-03-20 12:26:31,729 INFO L226 Difference]: Without dead ends: 972 [2022-03-20 12:26:31,730 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:31,731 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 61 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:31,731 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 523 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 491 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 12:26:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-03-20 12:26:31,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 902. [2022-03-20 12:26:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.5418060200668897) internal successors, (1383), 897 states have internal predecessors, (1383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1387 transitions. [2022-03-20 12:26:31,765 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1387 transitions. Word has length 143 [2022-03-20 12:26:31,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:31,765 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1387 transitions. [2022-03-20 12:26:31,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:31,765 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1387 transitions. [2022-03-20 12:26:31,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 12:26:31,767 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:31,767 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:31,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 12:26:31,767 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-03-20 12:26:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:31,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304955610] [2022-03-20 12:26:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:31,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:31,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 12:26:31,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:31,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304955610] [2022-03-20 12:26:31,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304955610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:31,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:31,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:31,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733696303] [2022-03-20 12:26:31,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:31,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:31,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:31,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:31,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:31,877 INFO L87 Difference]: Start difference. First operand 902 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:33,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:35,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:36,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:37,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:37,132 INFO L93 Difference]: Finished difference Result 1826 states and 2803 transitions. [2022-03-20 12:26:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:37,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 12:26:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:37,135 INFO L225 Difference]: With dead ends: 1826 [2022-03-20 12:26:37,135 INFO L226 Difference]: Without dead ends: 952 [2022-03-20 12:26:37,136 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:37,137 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:37,137 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 509 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 12:26:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-03-20 12:26:37,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 902. [2022-03-20 12:26:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.5395763656633221) internal successors, (1381), 897 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1385 transitions. [2022-03-20 12:26:37,152 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1385 transitions. Word has length 144 [2022-03-20 12:26:37,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:37,152 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1385 transitions. [2022-03-20 12:26:37,152 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1385 transitions. [2022-03-20 12:26:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 12:26:37,154 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:37,154 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:37,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 12:26:37,154 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:37,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-03-20 12:26:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:37,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925707447] [2022-03-20 12:26:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:37,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:37,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925707447] [2022-03-20 12:26:37,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925707447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:37,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:37,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:37,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320485609] [2022-03-20 12:26:37,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:37,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:37,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:37,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:37,264 INFO L87 Difference]: Start difference. First operand 902 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:38,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:40,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:41,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:41,438 INFO L93 Difference]: Finished difference Result 1996 states and 3054 transitions. [2022-03-20 12:26:41,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:41,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 12:26:41,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:41,442 INFO L225 Difference]: With dead ends: 1996 [2022-03-20 12:26:41,442 INFO L226 Difference]: Without dead ends: 1122 [2022-03-20 12:26:41,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:41,443 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:41,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 368 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 12:26:41,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-03-20 12:26:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 962. [2022-03-20 12:26:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5329153605015673) internal successors, (1467), 957 states have internal predecessors, (1467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1471 transitions. [2022-03-20 12:26:41,460 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1471 transitions. Word has length 144 [2022-03-20 12:26:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:41,460 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1471 transitions. [2022-03-20 12:26:41,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1471 transitions. [2022-03-20 12:26:41,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-20 12:26:41,462 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:41,462 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:41,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 12:26:41,462 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:41,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:41,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-03-20 12:26:41,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:41,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349341734] [2022-03-20 12:26:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:41,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 12:26:41,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:41,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349341734] [2022-03-20 12:26:41,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349341734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:41,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:41,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750240248] [2022-03-20 12:26:41,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:41,561 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:41,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:41,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:41,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:41,561 INFO L87 Difference]: Start difference. First operand 962 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:43,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:43,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:43,995 INFO L93 Difference]: Finished difference Result 1532 states and 2335 transitions. [2022-03-20 12:26:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:43,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-20 12:26:43,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:43,997 INFO L225 Difference]: With dead ends: 1532 [2022-03-20 12:26:43,998 INFO L226 Difference]: Without dead ends: 598 [2022-03-20 12:26:43,999 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:43,999 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 131 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:43,999 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 370 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-03-20 12:26:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-03-20 12:26:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4981203007518797) internal successors, (797), 532 states have internal predecessors, (797), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 801 transitions. [2022-03-20 12:26:44,007 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 801 transitions. Word has length 144 [2022-03-20 12:26:44,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:44,007 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 801 transitions. [2022-03-20 12:26:44,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 801 transitions. [2022-03-20 12:26:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 12:26:44,008 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:44,008 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:44,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 12:26:44,008 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:44,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2040378645, now seen corresponding path program 1 times [2022-03-20 12:26:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:44,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052521260] [2022-03-20 12:26:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:44,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052521260] [2022-03-20 12:26:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052521260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:44,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:44,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:44,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10765487] [2022-03-20 12:26:44,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:44,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:44,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:44,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:44,117 INFO L87 Difference]: Start difference. First operand 537 states and 801 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:45,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:47,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:49,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:49,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:49,894 INFO L93 Difference]: Finished difference Result 1107 states and 1654 transitions. [2022-03-20 12:26:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:49,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 12:26:49,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:49,896 INFO L225 Difference]: With dead ends: 1107 [2022-03-20 12:26:49,896 INFO L226 Difference]: Without dead ends: 598 [2022-03-20 12:26:49,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:49,897 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:49,897 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 376 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:26:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-03-20 12:26:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-03-20 12:26:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4849624060150375) internal successors, (790), 532 states have internal predecessors, (790), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 794 transitions. [2022-03-20 12:26:49,907 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 794 transitions. Word has length 145 [2022-03-20 12:26:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:49,907 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 794 transitions. [2022-03-20 12:26:49,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 794 transitions. [2022-03-20 12:26:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 12:26:49,909 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:49,909 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:49,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 12:26:49,909 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:49,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-03-20 12:26:49,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:49,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032570233] [2022-03-20 12:26:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:49,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:50,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:50,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:50,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032570233] [2022-03-20 12:26:50,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032570233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:50,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:50,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:50,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807546307] [2022-03-20 12:26:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:50,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:50,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:50,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:50,019 INFO L87 Difference]: Start difference. First operand 537 states and 794 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:52,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:52,438 INFO L93 Difference]: Finished difference Result 1107 states and 1640 transitions. [2022-03-20 12:26:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:52,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 12:26:52,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:52,440 INFO L225 Difference]: With dead ends: 1107 [2022-03-20 12:26:52,440 INFO L226 Difference]: Without dead ends: 598 [2022-03-20 12:26:52,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:52,441 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:52,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 370 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:26:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-03-20 12:26:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-03-20 12:26:52,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4755639097744362) internal successors, (785), 532 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) [2022-03-20 12:26:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 789 transitions. [2022-03-20 12:26:52,448 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 789 transitions. Word has length 145 [2022-03-20 12:26:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:52,449 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 789 transitions. [2022-03-20 12:26:52,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 789 transitions. [2022-03-20 12:26:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 12:26:52,450 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:52,450 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:52,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 12:26:52,450 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:52,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1500160743, now seen corresponding path program 1 times [2022-03-20 12:26:52,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:52,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783223033] [2022-03-20 12:26:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:52,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:52,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:52,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783223033] [2022-03-20 12:26:52,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783223033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:52,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:52,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:52,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517920155] [2022-03-20 12:26:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:52,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:52,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:52,544 INFO L87 Difference]: Start difference. First operand 537 states and 789 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:54,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:56,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:58,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:26:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:26:59,638 INFO L93 Difference]: Finished difference Result 1107 states and 1630 transitions. [2022-03-20 12:26:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:26:59,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 12:26:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:26:59,640 INFO L225 Difference]: With dead ends: 1107 [2022-03-20 12:26:59,640 INFO L226 Difference]: Without dead ends: 598 [2022-03-20 12:26:59,641 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:26:59,641 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:26:59,641 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 12:26:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-03-20 12:26:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-03-20 12:26:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.462406015037594) internal successors, (778), 532 states have internal predecessors, (778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:59,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 782 transitions. [2022-03-20 12:26:59,649 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 782 transitions. Word has length 146 [2022-03-20 12:26:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:26:59,650 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 782 transitions. [2022-03-20 12:26:59,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:26:59,650 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 782 transitions. [2022-03-20 12:26:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 12:26:59,650 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:26:59,651 INFO L499 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:26:59,651 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 12:26:59,651 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:26:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:26:59,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1615062166, now seen corresponding path program 1 times [2022-03-20 12:26:59,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:26:59,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963425430] [2022-03-20 12:26:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:26:59,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:26:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:59,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:26:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:26:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:26:59,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:26:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963425430] [2022-03-20 12:26:59,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963425430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:26:59,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:26:59,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:26:59,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697732766] [2022-03-20 12:26:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:26:59,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:26:59,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:26:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:26:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:26:59,761 INFO L87 Difference]: Start difference. First operand 537 states and 782 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:00,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:02,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:04,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:06,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:06,987 INFO L93 Difference]: Finished difference Result 1069 states and 1561 transitions. [2022-03-20 12:27:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-20 12:27:06,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:06,990 INFO L225 Difference]: With dead ends: 1069 [2022-03-20 12:27:06,990 INFO L226 Difference]: Without dead ends: 560 [2022-03-20 12:27:06,990 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:06,991 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 43 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:06,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 519 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-20 12:27:06,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-03-20 12:27:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 537. [2022-03-20 12:27:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4605263157894737) internal successors, (777), 532 states have internal predecessors, (777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 781 transitions. [2022-03-20 12:27:06,998 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 781 transitions. Word has length 148 [2022-03-20 12:27:06,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:06,998 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 781 transitions. [2022-03-20 12:27:06,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:06,999 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 781 transitions. [2022-03-20 12:27:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 12:27:07,004 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:07,004 INFO L499 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:07,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 12:27:07,004 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:07,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:07,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1128973103, now seen corresponding path program 1 times [2022-03-20 12:27:07,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:07,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400399515] [2022-03-20 12:27:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:07,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:07,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:07,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400399515] [2022-03-20 12:27:07,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400399515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:07,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:07,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:07,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103395901] [2022-03-20 12:27:07,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:07,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:07,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:07,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:07,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:07,100 INFO L87 Difference]: Start difference. First operand 537 states and 781 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:08,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:11,686 INFO L93 Difference]: Finished difference Result 1065 states and 1554 transitions. [2022-03-20 12:27:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-20 12:27:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:11,688 INFO L225 Difference]: With dead ends: 1065 [2022-03-20 12:27:11,688 INFO L226 Difference]: Without dead ends: 556 [2022-03-20 12:27:11,689 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:11,689 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 38 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:11,689 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 523 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 12:27:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-03-20 12:27:11,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 537. [2022-03-20 12:27:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4586466165413534) internal successors, (776), 532 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) [2022-03-20 12:27:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 780 transitions. [2022-03-20 12:27:11,721 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 780 transitions. Word has length 149 [2022-03-20 12:27:11,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:11,721 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 780 transitions. [2022-03-20 12:27:11,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:11,721 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 780 transitions. [2022-03-20 12:27:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 12:27:11,722 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:11,722 INFO L499 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:11,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 12:27:11,722 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:11,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1559975034, now seen corresponding path program 1 times [2022-03-20 12:27:11,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:11,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216104748] [2022-03-20 12:27:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:11,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:11,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:11,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216104748] [2022-03-20 12:27:11,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216104748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:11,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:11,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:11,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372551118] [2022-03-20 12:27:11,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:11,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:11,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:11,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:11,856 INFO L87 Difference]: Start difference. First operand 537 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) [2022-03-20 12:27:14,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:16,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:18,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:18,864 INFO L93 Difference]: Finished difference Result 1149 states and 1675 transitions. [2022-03-20 12:27:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:18,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-20 12:27:18,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:18,866 INFO L225 Difference]: With dead ends: 1149 [2022-03-20 12:27:18,866 INFO L226 Difference]: Without dead ends: 640 [2022-03-20 12:27:18,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:18,866 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 104 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:18,867 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-20 12:27:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-03-20 12:27:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 572. [2022-03-20 12:27:18,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4532627865961198) internal successors, (824), 567 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 828 transitions. [2022-03-20 12:27:18,875 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 828 transitions. Word has length 149 [2022-03-20 12:27:18,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:18,875 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 828 transitions. [2022-03-20 12:27:18,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 828 transitions. [2022-03-20 12:27:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-20 12:27:18,876 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:18,876 INFO L499 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:18,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 12:27:18,877 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash -933634450, now seen corresponding path program 1 times [2022-03-20 12:27:18,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:18,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022079349] [2022-03-20 12:27:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:18,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 12:27:18,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:18,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022079349] [2022-03-20 12:27:18,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022079349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:18,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:18,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:18,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757986308] [2022-03-20 12:27:18,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:18,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:18,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:18,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:18,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:18,979 INFO L87 Difference]: Start difference. First operand 572 states and 828 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:21,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:23,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:24,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:24,007 INFO L93 Difference]: Finished difference Result 1133 states and 1646 transitions. [2022-03-20 12:27:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-20 12:27:24,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:24,009 INFO L225 Difference]: With dead ends: 1133 [2022-03-20 12:27:24,009 INFO L226 Difference]: Without dead ends: 589 [2022-03-20 12:27:24,010 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:24,010 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 33 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:24,010 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 525 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:27:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-03-20 12:27:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 572. [2022-03-20 12:27:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4514991181657848) internal successors, (823), 567 states have internal predecessors, (823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:24,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 827 transitions. [2022-03-20 12:27:24,018 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 827 transitions. Word has length 150 [2022-03-20 12:27:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:24,018 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 827 transitions. [2022-03-20 12:27:24,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 827 transitions. [2022-03-20 12:27:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-20 12:27:24,025 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:24,025 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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] [2022-03-20 12:27:24,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 12:27:24,025 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:24,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2006253839, now seen corresponding path program 1 times [2022-03-20 12:27:24,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:24,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094103788] [2022-03-20 12:27:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:24,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:27:24,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:24,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094103788] [2022-03-20 12:27:24,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094103788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:24,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:24,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:24,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179186725] [2022-03-20 12:27:24,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:24,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:24,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:24,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:24,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:24,157 INFO L87 Difference]: Start difference. First operand 572 states and 827 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:26,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:26,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:26,498 INFO L93 Difference]: Finished difference Result 1130 states and 1641 transitions. [2022-03-20 12:27:26,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:26,498 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 152 [2022-03-20 12:27:26,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:26,499 INFO L225 Difference]: With dead ends: 1130 [2022-03-20 12:27:26,500 INFO L226 Difference]: Without dead ends: 586 [2022-03-20 12:27:26,501 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:26,501 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 38 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:26,501 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 569 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:27:26,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-20 12:27:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 572. [2022-03-20 12:27:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4497354497354498) internal successors, (822), 567 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 826 transitions. [2022-03-20 12:27:26,515 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 826 transitions. Word has length 152 [2022-03-20 12:27:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:26,515 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 826 transitions. [2022-03-20 12:27:26,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:26,515 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 826 transitions. [2022-03-20 12:27:26,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 12:27:26,516 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:26,516 INFO L499 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:26,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 12:27:26,516 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash -548960133, now seen corresponding path program 1 times [2022-03-20 12:27:26,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:26,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270003855] [2022-03-20 12:27:26,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:26,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:26,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:27:26,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:26,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270003855] [2022-03-20 12:27:26,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270003855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:26,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:26,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:26,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717050273] [2022-03-20 12:27:26,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:26,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:26,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:26,680 INFO L87 Difference]: Start difference. First operand 572 states and 826 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 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) [2022-03-20 12:27:29,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:31,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:31,884 INFO L93 Difference]: Finished difference Result 1151 states and 1667 transitions. [2022-03-20 12:27:31,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:31,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 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 158 [2022-03-20 12:27:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:31,885 INFO L225 Difference]: With dead ends: 1151 [2022-03-20 12:27:31,885 INFO L226 Difference]: Without dead ends: 607 [2022-03-20 12:27:31,886 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:31,886 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 65 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:31,886 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 544 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 12:27:31,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-03-20 12:27:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 572. [2022-03-20 12:27:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4479717813051147) internal successors, (821), 567 states have internal predecessors, (821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:31,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 825 transitions. [2022-03-20 12:27:31,894 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 825 transitions. Word has length 158 [2022-03-20 12:27:31,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:31,894 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 825 transitions. [2022-03-20 12:27:31,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 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) [2022-03-20 12:27:31,895 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 825 transitions. [2022-03-20 12:27:31,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 12:27:31,895 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:31,896 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:31,896 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 12:27:31,896 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:31,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1599750346, now seen corresponding path program 1 times [2022-03-20 12:27:31,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:31,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248892614] [2022-03-20 12:27:31,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:31,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:27:32,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:32,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248892614] [2022-03-20 12:27:32,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248892614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:32,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:32,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:32,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036891294] [2022-03-20 12:27:32,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:32,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:32,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:32,026 INFO L87 Difference]: Start difference. First operand 572 states and 825 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:34,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:34,427 INFO L93 Difference]: Finished difference Result 1149 states and 1663 transitions. [2022-03-20 12:27:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:34,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 12:27:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:34,429 INFO L225 Difference]: With dead ends: 1149 [2022-03-20 12:27:34,429 INFO L226 Difference]: Without dead ends: 605 [2022-03-20 12:27:34,429 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:34,430 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 57 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:34,430 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 546 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:27:34,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-03-20 12:27:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 572. [2022-03-20 12:27:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4462081128747795) internal successors, (820), 567 states have internal predecessors, (820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 824 transitions. [2022-03-20 12:27:34,438 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 824 transitions. Word has length 164 [2022-03-20 12:27:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:34,438 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 824 transitions. [2022-03-20 12:27:34,438 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 824 transitions. [2022-03-20 12:27:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 12:27:34,439 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:34,439 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:34,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 12:27:34,440 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1310716344, now seen corresponding path program 1 times [2022-03-20 12:27:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223111722] [2022-03-20 12:27:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:34,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:34,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:27:34,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:34,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223111722] [2022-03-20 12:27:34,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223111722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:34,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:34,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:34,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505956174] [2022-03-20 12:27:34,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:34,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:34,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:34,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:34,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:34,574 INFO L87 Difference]: Start difference. First operand 572 states and 824 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:37,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:38,870 INFO L93 Difference]: Finished difference Result 1255 states and 1817 transitions. [2022-03-20 12:27:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:38,870 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 167 [2022-03-20 12:27:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:38,871 INFO L225 Difference]: With dead ends: 1255 [2022-03-20 12:27:38,871 INFO L226 Difference]: Without dead ends: 711 [2022-03-20 12:27:38,872 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:38,872 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 106 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:38,872 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 382 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 12:27:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-03-20 12:27:38,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 636. [2022-03-20 12:27:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.4421553090332806) internal successors, (910), 631 states have internal predecessors, (910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 914 transitions. [2022-03-20 12:27:38,900 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 914 transitions. Word has length 167 [2022-03-20 12:27:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:38,900 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 914 transitions. [2022-03-20 12:27:38,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 914 transitions. [2022-03-20 12:27:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 12:27:38,901 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:38,901 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:38,902 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 12:27:38,902 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1892544354, now seen corresponding path program 1 times [2022-03-20 12:27:38,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:38,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619051331] [2022-03-20 12:27:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:38,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 12:27:39,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:39,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619051331] [2022-03-20 12:27:39,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619051331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:39,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:39,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:39,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254308339] [2022-03-20 12:27:39,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:39,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:39,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:39,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:39,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:39,063 INFO L87 Difference]: Start difference. First operand 636 states and 914 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:40,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:42,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:44,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:45,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:45,136 INFO L93 Difference]: Finished difference Result 1303 states and 1878 transitions. [2022-03-20 12:27:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:45,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 12:27:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:45,137 INFO L225 Difference]: With dead ends: 1303 [2022-03-20 12:27:45,137 INFO L226 Difference]: Without dead ends: 695 [2022-03-20 12:27:45,138 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:45,138 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 122 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:45,139 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 354 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:27:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-03-20 12:27:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 636. [2022-03-20 12:27:45,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.427892234548336) internal successors, (901), 631 states have internal predecessors, (901), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:45,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 905 transitions. [2022-03-20 12:27:45,149 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 905 transitions. Word has length 171 [2022-03-20 12:27:45,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:45,149 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 905 transitions. [2022-03-20 12:27:45,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:45,149 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 905 transitions. [2022-03-20 12:27:45,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 12:27:45,150 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:45,150 INFO L499 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] [2022-03-20 12:27:45,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 12:27:45,150 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:45,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:45,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-03-20 12:27:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373916295] [2022-03-20 12:27:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:45,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 12:27:45,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:45,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373916295] [2022-03-20 12:27:45,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373916295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:45,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:45,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:45,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176821574] [2022-03-20 12:27:45,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:45,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:45,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:45,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:45,264 INFO L87 Difference]: Start difference. First operand 636 states and 905 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:46,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:48,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:49,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:50,196 INFO L93 Difference]: Finished difference Result 1818 states and 2608 transitions. [2022-03-20 12:27:50,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:27:50,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-20 12:27:50,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:50,198 INFO L225 Difference]: With dead ends: 1818 [2022-03-20 12:27:50,198 INFO L226 Difference]: Without dead ends: 1210 [2022-03-20 12:27:50,199 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:50,199 INFO L913 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:50,199 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 404 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 12:27:50,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-03-20 12:27:50,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2022-03-20 12:27:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1205 states have (on average 1.4307053941908714) internal successors, (1724), 1205 states have internal predecessors, (1724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1728 transitions. [2022-03-20 12:27:50,217 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1728 transitions. Word has length 172 [2022-03-20 12:27:50,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:50,218 INFO L478 AbstractCegarLoop]: Abstraction has 1210 states and 1728 transitions. [2022-03-20 12:27:50,218 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:50,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1728 transitions. [2022-03-20 12:27:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:27:50,219 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:50,219 INFO L499 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] [2022-03-20 12:27:50,219 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 12:27:50,219 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:50,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-03-20 12:27:50,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:50,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711723054] [2022-03-20 12:27:50,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:50,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:27:50,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:50,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711723054] [2022-03-20 12:27:50,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711723054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:50,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:50,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:50,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284392789] [2022-03-20 12:27:50,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:50,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:50,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:50,315 INFO L87 Difference]: Start difference. First operand 1210 states and 1728 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:52,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:53,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:53,516 INFO L93 Difference]: Finished difference Result 2934 states and 4208 transitions. [2022-03-20 12:27:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:27:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 12:27:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:53,519 INFO L225 Difference]: With dead ends: 2934 [2022-03-20 12:27:53,519 INFO L226 Difference]: Without dead ends: 1752 [2022-03-20 12:27:53,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:53,521 INFO L913 BasicCegarLoop]: 308 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:53,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 502 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 12:27:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2022-03-20 12:27:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2022-03-20 12:27:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1747 states have (on average 1.4315970234688036) internal successors, (2501), 1747 states have internal predecessors, (2501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:53,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2505 transitions. [2022-03-20 12:27:53,545 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2505 transitions. Word has length 173 [2022-03-20 12:27:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:53,545 INFO L478 AbstractCegarLoop]: Abstraction has 1752 states and 2505 transitions. [2022-03-20 12:27:53,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:53,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2505 transitions. [2022-03-20 12:27:53,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:27:53,547 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:53,547 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:53,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 12:27:53,547 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:53,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1432094791, now seen corresponding path program 1 times [2022-03-20 12:27:53,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:53,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268235977] [2022-03-20 12:27:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:53,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:53,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:53,645 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-20 12:27:53,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:53,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268235977] [2022-03-20 12:27:53,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268235977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:53,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:53,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:27:53,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026640480] [2022-03-20 12:27:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:53,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:27:53,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:53,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:27:53,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:27:53,646 INFO L87 Difference]: Start difference. First operand 1752 states and 2505 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:56,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:27:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:27:58,269 INFO L93 Difference]: Finished difference Result 3534 states and 5059 transitions. [2022-03-20 12:27:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:27:58,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 12:27:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:27:58,272 INFO L225 Difference]: With dead ends: 3534 [2022-03-20 12:27:58,272 INFO L226 Difference]: Without dead ends: 1810 [2022-03-20 12:27:58,274 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:27:58,275 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 36 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 12:27:58,275 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 582 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 12:27:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-03-20 12:27:58,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1752. [2022-03-20 12:27:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1747 states have (on average 1.4298797939324557) internal successors, (2498), 1747 states have internal predecessors, (2498), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2502 transitions. [2022-03-20 12:27:58,299 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2502 transitions. Word has length 173 [2022-03-20 12:27:58,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:27:58,299 INFO L478 AbstractCegarLoop]: Abstraction has 1752 states and 2502 transitions. [2022-03-20 12:27:58,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:27:58,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2502 transitions. [2022-03-20 12:27:58,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-20 12:27:58,301 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:27:58,301 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:27:58,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 12:27:58,301 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:27:58,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:27:58,302 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-03-20 12:27:58,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:27:58,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611742032] [2022-03-20 12:27:58,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:27:58,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:27:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:27:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:27:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 12:27:58,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:27:58,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611742032] [2022-03-20 12:27:58,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611742032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:27:58,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:27:58,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:27:58,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697615549] [2022-03-20 12:27:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:27:58,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:27:58,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:27:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:27:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:27:58,394 INFO L87 Difference]: Start difference. First operand 1752 states and 2502 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:00,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:02,091 INFO L93 Difference]: Finished difference Result 4009 states and 5743 transitions. [2022-03-20 12:28:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:28:02,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-20 12:28:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:02,094 INFO L225 Difference]: With dead ends: 4009 [2022-03-20 12:28:02,094 INFO L226 Difference]: Without dead ends: 2285 [2022-03-20 12:28:02,096 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:28:02,097 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:02,097 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 512 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 12:28:02,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2022-03-20 12:28:02,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2022-03-20 12:28:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2280 states have (on average 1.4307017543859648) internal successors, (3262), 2280 states have internal predecessors, (3262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3266 transitions. [2022-03-20 12:28:02,127 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3266 transitions. Word has length 174 [2022-03-20 12:28:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:02,127 INFO L478 AbstractCegarLoop]: Abstraction has 2285 states and 3266 transitions. [2022-03-20 12:28:02,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3266 transitions. [2022-03-20 12:28:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-20 12:28:02,130 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:02,130 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 12:28:02,130 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 12:28:02,131 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:02,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1885880363, now seen corresponding path program 1 times [2022-03-20 12:28:02,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:02,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612039180] [2022-03-20 12:28:02,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:02,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-03-20 12:28:02,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:02,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612039180] [2022-03-20 12:28:02,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612039180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:02,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:02,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:28:02,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188179562] [2022-03-20 12:28:02,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:02,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:28:02,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:02,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:28:02,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:28:02,280 INFO L87 Difference]: Start difference. First operand 2285 states and 3266 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:03,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:05,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:07,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:07,603 INFO L93 Difference]: Finished difference Result 5121 states and 7336 transitions. [2022-03-20 12:28:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:28:07,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-20 12:28:07,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:07,608 INFO L225 Difference]: With dead ends: 5121 [2022-03-20 12:28:07,608 INFO L226 Difference]: Without dead ends: 2864 [2022-03-20 12:28:07,611 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:28:07,611 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 150 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:07,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 379 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 12:28:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2022-03-20 12:28:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2864. [2022-03-20 12:28:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2864 states, 2859 states have (on average 1.4326687653025534) internal successors, (4096), 2859 states have internal predecessors, (4096), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 4100 transitions. [2022-03-20 12:28:07,675 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 4100 transitions. Word has length 246 [2022-03-20 12:28:07,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:07,676 INFO L478 AbstractCegarLoop]: Abstraction has 2864 states and 4100 transitions. [2022-03-20 12:28:07,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:07,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 4100 transitions. [2022-03-20 12:28:07,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-20 12:28:07,679 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:07,679 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:07,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 12:28:07,680 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:07,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:07,680 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-03-20 12:28:07,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:07,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711318055] [2022-03-20 12:28:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:07,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-20 12:28:07,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:07,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711318055] [2022-03-20 12:28:07,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711318055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:07,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:07,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:07,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265127314] [2022-03-20 12:28:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:07,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:07,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:07,869 INFO L87 Difference]: Start difference. First operand 2864 states and 4100 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:10,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:12,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:13,355 INFO L93 Difference]: Finished difference Result 6051 states and 8653 transitions. [2022-03-20 12:28:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:13,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 297 [2022-03-20 12:28:13,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:13,364 INFO L225 Difference]: With dead ends: 6051 [2022-03-20 12:28:13,364 INFO L226 Difference]: Without dead ends: 3215 [2022-03-20 12:28:13,367 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:13,368 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 47 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:13,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 603 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 12:28:13,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2022-03-20 12:28:13,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3069. [2022-03-20 12:28:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3064 states have (on average 1.431462140992167) internal successors, (4386), 3064 states have internal predecessors, (4386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4390 transitions. [2022-03-20 12:28:13,412 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4390 transitions. Word has length 297 [2022-03-20 12:28:13,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:13,412 INFO L478 AbstractCegarLoop]: Abstraction has 3069 states and 4390 transitions. [2022-03-20 12:28:13,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:13,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4390 transitions. [2022-03-20 12:28:13,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-20 12:28:13,416 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:13,416 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:13,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 12:28:13,416 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:13,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-03-20 12:28:13,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:13,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730328150] [2022-03-20 12:28:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:13,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:13,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-20 12:28:13,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:13,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730328150] [2022-03-20 12:28:13,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730328150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:13,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:13,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 12:28:13,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457556528] [2022-03-20 12:28:13,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:13,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 12:28:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 12:28:13,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:28:13,807 INFO L87 Difference]: Start difference. First operand 3069 states and 4390 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:15,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:17,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:18,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:19,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:21,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:23,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:24,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:24,973 INFO L93 Difference]: Finished difference Result 8858 states and 12700 transitions. [2022-03-20 12:28:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 12:28:24,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 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 297 [2022-03-20 12:28:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:24,981 INFO L225 Difference]: With dead ends: 8858 [2022-03-20 12:28:24,981 INFO L226 Difference]: Without dead ends: 5817 [2022-03-20 12:28:24,985 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-20 12:28:24,985 INFO L913 BasicCegarLoop]: 290 mSDtfsCounter, 434 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 104 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:24,985 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1029 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1015 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-03-20 12:28:24,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2022-03-20 12:28:25,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5499. [2022-03-20 12:28:25,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5494 states have (on average 1.4450309428467418) internal successors, (7939), 5494 states have internal predecessors, (7939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 7943 transitions. [2022-03-20 12:28:25,119 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 7943 transitions. Word has length 297 [2022-03-20 12:28:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:25,120 INFO L478 AbstractCegarLoop]: Abstraction has 5499 states and 7943 transitions. [2022-03-20 12:28:25,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 7943 transitions. [2022-03-20 12:28:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-20 12:28:25,127 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:25,127 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:25,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 12:28:25,127 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-03-20 12:28:25,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:25,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883298708] [2022-03-20 12:28:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-20 12:28:25,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:25,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883298708] [2022-03-20 12:28:25,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883298708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:25,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:25,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:25,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929892144] [2022-03-20 12:28:25,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:25,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:25,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:25,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:25,326 INFO L87 Difference]: Start difference. First operand 5499 states and 7943 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:26,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:28,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:30,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:30,439 INFO L93 Difference]: Finished difference Result 11247 states and 16219 transitions. [2022-03-20 12:28:30,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:30,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 298 [2022-03-20 12:28:30,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:30,447 INFO L225 Difference]: With dead ends: 11247 [2022-03-20 12:28:30,447 INFO L226 Difference]: Without dead ends: 5756 [2022-03-20 12:28:30,453 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:30,453 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 46 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:30,453 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 601 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 12:28:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2022-03-20 12:28:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5484. [2022-03-20 12:28:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.444424164993612) internal successors, (7914), 5479 states have internal predecessors, (7914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7918 transitions. [2022-03-20 12:28:30,623 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7918 transitions. Word has length 298 [2022-03-20 12:28:30,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:30,624 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7918 transitions. [2022-03-20 12:28:30,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7918 transitions. [2022-03-20 12:28:30,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-03-20 12:28:30,631 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:30,631 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-20 12:28:30,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-20 12:28:30,631 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:30,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:30,631 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-03-20 12:28:30,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:30,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448131131] [2022-03-20 12:28:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:30,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-20 12:28:30,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:30,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448131131] [2022-03-20 12:28:30,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448131131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:30,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:30,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:30,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406337077] [2022-03-20 12:28:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:30,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:30,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:30,802 INFO L87 Difference]: Start difference. First operand 5484 states and 7918 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 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) [2022-03-20 12:28:32,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:33,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:33,325 INFO L93 Difference]: Finished difference Result 11212 states and 16164 transitions. [2022-03-20 12:28:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:33,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 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 319 [2022-03-20 12:28:33,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:33,333 INFO L225 Difference]: With dead ends: 11212 [2022-03-20 12:28:33,333 INFO L226 Difference]: Without dead ends: 5756 [2022-03-20 12:28:33,363 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:33,363 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 60 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:33,363 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 599 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:28:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2022-03-20 12:28:33,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5484. [2022-03-20 12:28:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.4425990144186895) internal successors, (7904), 5479 states have internal predecessors, (7904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7908 transitions. [2022-03-20 12:28:33,443 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7908 transitions. Word has length 319 [2022-03-20 12:28:33,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:33,444 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7908 transitions. [2022-03-20 12:28:33,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 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) [2022-03-20 12:28:33,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7908 transitions. [2022-03-20 12:28:33,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-03-20 12:28:33,476 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:33,476 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-20 12:28:33,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-20 12:28:33,476 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:33,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:33,476 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-03-20 12:28:33,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:33,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578782034] [2022-03-20 12:28:33,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:33,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-20 12:28:33,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:33,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578782034] [2022-03-20 12:28:33,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578782034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:33,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:33,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933500821] [2022-03-20 12:28:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:33,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:33,647 INFO L87 Difference]: Start difference. First operand 5484 states and 7908 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 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) [2022-03-20 12:28:35,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:36,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:36,217 INFO L93 Difference]: Finished difference Result 11172 states and 16090 transitions. [2022-03-20 12:28:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:36,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 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 320 [2022-03-20 12:28:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:36,226 INFO L225 Difference]: With dead ends: 11172 [2022-03-20 12:28:36,226 INFO L226 Difference]: Without dead ends: 5716 [2022-03-20 12:28:36,246 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:36,246 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 54 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:36,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 591 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:28:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2022-03-20 12:28:36,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 5484. [2022-03-20 12:28:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.440773863843767) internal successors, (7894), 5479 states have internal predecessors, (7894), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7898 transitions. [2022-03-20 12:28:36,319 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7898 transitions. Word has length 320 [2022-03-20 12:28:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:36,320 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7898 transitions. [2022-03-20 12:28:36,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 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) [2022-03-20 12:28:36,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7898 transitions. [2022-03-20 12:28:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-03-20 12:28:36,326 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:36,326 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:36,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-20 12:28:36,327 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash -439796824, now seen corresponding path program 1 times [2022-03-20 12:28:36,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:36,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20485701] [2022-03-20 12:28:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 557 proven. 99 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-20 12:28:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:36,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20485701] [2022-03-20 12:28:36,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20485701] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:28:36,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662416318] [2022-03-20 12:28:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:36,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:28:36,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:28:36,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:28:36,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:28:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:37,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-20 12:28:37,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:28:37,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 12:28:37,951 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-20 12:28:37,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-03-20 12:28:37,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 12:28:37,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 12:28:38,102 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 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-20 12:28:38,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-03-20 12:28:38,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:28:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-03-20 12:28:38,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 12:28:38,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662416318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:38,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 12:28:38,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-03-20 12:28:38,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726675610] [2022-03-20 12:28:38,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:38,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:28:38,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:38,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:28:38,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-03-20 12:28:38,328 INFO L87 Difference]: Start difference. First operand 5484 states and 7898 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:40,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:40,524 INFO L93 Difference]: Finished difference Result 11151 states and 16044 transitions. [2022-03-20 12:28:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:28:40,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 323 [2022-03-20 12:28:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:40,531 INFO L225 Difference]: With dead ends: 11151 [2022-03-20 12:28:40,531 INFO L226 Difference]: Without dead ends: 5695 [2022-03-20 12:28:40,537 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:28:40,537 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 49 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:40,537 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 601 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 12:28:40,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2022-03-20 12:28:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5539. [2022-03-20 12:28:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5534 states have (on average 1.440007228044814) internal successors, (7969), 5534 states have internal predecessors, (7969), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 7973 transitions. [2022-03-20 12:28:40,661 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 7973 transitions. Word has length 323 [2022-03-20 12:28:40,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:40,661 INFO L478 AbstractCegarLoop]: Abstraction has 5539 states and 7973 transitions. [2022-03-20 12:28:40,661 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:40,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 7973 transitions. [2022-03-20 12:28:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-20 12:28:40,671 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:40,671 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:40,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 12:28:40,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:28:40,894 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:40,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:40,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1151994747, now seen corresponding path program 1 times [2022-03-20 12:28:40,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:40,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311740338] [2022-03-20 12:28:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:40,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-20 12:28:41,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:41,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311740338] [2022-03-20 12:28:41,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311740338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:28:41,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:28:41,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:28:41,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241228325] [2022-03-20 12:28:41,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:28:41,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:28:41,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:28:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:28:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:28:41,090 INFO L87 Difference]: Start difference. First operand 5539 states and 7973 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:42,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:44,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:46,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:28:46,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:28:46,683 INFO L93 Difference]: Finished difference Result 11101 states and 15984 transitions. [2022-03-20 12:28:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:28:46,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 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 324 [2022-03-20 12:28:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:28:46,690 INFO L225 Difference]: With dead ends: 11101 [2022-03-20 12:28:46,690 INFO L226 Difference]: Without dead ends: 5590 [2022-03-20 12:28:46,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:28:46,696 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:28:46,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 582 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 12:28:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2022-03-20 12:28:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5484. [2022-03-20 12:28:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.4398612885563058) internal successors, (7889), 5479 states have internal predecessors, (7889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:46,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7893 transitions. [2022-03-20 12:28:46,799 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7893 transitions. Word has length 324 [2022-03-20 12:28:46,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:28:46,799 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7893 transitions. [2022-03-20 12:28:46,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:28:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7893 transitions. [2022-03-20 12:28:46,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-20 12:28:46,805 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:28:46,805 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:28:46,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-20 12:28:46,805 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:28:46,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:28:46,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-03-20 12:28:46,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:28:46,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088634594] [2022-03-20 12:28:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:46,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:28:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:28:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-20 12:28:47,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:28:47,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088634594] [2022-03-20 12:28:47,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088634594] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:28:47,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698519384] [2022-03-20 12:28:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:28:47,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:28:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:28:47,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:28:47,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 12:28:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:28:48,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-20 12:28:48,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:28:48,758 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:28:48,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:28:48,905 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 12:28:48,906 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 [2022-03-20 12:28:49,023 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 9 treesize of output 3 [2022-03-20 12:28:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,112 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 [2022-03-20 12:28:49,136 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 12:28:49,137 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 [2022-03-20 12:28:49,146 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:28:49,146 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 85 treesize of output 72 [2022-03-20 12:28:49,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,764 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 [2022-03-20 12:28:49,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,783 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 12:28:49,783 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 [2022-03-20 12:28:49,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,788 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 [2022-03-20 12:28:49,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,847 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 [2022-03-20 12:28:49,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,886 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 12:28:49,886 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 [2022-03-20 12:28:49,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:49,890 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 [2022-03-20 12:28:50,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:50,565 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 12:28:50,578 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 [2022-03-20 12:28:50,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:50,614 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 12:28:50,615 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 [2022-03-20 12:28:50,659 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 12:28:50,659 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 [2022-03-20 12:28:56,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,907 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 [2022-03-20 12:28:56,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,916 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 [2022-03-20 12:28:56,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:28:56,943 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-20 12:28:56,943 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 [2022-03-20 12:30:28,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,480 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 [2022-03-20 12:30:28,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,487 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 [2022-03-20 12:30:28,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:28,507 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-03-20 12:30:28,507 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 290 treesize of output 280 [2022-03-20 12:30:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:31,456 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 [2022-03-20 12:30:31,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:31,461 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 [2022-03-20 12:30:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:31,490 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-03-20 12:30:31,490 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 5 case distinctions, treesize of input 97 treesize of output 93 [2022-03-20 12:30:31,553 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 12:30:31,554 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 [2022-03-20 12:30:31,690 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:30:31,690 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 [2022-03-20 12:30:31,718 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 12:30:31,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:30:34,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:34,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:34,352 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 [2022-03-20 12:30:34,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:34,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:34,356 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 [2022-03-20 12:30:36,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:36,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:36,322 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:30:36,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:30:36,325 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-03-20 12:30:36,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 68 treesize of output 1 [2022-03-20 12:30:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 12:30:36,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698519384] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 12:30:36,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 12:30:36,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 14] total 44 [2022-03-20 12:30:36,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657245209] [2022-03-20 12:30:36,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 12:30:36,467 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-20 12:30:36,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:30:36,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-20 12:30:36,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1590, Unknown=0, NotChecked=0, Total=1892 [2022-03-20 12:30:36,468 INFO L87 Difference]: Start difference. First operand 5484 states and 7893 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:39,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:40,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:42,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:44,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:46,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:47,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:49,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:30:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:30:56,857 INFO L93 Difference]: Finished difference Result 24755 states and 35101 transitions. [2022-03-20 12:30:56,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-20 12:30:56,857 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 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 326 [2022-03-20 12:30:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:30:56,887 INFO L225 Difference]: With dead ends: 24755 [2022-03-20 12:30:56,887 INFO L226 Difference]: Without dead ends: 19299 [2022-03-20 12:30:56,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 685 SyntacticMatches, 4 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5082 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1617, Invalid=13389, Unknown=0, NotChecked=0, Total=15006 [2022-03-20 12:30:56,897 INFO L913 BasicCegarLoop]: 412 mSDtfsCounter, 2017 mSDsluCounter, 4134 mSDsCounter, 0 mSdLazyCounter, 4416 mSolverCounterSat, 204 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 4546 SdHoareTripleChecker+Invalid, 7031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 4416 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 2407 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:30:56,897 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2017 Valid, 4546 Invalid, 7031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 4416 Invalid, 4 Unknown, 2407 Unchecked, 16.5s Time] [2022-03-20 12:30:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19299 states. [2022-03-20 12:30:57,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19299 to 6603. [2022-03-20 12:30:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6603 states, 6598 states have (on average 1.4568050924522582) internal successors, (9612), 6598 states have internal predecessors, (9612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 9616 transitions. [2022-03-20 12:30:57,152 INFO L78 Accepts]: Start accepts. Automaton has 6603 states and 9616 transitions. Word has length 326 [2022-03-20 12:30:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:30:57,153 INFO L478 AbstractCegarLoop]: Abstraction has 6603 states and 9616 transitions. [2022-03-20 12:30:57,153 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:30:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6603 states and 9616 transitions. [2022-03-20 12:30:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-03-20 12:30:57,162 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:30:57,162 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:30:57,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 12:30:57,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-03-20 12:30:57,375 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:30:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:30:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1003894121, now seen corresponding path program 1 times [2022-03-20 12:30:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:30:57,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049998725] [2022-03-20 12:30:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:30:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:30:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:30:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 198 proven. 696 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:30:58,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:30:58,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049998725] [2022-03-20 12:30:58,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049998725] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:30:58,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725075579] [2022-03-20 12:30:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:30:58,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:30:58,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:30:58,676 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:30:58,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 12:30:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:30:59,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-20 12:30:59,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:30:59,828 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:30:59,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:30:59,942 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 12:30:59,943 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 [2022-03-20 12:31:00,030 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 9 treesize of output 3 [2022-03-20 12:31:00,113 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:31:00,113 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 [2022-03-20 12:31:00,125 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:31:00,125 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 [2022-03-20 12:31:00,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,134 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 [2022-03-20 12:31:00,156 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 12:31:00,157 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 [2022-03-20 12:31:00,194 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:31:00,195 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 [2022-03-20 12:31:00,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,651 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 [2022-03-20 12:31:00,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,664 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 12:31:00,665 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 [2022-03-20 12:31:00,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,689 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 [2022-03-20 12:31:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,758 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 [2022-03-20 12:31:00,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,779 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 12:31:00,780 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 [2022-03-20 12:31:00,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:00,784 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 [2022-03-20 12:31:01,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:01,492 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 12:31:01,493 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 [2022-03-20 12:31:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:01,528 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 12:31:01,528 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 [2022-03-20 12:31:01,571 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 12:31:01,572 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 [2022-03-20 12:31:08,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,863 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 198 treesize of output 180 [2022-03-20 12:31:08,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,874 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 198 treesize of output 180 [2022-03-20 12:31:08,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:31:08,898 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-20 12:31:08,899 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 198 treesize of output 208 [2022-03-20 12:32:31,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 171 [2022-03-20 12:32:31,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,440 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 193 treesize of output 171 [2022-03-20 12:32:31,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:31,462 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-03-20 12:32:31,462 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 193 treesize of output 189 [2022-03-20 12:32:33,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:33,453 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 165 treesize of output 111 [2022-03-20 12:32:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:33,458 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 121 treesize of output 73 [2022-03-20 12:32:33,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:33,478 INFO L356 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2022-03-20 12:32:33,478 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 4 case distinctions, treesize of input 63 treesize of output 59 [2022-03-20 12:32:33,533 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 12:32:33,534 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 [2022-03-20 12:32:33,654 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:32:33,654 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 [2022-03-20 12:32:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 12:32:33,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:32:36,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:36,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:36,470 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 [2022-03-20 12:32:36,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:36,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:36,474 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 [2022-03-20 12:32:58,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:58,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:58,006 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 [2022-03-20 12:32:58,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:58,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:58,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:32:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:32:58,011 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 [2022-03-20 12:32:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-20 12:32:58,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725075579] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 12:32:58,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 12:32:58,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 15] total 50 [2022-03-20 12:32:58,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661552888] [2022-03-20 12:32:58,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 12:32:58,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-20 12:32:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:32:58,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-20 12:32:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2153, Unknown=10, NotChecked=0, Total=2450 [2022-03-20 12:32:58,139 INFO L87 Difference]: Start difference. First operand 6603 states and 9616 transitions. Second operand has 50 states, 50 states have (on average 12.32) internal successors, (616), 49 states have internal predecessors, (616), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:33:00,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:02,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:04,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:06,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:08,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:11,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:13,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:15,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:16,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:19,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:21,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:33:23,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:47,166 INFO L93 Difference]: Finished difference Result 60848 states and 85800 transitions. [2022-03-20 12:34:47,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 529 states. [2022-03-20 12:34:47,166 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 12.32) internal successors, (616), 49 states have internal predecessors, (616), 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 327 [2022-03-20 12:34:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:47,247 INFO L225 Difference]: With dead ends: 60848 [2022-03-20 12:34:47,247 INFO L226 Difference]: Without dead ends: 54273 [2022-03-20 12:34:47,276 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1520 GetRequests, 896 SyntacticMatches, 59 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155550 ImplicationChecksByTransitivity, 77.5s TimeCoverageRelationStatistics Valid=21842, Invalid=299070, Unknown=10, NotChecked=0, Total=320922 [2022-03-20 12:34:47,276 INFO L913 BasicCegarLoop]: 1065 mSDtfsCounter, 6060 mSDsluCounter, 24704 mSDsCounter, 0 mSdLazyCounter, 26374 mSolverCounterSat, 1076 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6060 SdHoareTripleChecker+Valid, 25769 SdHoareTripleChecker+Invalid, 33183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1076 IncrementalHoareTripleChecker+Valid, 26374 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 5723 IncrementalHoareTripleChecker+Unchecked, 50.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:47,276 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6060 Valid, 25769 Invalid, 33183 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1076 Valid, 26374 Invalid, 10 Unknown, 5723 Unchecked, 50.2s Time] [2022-03-20 12:34:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54273 states. [2022-03-20 12:34:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54273 to 10495. [2022-03-20 12:34:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10495 states, 10490 states have (on average 1.5170638703527168) internal successors, (15914), 10490 states have internal predecessors, (15914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:47,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10495 states to 10495 states and 15918 transitions. [2022-03-20 12:34:47,893 INFO L78 Accepts]: Start accepts. Automaton has 10495 states and 15918 transitions. Word has length 327 [2022-03-20 12:34:47,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:47,893 INFO L478 AbstractCegarLoop]: Abstraction has 10495 states and 15918 transitions. [2022-03-20 12:34:47,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 12.32) internal successors, (616), 49 states have internal predecessors, (616), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 10495 states and 15918 transitions. [2022-03-20 12:34:47,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-03-20 12:34:47,903 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:47,903 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-20 12:34:47,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 12:34:48,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:34:48,119 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:48,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1862554437, now seen corresponding path program 1 times [2022-03-20 12:34:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:48,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673458197] [2022-03-20 12:34:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-20 12:34:48,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:48,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673458197] [2022-03-20 12:34:48,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673458197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:48,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:48,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:48,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885965834] [2022-03-20 12:34:48,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:48,258 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:48,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:48,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:48,258 INFO L87 Difference]: Start difference. First operand 10495 states and 15918 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:50,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:53,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:54,450 INFO L93 Difference]: Finished difference Result 21114 states and 31980 transitions. [2022-03-20 12:34:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:34:54,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 328 [2022-03-20 12:34:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:54,464 INFO L225 Difference]: With dead ends: 21114 [2022-03-20 12:34:54,464 INFO L226 Difference]: Without dead ends: 10647 [2022-03-20 12:34:54,474 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:34:54,475 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:54,475 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 581 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 12:34:54,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-03-20 12:34:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 10495. [2022-03-20 12:34:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10495 states, 10490 states have (on average 1.5161105815061964) internal successors, (15904), 10490 states have internal predecessors, (15904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10495 states to 10495 states and 15908 transitions. [2022-03-20 12:34:54,871 INFO L78 Accepts]: Start accepts. Automaton has 10495 states and 15908 transitions. Word has length 328 [2022-03-20 12:34:54,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:54,871 INFO L478 AbstractCegarLoop]: Abstraction has 10495 states and 15908 transitions. [2022-03-20 12:34:54,871 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 10495 states and 15908 transitions. [2022-03-20 12:34:54,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-03-20 12:34:54,880 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:54,880 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:54,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-20 12:34:54,881 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:54,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash 552922059, now seen corresponding path program 1 times [2022-03-20 12:34:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:54,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908172805] [2022-03-20 12:34:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:54,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-03-20 12:34:55,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:55,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908172805] [2022-03-20 12:34:55,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908172805] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:34:55,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917021080] [2022-03-20 12:34:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:55,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:34:55,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:34:55,037 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:34:55,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 12:34:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:56,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-20 12:34:56,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:34:56,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:34:56,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:34:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-03-20 12:34:56,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 12:34:56,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917021080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:56,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 12:34:56,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-03-20 12:34:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613043828] [2022-03-20 12:34:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:56,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:34:56,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:56,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:34:56,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:34:56,549 INFO L87 Difference]: Start difference. First operand 10495 states and 15908 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:58,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:34:58,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:34:58,816 INFO L93 Difference]: Finished difference Result 21479 states and 32499 transitions. [2022-03-20 12:34:58,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:34:58,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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 328 [2022-03-20 12:34:58,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:34:58,828 INFO L225 Difference]: With dead ends: 21479 [2022-03-20 12:34:58,828 INFO L226 Difference]: Without dead ends: 11012 [2022-03-20 12:34:58,838 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:34:58,838 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 47 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:34:58,838 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 609 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 12:34:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2022-03-20 12:34:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 10730. [2022-03-20 12:34:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10730 states, 10725 states have (on average 1.5145920745920747) internal successors, (16244), 10725 states have internal predecessors, (16244), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10730 states to 10730 states and 16248 transitions. [2022-03-20 12:34:59,222 INFO L78 Accepts]: Start accepts. Automaton has 10730 states and 16248 transitions. Word has length 328 [2022-03-20 12:34:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:34:59,222 INFO L478 AbstractCegarLoop]: Abstraction has 10730 states and 16248 transitions. [2022-03-20 12:34:59,222 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:34:59,222 INFO L276 IsEmpty]: Start isEmpty. Operand 10730 states and 16248 transitions. [2022-03-20 12:34:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-03-20 12:34:59,232 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:34:59,232 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:34:59,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 12:34:59,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:34:59,447 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:34:59,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:34:59,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1376539798, now seen corresponding path program 1 times [2022-03-20 12:34:59,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:34:59,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170475913] [2022-03-20 12:34:59,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:34:59,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:34:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:59,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:34:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:34:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-03-20 12:34:59,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:34:59,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170475913] [2022-03-20 12:34:59,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170475913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:34:59,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:34:59,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:34:59,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286167380] [2022-03-20 12:34:59,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:34:59,620 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:34:59,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:34:59,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:34:59,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:34:59,620 INFO L87 Difference]: Start difference. First operand 10730 states and 16248 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:01,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:02,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:02,345 INFO L93 Difference]: Finished difference Result 21587 states and 32657 transitions. [2022-03-20 12:35:02,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:35:02,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 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 328 [2022-03-20 12:35:02,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:02,358 INFO L225 Difference]: With dead ends: 21587 [2022-03-20 12:35:02,359 INFO L226 Difference]: Without dead ends: 10885 [2022-03-20 12:35:02,369 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:35:02,369 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 26 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:02,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:35:02,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-20 12:35:02,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 10734. [2022-03-20 12:35:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10734 states, 10729 states have (on average 1.512815733059931) internal successors, (16231), 10729 states have internal predecessors, (16231), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10734 states to 10734 states and 16235 transitions. [2022-03-20 12:35:02,839 INFO L78 Accepts]: Start accepts. Automaton has 10734 states and 16235 transitions. Word has length 328 [2022-03-20 12:35:02,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:02,839 INFO L478 AbstractCegarLoop]: Abstraction has 10734 states and 16235 transitions. [2022-03-20 12:35:02,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:02,839 INFO L276 IsEmpty]: Start isEmpty. Operand 10734 states and 16235 transitions. [2022-03-20 12:35:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-03-20 12:35:02,859 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:02,860 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:02,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-20 12:35:02,860 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -442480446, now seen corresponding path program 1 times [2022-03-20 12:35:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:02,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156442961] [2022-03-20 12:35:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-20 12:35:02,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:02,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156442961] [2022-03-20 12:35:02,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156442961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:02,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:02,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:35:02,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287040598] [2022-03-20 12:35:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:02,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:35:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:02,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:35:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:35:02,986 INFO L87 Difference]: Start difference. First operand 10734 states and 16235 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:04,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:05,677 INFO L93 Difference]: Finished difference Result 21287 states and 32199 transitions. [2022-03-20 12:35:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:35:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 329 [2022-03-20 12:35:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:05,686 INFO L225 Difference]: With dead ends: 21287 [2022-03-20 12:35:05,687 INFO L226 Difference]: Without dead ends: 10581 [2022-03-20 12:35:05,691 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:35:05,691 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:05,691 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:35:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10581 states. [2022-03-20 12:35:06,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10581 to 10549. [2022-03-20 12:35:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10549 states, 10544 states have (on average 1.512329286798179) internal successors, (15946), 10544 states have internal predecessors, (15946), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10549 states to 10549 states and 15950 transitions. [2022-03-20 12:35:06,033 INFO L78 Accepts]: Start accepts. Automaton has 10549 states and 15950 transitions. Word has length 329 [2022-03-20 12:35:06,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:06,034 INFO L478 AbstractCegarLoop]: Abstraction has 10549 states and 15950 transitions. [2022-03-20 12:35:06,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:06,034 INFO L276 IsEmpty]: Start isEmpty. Operand 10549 states and 15950 transitions. [2022-03-20 12:35:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-03-20 12:35:06,042 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:06,043 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:06,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-20 12:35:06,043 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:06,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1053472, now seen corresponding path program 1 times [2022-03-20 12:35:06,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:06,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496725712] [2022-03-20 12:35:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:06,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:06,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 559 proven. 19 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-03-20 12:35:06,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:06,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496725712] [2022-03-20 12:35:06,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496725712] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:35:06,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768453508] [2022-03-20 12:35:06,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:06,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:06,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:35:06,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:35:06,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 12:35:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:07,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-20 12:35:07,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:35:07,595 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:35:07,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:35:07,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:35:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-03-20 12:35:07,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 12:35:07,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768453508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:07,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 12:35:07,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-03-20 12:35:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108971324] [2022-03-20 12:35:07,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:07,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:07,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:07,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:35:07,756 INFO L87 Difference]: Start difference. First operand 10549 states and 15950 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:09,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:10,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:10,424 INFO L93 Difference]: Finished difference Result 21397 states and 32308 transitions. [2022-03-20 12:35:10,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:10,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 329 [2022-03-20 12:35:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:10,435 INFO L225 Difference]: With dead ends: 21397 [2022-03-20 12:35:10,436 INFO L226 Difference]: Without dead ends: 10876 [2022-03-20 12:35:10,445 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:35:10,445 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 48 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:10,445 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 609 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:35:10,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10876 states. [2022-03-20 12:35:10,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10876 to 10594. [2022-03-20 12:35:10,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10594 states, 10589 states have (on average 1.512040797053546) internal successors, (16011), 10589 states have internal predecessors, (16011), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10594 states to 10594 states and 16015 transitions. [2022-03-20 12:35:10,785 INFO L78 Accepts]: Start accepts. Automaton has 10594 states and 16015 transitions. Word has length 329 [2022-03-20 12:35:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:10,785 INFO L478 AbstractCegarLoop]: Abstraction has 10594 states and 16015 transitions. [2022-03-20 12:35:10,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10594 states and 16015 transitions. [2022-03-20 12:35:10,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 12:35:10,794 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:10,794 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:10,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-20 12:35:11,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:11,018 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:11,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1379910565, now seen corresponding path program 1 times [2022-03-20 12:35:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:11,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789682553] [2022-03-20 12:35:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:11,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-03-20 12:35:11,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:11,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789682553] [2022-03-20 12:35:11,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789682553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:11,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:11,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:35:11,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477595443] [2022-03-20 12:35:11,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:11,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:35:11,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:11,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:35:11,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:35:11,401 INFO L87 Difference]: Start difference. First operand 10594 states and 16015 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:12,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:14,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:16,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:18,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:19,529 INFO L93 Difference]: Finished difference Result 30707 states and 46076 transitions. [2022-03-20 12:35:19,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:35:19,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 330 [2022-03-20 12:35:19,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:19,552 INFO L225 Difference]: With dead ends: 30707 [2022-03-20 12:35:19,552 INFO L226 Difference]: Without dead ends: 20141 [2022-03-20 12:35:19,564 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:35:19,565 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 139 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:19,565 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 514 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 319 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 12:35:19,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20141 states. [2022-03-20 12:35:20,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20141 to 20139. [2022-03-20 12:35:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20139 states, 20134 states have (on average 1.4815237906029601) internal successors, (29829), 20134 states have internal predecessors, (29829), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20139 states to 20139 states and 29833 transitions. [2022-03-20 12:35:20,325 INFO L78 Accepts]: Start accepts. Automaton has 20139 states and 29833 transitions. Word has length 330 [2022-03-20 12:35:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:20,325 INFO L478 AbstractCegarLoop]: Abstraction has 20139 states and 29833 transitions. [2022-03-20 12:35:20,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 20139 states and 29833 transitions. [2022-03-20 12:35:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 12:35:20,346 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:20,346 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:20,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-20 12:35:20,346 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash -370537459, now seen corresponding path program 1 times [2022-03-20 12:35:20,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:20,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136007653] [2022-03-20 12:35:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-03-20 12:35:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:20,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136007653] [2022-03-20 12:35:20,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136007653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:35:20,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:35:20,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:35:20,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895441769] [2022-03-20 12:35:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:20,475 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:35:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:35:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:35:20,476 INFO L87 Difference]: Start difference. First operand 20139 states and 29833 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:22,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:23,707 INFO L93 Difference]: Finished difference Result 40646 states and 60164 transitions. [2022-03-20 12:35:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:35:23,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 330 [2022-03-20 12:35:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:23,731 INFO L225 Difference]: With dead ends: 40646 [2022-03-20 12:35:23,731 INFO L226 Difference]: Without dead ends: 20553 [2022-03-20 12:35:23,749 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:35:23,750 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 43 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:23,750 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 596 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:35:23,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20553 states. [2022-03-20 12:35:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20553 to 20049. [2022-03-20 12:35:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20049 states, 20044 states have (on average 1.4806924765515865) internal successors, (29679), 20044 states have internal predecessors, (29679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:24,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20049 states to 20049 states and 29683 transitions. [2022-03-20 12:35:24,530 INFO L78 Accepts]: Start accepts. Automaton has 20049 states and 29683 transitions. Word has length 330 [2022-03-20 12:35:24,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:24,530 INFO L478 AbstractCegarLoop]: Abstraction has 20049 states and 29683 transitions. [2022-03-20 12:35:24,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:24,530 INFO L276 IsEmpty]: Start isEmpty. Operand 20049 states and 29683 transitions. [2022-03-20 12:35:24,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 12:35:24,548 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:24,548 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:24,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-20 12:35:24,548 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:24,549 INFO L85 PathProgramCache]: Analyzing trace with hash 958280115, now seen corresponding path program 1 times [2022-03-20 12:35:24,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:24,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018422833] [2022-03-20 12:35:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:24,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:24,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 570 proven. 13 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2022-03-20 12:35:24,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:24,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018422833] [2022-03-20 12:35:24,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018422833] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:35:24,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946453725] [2022-03-20 12:35:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:24,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:24,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:35:24,700 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:35:24,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 12:35:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:25,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 12:35:25,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:35:26,000 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:35:26,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:35:26,039 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:35:26,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:35:26,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:35:26,212 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:35:26,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:35:26,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:35:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 565 proven. 93 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-03-20 12:35:26,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:35:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-20 12:35:26,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946453725] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:35:26,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:35:26,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 12:35:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694241210] [2022-03-20 12:35:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:35:26,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:35:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:26,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:35:26,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:35:26,706 INFO L87 Difference]: Start difference. First operand 20049 states and 29683 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:28,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:35:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:35:29,793 INFO L93 Difference]: Finished difference Result 41243 states and 60911 transitions. [2022-03-20 12:35:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:35:29,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 330 [2022-03-20 12:35:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:35:29,815 INFO L225 Difference]: With dead ends: 41243 [2022-03-20 12:35:29,815 INFO L226 Difference]: Without dead ends: 21240 [2022-03-20 12:35:29,829 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 12:35:29,830 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 98 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:35:29,830 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 417 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:35:29,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21240 states. [2022-03-20 12:35:30,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21240 to 20049. [2022-03-20 12:35:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20049 states, 20044 states have (on average 1.478646976651367) internal successors, (29638), 20044 states have internal predecessors, (29638), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:30,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20049 states to 20049 states and 29642 transitions. [2022-03-20 12:35:30,627 INFO L78 Accepts]: Start accepts. Automaton has 20049 states and 29642 transitions. Word has length 330 [2022-03-20 12:35:30,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:35:30,628 INFO L478 AbstractCegarLoop]: Abstraction has 20049 states and 29642 transitions. [2022-03-20 12:35:30,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:30,628 INFO L276 IsEmpty]: Start isEmpty. Operand 20049 states and 29642 transitions. [2022-03-20 12:35:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 12:35:30,645 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:35:30,646 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:35:30,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 12:35:30,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:30,863 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:35:30,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:35:30,864 INFO L85 PathProgramCache]: Analyzing trace with hash 83727452, now seen corresponding path program 1 times [2022-03-20 12:35:30,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:35:30,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717978812] [2022-03-20 12:35:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:30,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:35:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:31,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:35:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 454 proven. 362 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-20 12:35:31,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:35:31,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717978812] [2022-03-20 12:35:31,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717978812] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:35:31,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236047536] [2022-03-20 12:35:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:35:31,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:35:31,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:35:31,484 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:35:31,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 12:35:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:35:32,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 145 conjunts are in the unsatisfiable core [2022-03-20 12:35:32,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:35:32,850 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:35:32,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:35:32,976 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-20 12:35:32,976 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 42 treesize of output 38 [2022-03-20 12:35:32,981 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:35:33,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:35:33,012 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-03-20 12:35:33,012 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 33 treesize of output 26 [2022-03-20 12:35:33,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:33,298 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 12:35:33,298 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 116 treesize of output 123 [2022-03-20 12:35:33,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:33,330 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 12:35:33,331 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 105 treesize of output 112 [2022-03-20 12:35:33,373 INFO L356 Elim1Store]: treesize reduction 50, result has 51.5 percent of original size [2022-03-20 12:35:33,374 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 34 treesize of output 70 [2022-03-20 12:35:34,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 199 [2022-03-20 12:35:34,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:34,446 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 235 treesize of output 199 [2022-03-20 12:35:34,480 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-20 12:35:34,481 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 235 treesize of output 248 [2022-03-20 12:35:39,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,631 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 292 treesize of output 234 [2022-03-20 12:35:39,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,637 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 292 treesize of output 234 [2022-03-20 12:35:39,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,659 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 12:35:39,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 292 treesize of output 298 [2022-03-20 12:35:39,898 INFO L356 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-03-20 12:35:39,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 203 treesize of output 181 [2022-03-20 12:35:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 169 treesize of output 125 [2022-03-20 12:35:39,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,927 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-03-20 12:35:39,927 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 133 treesize of output 96 [2022-03-20 12:35:39,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:35:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:39,941 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 12:35:39,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 74 [2022-03-20 12:35:40,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 12:35:40,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,070 INFO L356 Elim1Store]: treesize reduction 148, result has 22.5 percent of original size [2022-03-20 12:35:40,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 135 treesize of output 131 [2022-03-20 12:35:40,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:40,077 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 143 treesize of output 97 [2022-03-20 12:35:41,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:41,008 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 [2022-03-20 12:35:41,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:41,039 INFO L356 Elim1Store]: treesize reduction 220, result has 14.4 percent of original size [2022-03-20 12:35:41,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 134 treesize of output 109 [2022-03-20 12:35:41,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:41,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:41,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:41,045 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 136 treesize of output 102 [2022-03-20 12:35:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,274 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 136 treesize of output 102 [2022-03-20 12:35:42,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,304 INFO L356 Elim1Store]: treesize reduction 220, result has 14.4 percent of original size [2022-03-20 12:35:42,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 143 treesize of output 112 [2022-03-20 12:35:42,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,310 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 35 treesize of output 34 [2022-03-20 12:35:42,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,390 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 35 treesize of output 34 [2022-03-20 12:35:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,412 INFO L356 Elim1Store]: treesize reduction 174, result has 17.5 percent of original size [2022-03-20 12:35:42,413 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 5 case distinctions, treesize of input 128 treesize of output 109 [2022-03-20 12:35:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:42,417 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 130 treesize of output 96 [2022-03-20 12:35:43,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:43,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:43,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:43,948 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 90 [2022-03-20 12:35:43,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 12:35:43,990 INFO L356 Elim1Store]: treesize reduction 250, result has 18.3 percent of original size [2022-03-20 12:35:43,990 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 146 treesize of output 131 [2022-03-20 12:35:43,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,014 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-20 12:35:44,014 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 148 treesize of output 105 [2022-03-20 12:35:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,325 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 135 treesize of output 105 [2022-03-20 12:35:44,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,373 INFO L356 Elim1Store]: treesize reduction 322, result has 10.3 percent of original size [2022-03-20 12:35:44,374 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 5 case distinctions, treesize of input 143 treesize of output 128 [2022-03-20 12:35:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:44,385 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 59 treesize of output 65 [2022-03-20 12:35:46,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,057 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 130 treesize of output 96 [2022-03-20 12:35:46,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,065 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 54 treesize of output 56 [2022-03-20 12:35:46,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,090 INFO L356 Elim1Store]: treesize reduction 174, result has 17.5 percent of original size [2022-03-20 12:35:46,091 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 5 case distinctions, treesize of input 138 treesize of output 119 [2022-03-20 12:35:46,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,198 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 62 treesize of output 38 [2022-03-20 12:35:46,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:35:46,202 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 128 treesize of output 74 [2022-03-20 12:35:46,231 INFO L356 Elim1Store]: treesize reduction 158, result has 16.8 percent of original size [2022-03-20 12:35:46,231 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 88 treesize of output 79 [2022-03-20 12:35:46,337 INFO L356 Elim1Store]: treesize reduction 250, result has 15.5 percent of original size [2022-03-20 12:35:46,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 72 [2022-03-20 12:35:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 126 proven. 783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:35:46,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:35:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 550 proven. 229 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-20 12:35:50,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236047536] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 12:35:50,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 12:35:50,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 26, 13] total 50 [2022-03-20 12:35:50,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297694841] [2022-03-20 12:35:50,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 12:35:50,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-20 12:35:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:35:50,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-20 12:35:50,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2062, Unknown=0, NotChecked=0, Total=2450 [2022-03-20 12:35:50,624 INFO L87 Difference]: Start difference. First operand 20049 states and 29642 transitions. Second operand has 50 states, 50 states have (on average 13.88) internal successors, (694), 49 states have internal predecessors, (694), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:35:52,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:37:00,378 WARN L232 SmtUtils]: Spent 18.42s on a formula simplification. DAG size of input: 96 DAG size of output: 88 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)