/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.13.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 09:56:41,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 09:56:41,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 09:56:41,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 09:56:41,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 09:56:41,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 09:56:41,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 09:56:41,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 09:56:41,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 09:56:41,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 09:56:41,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 09:56:41,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 09:56:41,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 09:56:41,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 09:56:41,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 09:56:41,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 09:56:41,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 09:56:41,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 09:56:41,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 09:56:41,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 09:56:41,166 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 09:56:41,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 09:56:41,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 09:56:41,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 09:56:41,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 09:56:41,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 09:56:41,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 09:56:41,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 09:56:41,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 09:56:41,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 09:56:41,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 09:56:41,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 09:56:41,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 09:56:41,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 09:56:41,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 09:56:41,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 09:56:41,209 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 09:56:41,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 09:56:41,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 09:56:41,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 09:56:41,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:56:41,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 09:56:41,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 09:56:41,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 09:56:41,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 09:56:41,213 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 09:56:41,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 09:56:41,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 09:56:41,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 09:56:41,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 09:56:41,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 09:56:41,423 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 09:56:41,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c [2022-04-05 09:56:41,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1534895a/5c50bd45e7404867a9d0c6cefaa1d084/FLAG1d19c97a5 [2022-04-05 09:56:41,923 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 09:56:41,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.13.i.cil-2.c [2022-04-05 09:56:41,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1534895a/5c50bd45e7404867a9d0c6cefaa1d084/FLAG1d19c97a5 [2022-04-05 09:56:42,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1534895a/5c50bd45e7404867a9d0c6cefaa1d084 [2022-04-05 09:56:42,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 09:56:42,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 09:56:42,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 09:56:42,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 09:56:42,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 09:56:42,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3885c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42, skipping insertion in model container [2022-04-05 09:56:42,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 09:56:42,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 09:56:42,562 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.13.i.cil-2.c[74353,74366] [2022-04-05 09:56:42,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:56:42,574 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 09:56:42,684 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.13.i.cil-2.c[74353,74366] [2022-04-05 09:56:42,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:56:42,700 INFO L208 MainTranslator]: Completed translation [2022-04-05 09:56:42,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42 WrapperNode [2022-04-05 09:56:42,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 09:56:42,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 09:56:42,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 09:56:42,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 09:56:42,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 09:56:42,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 09:56:42,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 09:56:42,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 09:56:42,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (1/1) ... [2022-04-05 09:56:42,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:56:42,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:56:42,853 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) [2022-04-05 09:56:42,860 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 [2022-04-05 09:56:42,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 09:56:42,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 09:56:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 09:56:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 09:56:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 09:56:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 09:56:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 09:56:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 09:56:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 09:56:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 09:56:43,074 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 09:56:43,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 09:56:44,112 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 09:56:44,423 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 09:56:44,423 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 09:56:44,432 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 09:56:44,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 09:56:44,437 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 09:56:44,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:56:44 BoogieIcfgContainer [2022-04-05 09:56:44,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 09:56:44,439 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 09:56:44,439 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 09:56:44,439 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 09:56:44,441 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:56:44" (1/1) ... [2022-04-05 09:56:44,442 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 09:56:44,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:56:44 BasicIcfg [2022-04-05 09:56:44,472 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 09:56:44,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 09:56:44,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 09:56:44,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 09:56:44,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 09:56:42" (1/4) ... [2022-04-05 09:56:44,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf3c2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:56:44, skipping insertion in model container [2022-04-05 09:56:44,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:56:42" (2/4) ... [2022-04-05 09:56:44,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf3c2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:56:44, skipping insertion in model container [2022-04-05 09:56:44,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:56:44" (3/4) ... [2022-04-05 09:56:44,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf3c2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 09:56:44, skipping insertion in model container [2022-04-05 09:56:44,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:56:44" (4/4) ... [2022-04-05 09:56:44,477 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.13.i.cil-2.cqvasr [2022-04-05 09:56:44,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 09:56:44,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 09:56:44,506 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 09:56:44,510 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 [2022-04-05 09:56:44,510 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 09:56:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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) [2022-04-05 09:56:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-05 09:56:44,525 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:44,526 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] [2022-04-05 09:56:44,526 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:44,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-04-05 09:56:44,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:44,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320314431] [2022-04-05 09:56:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:44,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:56:44,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:44,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320314431] [2022-04-05 09:56:44,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320314431] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:44,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:44,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:44,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579361646] [2022-04-05 09:56:44,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:44,879 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:44,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:44,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:44,897 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:47,648 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-04-05 09:56:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:47,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-04-05 09:56:47,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:47,657 INFO L225 Difference]: With dead ends: 430 [2022-04-05 09:56:47,657 INFO L226 Difference]: Without dead ends: 261 [2022-04-05 09:56:47,659 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 [2022-04-05 09:56:47,661 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:47,662 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-05 09:56:47,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-05 09:56:47,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-04-05 09:56:47,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:47,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-04-05 09:56:47,692 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-04-05 09:56:47,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:47,692 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-04-05 09:56:47,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:47,693 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-04-05 09:56:47,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-04-05 09:56:47,694 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:47,694 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] [2022-04-05 09:56:47,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 09:56:47,694 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:47,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:47,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1744879992, now seen corresponding path program 1 times [2022-04-05 09:56:47,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:47,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751972421] [2022-04-05 09:56:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:47,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:47,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:56:47,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:47,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751972421] [2022-04-05 09:56:47,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751972421] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:47,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:47,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:47,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894162831] [2022-04-05 09:56:47,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:47,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:47,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:47,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:47,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:47,812 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:50,628 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 [] [2022-04-05 09:56:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:51,056 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-04-05 09:56:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-04-05 09:56:51,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:51,058 INFO L225 Difference]: With dead ends: 444 [2022-04-05 09:56:51,058 INFO L226 Difference]: Without dead ends: 289 [2022-04-05 09:56:51,059 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 [2022-04-05 09:56:51,060 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:51,060 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-05 09:56:51,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-04-05 09:56:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-04-05 09:56:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-04-05 09:56:51,071 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-04-05 09:56:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:51,071 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-04-05 09:56:51,071 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:51,071 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-04-05 09:56:51,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-05 09:56:51,072 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:51,072 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] [2022-04-05 09:56:51,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 09:56:51,073 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:51,073 INFO L85 PathProgramCache]: Analyzing trace with hash -749150668, now seen corresponding path program 1 times [2022-04-05 09:56:51,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:51,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063563816] [2022-04-05 09:56:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:51,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:56:51,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:51,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063563816] [2022-04-05 09:56:51,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063563816] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:51,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:51,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:51,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743845408] [2022-04-05 09:56:51,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:51,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:51,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:51,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:51,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:51,200 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:54,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:54,332 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-04-05 09:56:54,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:56:54,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-04-05 09:56:54,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:54,334 INFO L225 Difference]: With dead ends: 503 [2022-04-05 09:56:54,334 INFO L226 Difference]: Without dead ends: 319 [2022-04-05 09:56:54,335 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 [2022-04-05 09:56:54,336 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:54,336 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-05 09:56:54,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-04-05 09:56:54,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-04-05 09:56:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-04-05 09:56:54,346 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-04-05 09:56:54,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:54,346 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-04-05 09:56:54,346 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:54,347 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-04-05 09:56:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-05 09:56:54,348 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:54,348 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] [2022-04-05 09:56:54,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 09:56:54,348 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1747882016, now seen corresponding path program 1 times [2022-04-05 09:56:54,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:54,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934986748] [2022-04-05 09:56:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:54,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:54,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:56:54,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:54,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934986748] [2022-04-05 09:56:54,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934986748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:56:54,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:56:54,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:56:54,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452290117] [2022-04-05 09:56:54,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:56:54,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:56:54,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:54,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:56:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:56:54,477 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. 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) [2022-04-05 09:56:56,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:58,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:00,925 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 [] [2022-04-05 09:57:01,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:01,370 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-04-05 09:57:01,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:01,370 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 [2022-04-05 09:57:01,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:01,372 INFO L225 Difference]: With dead ends: 553 [2022-04-05 09:57:01,372 INFO L226 Difference]: Without dead ends: 329 [2022-04-05 09:57:01,374 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 [2022-04-05 09:57:01,374 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 122 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:01,374 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:57:01,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-04-05 09:57:01,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-04-05 09:57:01,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-04-05 09:57:01,383 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-04-05 09:57:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:01,383 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-04-05 09:57:01,383 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) [2022-04-05 09:57:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-04-05 09:57:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-05 09:57:01,385 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:01,385 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-04-05 09:57:01,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 09:57:01,385 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1803301705, now seen corresponding path program 1 times [2022-04-05 09:57:01,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:01,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141879074] [2022-04-05 09:57:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-04-05 09:57:01,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:01,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141879074] [2022-04-05 09:57:01,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141879074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:01,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:01,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:01,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718924075] [2022-04-05 09:57:01,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:01,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:01,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:01,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:01,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:01,521 INFO L87 Difference]: Start difference. First operand 250 states and 409 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) [2022-04-05 09:57:02,679 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 [] [2022-04-05 09:57:04,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:05,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:05,289 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-04-05 09:57:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:05,289 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 70 [2022-04-05 09:57:05,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:05,291 INFO L225 Difference]: With dead ends: 513 [2022-04-05 09:57:05,291 INFO L226 Difference]: Without dead ends: 278 [2022-04-05 09:57:05,291 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 [2022-04-05 09:57:05,292 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:05,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 09:57:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-04-05 09:57:05,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-04-05 09:57:05,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-04-05 09:57:05,299 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-04-05 09:57:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:05,299 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-04-05 09:57:05,300 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) [2022-04-05 09:57:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-04-05 09:57:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 09:57:05,301 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:05,301 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:05,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 09:57:05,302 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:05,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash 63867932, now seen corresponding path program 1 times [2022-04-05 09:57:05,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:05,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448177911] [2022-04-05 09:57:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:05,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:05,391 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:05,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:05,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448177911] [2022-04-05 09:57:05,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448177911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:05,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:05,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:05,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133645982] [2022-04-05 09:57:05,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:05,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:05,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:05,394 INFO L87 Difference]: Start difference. First operand 261 states and 428 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) [2022-04-05 09:57:06,443 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 [] [2022-04-05 09:57:08,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:10,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:12,236 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 [] [2022-04-05 09:57:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:12,572 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-04-05 09:57:12,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:12,573 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 83 [2022-04-05 09:57:12,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:12,574 INFO L225 Difference]: With dead ends: 513 [2022-04-05 09:57:12,574 INFO L226 Difference]: Without dead ends: 278 [2022-04-05 09:57:12,575 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 [2022-04-05 09:57:12,575 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:12,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-05 09:57:12,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-04-05 09:57:12,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-04-05 09:57:12,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-04-05 09:57:12,582 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-04-05 09:57:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:12,582 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-04-05 09:57:12,582 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) [2022-04-05 09:57:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-04-05 09:57:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 09:57:12,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:12,584 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:12,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 09:57:12,584 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:12,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:12,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1024321373, now seen corresponding path program 1 times [2022-04-05 09:57:12,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:12,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529587632] [2022-04-05 09:57:12,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:12,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:12,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:12,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529587632] [2022-04-05 09:57:12,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529587632] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:12,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:12,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:12,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838760132] [2022-04-05 09:57:12,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:12,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:12,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:12,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:12,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:12,674 INFO L87 Difference]: Start difference. First operand 261 states and 427 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) [2022-04-05 09:57:14,504 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 [] [2022-04-05 09:57:15,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:17,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:17,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:17,480 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-04-05 09:57:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:17,480 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 84 [2022-04-05 09:57:17,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:17,481 INFO L225 Difference]: With dead ends: 574 [2022-04-05 09:57:17,482 INFO L226 Difference]: Without dead ends: 339 [2022-04-05 09:57:17,482 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 [2022-04-05 09:57:17,483 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:17,483 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-05 09:57:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-04-05 09:57:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-04-05 09:57:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-04-05 09:57:17,489 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-04-05 09:57:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:17,489 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-04-05 09:57:17,489 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) [2022-04-05 09:57:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-04-05 09:57:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 09:57:17,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:17,490 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:17,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 09:57:17,490 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:17,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash 992055491, now seen corresponding path program 1 times [2022-04-05 09:57:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:17,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71601876] [2022-04-05 09:57:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:17,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71601876] [2022-04-05 09:57:17,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71601876] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:17,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:17,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725100384] [2022-04-05 09:57:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:17,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:17,605 INFO L87 Difference]: Start difference. First operand 261 states and 423 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) [2022-04-05 09:57:19,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:21,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:22,994 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-04-05 09:57:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:22,994 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 84 [2022-04-05 09:57:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:22,995 INFO L225 Difference]: With dead ends: 512 [2022-04-05 09:57:22,996 INFO L226 Difference]: Without dead ends: 277 [2022-04-05 09:57:22,996 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 [2022-04-05 09:57:22,996 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:22,997 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:57:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-04-05 09:57:23,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-04-05 09:57:23,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-04-05 09:57:23,003 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-04-05 09:57:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:23,003 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-04-05 09:57:23,003 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) [2022-04-05 09:57:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-04-05 09:57:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 09:57:23,003 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:23,004 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:23,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 09:57:23,004 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:23,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:23,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1577446659, now seen corresponding path program 1 times [2022-04-05 09:57:23,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:23,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944939681] [2022-04-05 09:57:23,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:23,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:23,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:23,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944939681] [2022-04-05 09:57:23,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944939681] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:23,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:23,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:23,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479124852] [2022-04-05 09:57:23,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:23,162 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:23,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:23,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:23,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:23,163 INFO L87 Difference]: Start difference. First operand 261 states and 422 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) [2022-04-05 09:57:24,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:26,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:28,810 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 [] [2022-04-05 09:57:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:29,235 INFO L93 Difference]: Finished difference Result 574 states and 919 transitions. [2022-04-05 09:57:29,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:29,235 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 84 [2022-04-05 09:57:29,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:29,236 INFO L225 Difference]: With dead ends: 574 [2022-04-05 09:57:29,236 INFO L226 Difference]: Without dead ends: 339 [2022-04-05 09:57:29,237 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 [2022-04-05 09:57:29,237 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:29,238 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:57:29,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-04-05 09:57:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-04-05 09:57:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-04-05 09:57:29,243 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-04-05 09:57:29,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:29,243 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-04-05 09:57:29,243 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) [2022-04-05 09:57:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-04-05 09:57:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 09:57:29,244 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:29,244 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:29,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 09:57:29,244 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:29,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:29,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1333437405, now seen corresponding path program 1 times [2022-04-05 09:57:29,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:29,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100225116] [2022-04-05 09:57:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:29,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:29,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:29,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100225116] [2022-04-05 09:57:29,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100225116] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:29,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:29,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843581372] [2022-04-05 09:57:29,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:29,336 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:29,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:29,336 INFO L87 Difference]: Start difference. First operand 261 states and 418 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) [2022-04-05 09:57:32,378 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 [] [2022-04-05 09:57:34,405 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 [] [2022-04-05 09:57:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:34,822 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-04-05 09:57:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:34,822 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 84 [2022-04-05 09:57:34,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:34,824 INFO L225 Difference]: With dead ends: 573 [2022-04-05 09:57:34,824 INFO L226 Difference]: Without dead ends: 338 [2022-04-05 09:57:34,824 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 [2022-04-05 09:57:34,825 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 141 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:34,825 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:57:34,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-05 09:57:34,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-04-05 09:57:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-04-05 09:57:34,830 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-04-05 09:57:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:34,830 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-04-05 09:57:34,830 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) [2022-04-05 09:57:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-04-05 09:57:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 09:57:34,831 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:34,831 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:34,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 09:57:34,831 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:34,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:34,831 INFO L85 PathProgramCache]: Analyzing trace with hash -628613252, now seen corresponding path program 1 times [2022-04-05 09:57:34,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:34,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159143051] [2022-04-05 09:57:34,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:34,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:34,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:34,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159143051] [2022-04-05 09:57:34,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159143051] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:34,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:34,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:34,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948392243] [2022-04-05 09:57:34,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:34,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:34,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:34,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:34,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:34,947 INFO L87 Difference]: Start difference. First operand 261 states and 414 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) [2022-04-05 09:57:37,774 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 [] [2022-04-05 09:57:39,799 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 [] [2022-04-05 09:57:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:40,493 INFO L93 Difference]: Finished difference Result 573 states and 904 transitions. [2022-04-05 09:57:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:40,493 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 85 [2022-04-05 09:57:40,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:40,494 INFO L225 Difference]: With dead ends: 573 [2022-04-05 09:57:40,494 INFO L226 Difference]: Without dead ends: 338 [2022-04-05 09:57:40,495 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 [2022-04-05 09:57:40,495 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:40,495 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:57:40,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-05 09:57:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-04-05 09:57:40,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-04-05 09:57:40,500 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-04-05 09:57:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:40,501 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-04-05 09:57:40,502 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) [2022-04-05 09:57:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-04-05 09:57:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-05 09:57:40,502 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:40,502 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:40,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 09:57:40,503 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:40,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1762044185, now seen corresponding path program 1 times [2022-04-05 09:57:40,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:40,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527754260] [2022-04-05 09:57:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:40,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:40,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527754260] [2022-04-05 09:57:40,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527754260] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:40,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:40,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:40,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206805345] [2022-04-05 09:57:40,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:40,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:40,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:40,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:40,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:40,590 INFO L87 Difference]: Start difference. First operand 261 states and 410 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) [2022-04-05 09:57:41,958 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 [] [2022-04-05 09:57:44,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:46,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:47,245 INFO L93 Difference]: Finished difference Result 573 states and 897 transitions. [2022-04-05 09:57:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:47,246 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 86 [2022-04-05 09:57:47,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:47,247 INFO L225 Difference]: With dead ends: 573 [2022-04-05 09:57:47,247 INFO L226 Difference]: Without dead ends: 338 [2022-04-05 09:57:47,248 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 [2022-04-05 09:57:47,248 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 143 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:47,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 09:57:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-05 09:57:47,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-04-05 09:57:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-04-05 09:57:47,253 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-04-05 09:57:47,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:47,253 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-04-05 09:57:47,253 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) [2022-04-05 09:57:47,253 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-04-05 09:57:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-05 09:57:47,254 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:47,254 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:47,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 09:57:47,254 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:47,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:47,254 INFO L85 PathProgramCache]: Analyzing trace with hash -67928033, now seen corresponding path program 1 times [2022-04-05 09:57:47,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:47,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354569441] [2022-04-05 09:57:47,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:47,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:47,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:47,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354569441] [2022-04-05 09:57:47,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354569441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:47,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:47,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:47,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944957039] [2022-04-05 09:57:47,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:47,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:47,333 INFO L87 Difference]: Start difference. First operand 261 states and 406 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) [2022-04-05 09:57:48,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:50,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:51,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:52,543 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-04-05 09:57:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:52,543 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 87 [2022-04-05 09:57:52,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:52,544 INFO L225 Difference]: With dead ends: 499 [2022-04-05 09:57:52,544 INFO L226 Difference]: Without dead ends: 264 [2022-04-05 09:57:52,545 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 [2022-04-05 09:57:52,545 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:52,545 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 09:57:52,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-04-05 09:57:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-04-05 09:57:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-04-05 09:57:52,550 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-04-05 09:57:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:52,550 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-04-05 09:57:52,550 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) [2022-04-05 09:57:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-04-05 09:57:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-05 09:57:52,551 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:52,551 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-04-05 09:57:52,551 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 09:57:52,551 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:52,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1151267150, now seen corresponding path program 1 times [2022-04-05 09:57:52,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:52,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111615264] [2022-04-05 09:57:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:52,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:52,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-05 09:57:52,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111615264] [2022-04-05 09:57:52,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111615264] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:52,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:52,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931452040] [2022-04-05 09:57:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:52,640 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:52,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:52,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:52,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:52,641 INFO L87 Difference]: Start difference. First operand 261 states and 405 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) [2022-04-05 09:57:54,877 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 [] [2022-04-05 09:57:57,529 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 [] [2022-04-05 09:57:57,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:57,867 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-04-05 09:57:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:57,868 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 87 [2022-04-05 09:57:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:57,869 INFO L225 Difference]: With dead ends: 537 [2022-04-05 09:57:57,869 INFO L226 Difference]: Without dead ends: 302 [2022-04-05 09:57:57,869 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 [2022-04-05 09:57:57,870 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:57,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 09:57:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-04-05 09:57:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-04-05 09:57:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-04-05 09:57:57,875 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-04-05 09:57:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:57,875 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-04-05 09:57:57,875 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) [2022-04-05 09:57:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-04-05 09:57:57,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-04-05 09:57:57,876 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:57,876 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-04-05 09:57:57,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 09:57:57,876 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:57,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:57,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1763344841, now seen corresponding path program 1 times [2022-04-05 09:57:57,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:57,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422308068] [2022-04-05 09:57:57,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:57,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:57:57,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:57,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422308068] [2022-04-05 09:57:57,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422308068] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:57,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:57,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:57,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974897299] [2022-04-05 09:57:57,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:57,985 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:57,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:57,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:57,986 INFO L87 Difference]: Start difference. First operand 283 states and 438 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) [2022-04-05 09:57:59,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:01,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:03,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:05,901 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 [] [2022-04-05 09:58:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:06,227 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-04-05 09:58:06,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:06,227 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 100 [2022-04-05 09:58:06,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:06,228 INFO L225 Difference]: With dead ends: 557 [2022-04-05 09:58:06,228 INFO L226 Difference]: Without dead ends: 300 [2022-04-05 09:58:06,229 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 [2022-04-05 09:58:06,229 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:06,229 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 09:58:06,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-04-05 09:58:06,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-04-05 09:58:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:06,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-04-05 09:58:06,234 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-04-05 09:58:06,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:06,234 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-04-05 09:58:06,234 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) [2022-04-05 09:58:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-04-05 09:58:06,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-04-05 09:58:06,236 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:06,236 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-04-05 09:58:06,237 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 09:58:06,237 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:06,237 INFO L85 PathProgramCache]: Analyzing trace with hash 183034376, now seen corresponding path program 1 times [2022-04-05 09:58:06,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:06,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394439153] [2022-04-05 09:58:06,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:06,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:06,424 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-04-05 09:58:06,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:06,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394439153] [2022-04-05 09:58:06,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394439153] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:06,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:06,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:06,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098997142] [2022-04-05 09:58:06,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:06,425 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:06,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:06,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:06,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:06,427 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 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) [2022-04-05 09:58:07,662 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 [] [2022-04-05 09:58:09,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:11,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:12,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:12,684 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-04-05 09:58:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:12,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 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 101 [2022-04-05 09:58:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:12,689 INFO L225 Difference]: With dead ends: 568 [2022-04-05 09:58:12,689 INFO L226 Difference]: Without dead ends: 311 [2022-04-05 09:58:12,690 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 [2022-04-05 09:58:12,690 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:12,690 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:58:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-04-05 09:58:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-04-05 09:58:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-04-05 09:58:12,695 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-04-05 09:58:12,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:12,695 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-04-05 09:58:12,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 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) [2022-04-05 09:58:12,695 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-04-05 09:58:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-04-05 09:58:12,696 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:12,696 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2022-04-05 09:58:12,696 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 09:58:12,696 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:12,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:12,696 INFO L85 PathProgramCache]: Analyzing trace with hash 332221618, now seen corresponding path program 1 times [2022-04-05 09:58:12,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:12,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194780322] [2022-04-05 09:58:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:12,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:58:12,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:12,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194780322] [2022-04-05 09:58:12,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194780322] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:12,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:12,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:12,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069373144] [2022-04-05 09:58:12,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:12,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:12,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:12,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:12,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:12,818 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:13,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:15,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:17,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:19,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:19,745 INFO L93 Difference]: Finished difference Result 649 states and 999 transitions. [2022-04-05 09:58:19,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:19,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-04-05 09:58:19,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:19,746 INFO L225 Difference]: With dead ends: 649 [2022-04-05 09:58:19,746 INFO L226 Difference]: Without dead ends: 376 [2022-04-05 09:58:19,747 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 [2022-04-05 09:58:19,747 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:19,748 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:58:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-04-05 09:58:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-04-05 09:58:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-04-05 09:58:19,753 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-04-05 09:58:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:19,753 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-04-05 09:58:19,753 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-04-05 09:58:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-04-05 09:58:19,754 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:19,754 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2022-04-05 09:58:19,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 09:58:19,754 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:19,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1369020480, now seen corresponding path program 1 times [2022-04-05 09:58:19,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:19,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364035319] [2022-04-05 09:58:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:19,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-04-05 09:58:19,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:19,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364035319] [2022-04-05 09:58:19,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364035319] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:19,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:19,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:19,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720712051] [2022-04-05 09:58:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:19,927 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:19,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:19,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:19,928 INFO L87 Difference]: Start difference. First operand 299 states and 455 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) [2022-04-05 09:58:20,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:22,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:24,705 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 [] [2022-04-05 09:58:25,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:25,113 INFO L93 Difference]: Finished difference Result 639 states and 976 transitions. [2022-04-05 09:58:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:25,114 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 105 [2022-04-05 09:58:25,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:25,115 INFO L225 Difference]: With dead ends: 639 [2022-04-05 09:58:25,115 INFO L226 Difference]: Without dead ends: 366 [2022-04-05 09:58:25,115 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 [2022-04-05 09:58:25,116 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 134 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:25,116 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 374 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 09:58:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-04-05 09:58:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 299. [2022-04-05 09:58:25,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-04-05 09:58:25,121 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-04-05 09:58:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:25,121 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-04-05 09:58:25,121 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) [2022-04-05 09:58:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-04-05 09:58:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 09:58:25,122 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:25,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:25,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 09:58:25,122 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:25,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1497476783, now seen corresponding path program 1 times [2022-04-05 09:58:25,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:25,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071363226] [2022-04-05 09:58:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:25,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:58:25,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:25,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071363226] [2022-04-05 09:58:25,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071363226] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:25,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:25,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:25,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869551285] [2022-04-05 09:58:25,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:25,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:25,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:25,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:25,284 INFO L87 Difference]: Start difference. First operand 299 states and 450 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) [2022-04-05 09:58:27,292 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 [] [2022-04-05 09:58:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:27,766 INFO L93 Difference]: Finished difference Result 653 states and 989 transitions. [2022-04-05 09:58:27,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:27,766 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 109 [2022-04-05 09:58:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:27,768 INFO L225 Difference]: With dead ends: 653 [2022-04-05 09:58:27,768 INFO L226 Difference]: Without dead ends: 380 [2022-04-05 09:58:27,769 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 [2022-04-05 09:58:27,769 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 76 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:27,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 503 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 09:58:27,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-04-05 09:58:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 327. [2022-04-05 09:58:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-04-05 09:58:27,776 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-04-05 09:58:27,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:27,776 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-04-05 09:58:27,776 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) [2022-04-05 09:58:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-04-05 09:58:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 09:58:27,777 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:27,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:27,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 09:58:27,777 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash 330780464, now seen corresponding path program 1 times [2022-04-05 09:58:27,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:27,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631060835] [2022-04-05 09:58:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:27,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:27,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:58:27,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:27,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631060835] [2022-04-05 09:58:27,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631060835] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:27,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:27,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:27,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034707233] [2022-04-05 09:58:27,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:27,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:27,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:27,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:27,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:27,937 INFO L87 Difference]: Start difference. First operand 327 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:29,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:30,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:31,729 INFO L93 Difference]: Finished difference Result 735 states and 1112 transitions. [2022-04-05 09:58:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:31,729 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 109 [2022-04-05 09:58:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:31,731 INFO L225 Difference]: With dead ends: 735 [2022-04-05 09:58:31,731 INFO L226 Difference]: Without dead ends: 434 [2022-04-05 09:58:31,731 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 [2022-04-05 09:58:31,732 INFO L913 BasicCegarLoop]: 151 mSDtfsCounter, 122 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:31,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 09:58:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-04-05 09:58:31,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 325. [2022-04-05 09:58:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-04-05 09:58:31,738 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-04-05 09:58:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:31,738 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-04-05 09:58:31,738 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) [2022-04-05 09:58:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-04-05 09:58:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:58:31,739 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:31,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:31,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 09:58:31,739 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:31,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash 399122611, now seen corresponding path program 1 times [2022-04-05 09:58:31,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:31,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160757084] [2022-04-05 09:58:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:31,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:58:31,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:31,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160757084] [2022-04-05 09:58:31,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160757084] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:31,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:31,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053102797] [2022-04-05 09:58:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:31,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:31,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:31,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:31,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:31,823 INFO L87 Difference]: Start difference. First operand 325 states and 487 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) [2022-04-05 09:58:32,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:34,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:36,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:38,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:39,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:39,016 INFO L93 Difference]: Finished difference Result 767 states and 1162 transitions. [2022-04-05 09:58:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:39,016 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 110 [2022-04-05 09:58:39,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:39,018 INFO L225 Difference]: With dead ends: 767 [2022-04-05 09:58:39,018 INFO L226 Difference]: Without dead ends: 468 [2022-04-05 09:58:39,019 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 [2022-04-05 09:58:39,019 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:39,019 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 372 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-05 09:58:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-04-05 09:58:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 389. [2022-04-05 09:58:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5078125) internal successors, (579), 384 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 583 transitions. [2022-04-05 09:58:39,031 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 583 transitions. Word has length 110 [2022-04-05 09:58:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:39,031 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 583 transitions. [2022-04-05 09:58:39,031 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) [2022-04-05 09:58:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 583 transitions. [2022-04-05 09:58:39,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:58:39,032 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:39,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:39,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 09:58:39,032 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:39,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:39,033 INFO L85 PathProgramCache]: Analyzing trace with hash -314587267, now seen corresponding path program 1 times [2022-04-05 09:58:39,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:39,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103538464] [2022-04-05 09:58:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:39,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:39,198 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:58:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:39,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103538464] [2022-04-05 09:58:39,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103538464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:39,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:39,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:39,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276947150] [2022-04-05 09:58:39,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:39,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:39,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:39,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:39,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:39,199 INFO L87 Difference]: Start difference. First operand 389 states and 583 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) [2022-04-05 09:58:40,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:42,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:44,760 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 [] [2022-04-05 09:58:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:45,140 INFO L93 Difference]: Finished difference Result 828 states and 1246 transitions. [2022-04-05 09:58:45,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:45,140 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 110 [2022-04-05 09:58:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:45,141 INFO L225 Difference]: With dead ends: 828 [2022-04-05 09:58:45,142 INFO L226 Difference]: Without dead ends: 465 [2022-04-05 09:58:45,142 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 [2022-04-05 09:58:45,142 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 71 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:45,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:58:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-04-05 09:58:45,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 418. [2022-04-05 09:58:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 1.5036319612590798) internal successors, (621), 413 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:45,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 625 transitions. [2022-04-05 09:58:45,149 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 625 transitions. Word has length 110 [2022-04-05 09:58:45,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:45,149 INFO L478 AbstractCegarLoop]: Abstraction has 418 states and 625 transitions. [2022-04-05 09:58:45,150 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) [2022-04-05 09:58:45,150 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 625 transitions. [2022-04-05 09:58:45,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:58:45,150 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:45,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:45,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 09:58:45,151 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2122434788, now seen corresponding path program 1 times [2022-04-05 09:58:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101181533] [2022-04-05 09:58:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:45,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:45,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-04-05 09:58:45,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:45,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101181533] [2022-04-05 09:58:45,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101181533] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:45,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:45,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:45,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117480259] [2022-04-05 09:58:45,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:45,255 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:45,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:45,255 INFO L87 Difference]: Start difference. First operand 418 states and 625 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) [2022-04-05 09:58:48,165 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 [] [2022-04-05 09:58:50,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:52,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:52,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:52,598 INFO L93 Difference]: Finished difference Result 848 states and 1275 transitions. [2022-04-05 09:58:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:52,599 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 110 [2022-04-05 09:58:52,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:52,600 INFO L225 Difference]: With dead ends: 848 [2022-04-05 09:58:52,600 INFO L226 Difference]: Without dead ends: 456 [2022-04-05 09:58:52,601 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 [2022-04-05 09:58:52,601 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:52,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 432 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 09:58:52,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-04-05 09:58:52,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2022-04-05 09:58:52,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 437 states have (on average 1.5011441647597255) internal successors, (656), 437 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:52,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 660 transitions. [2022-04-05 09:58:52,608 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 660 transitions. Word has length 110 [2022-04-05 09:58:52,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:52,608 INFO L478 AbstractCegarLoop]: Abstraction has 442 states and 660 transitions. [2022-04-05 09:58:52,608 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) [2022-04-05 09:58:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 660 transitions. [2022-04-05 09:58:52,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 09:58:52,609 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:52,609 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] [2022-04-05 09:58:52,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 09:58:52,610 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:52,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash -149067405, now seen corresponding path program 1 times [2022-04-05 09:58:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:52,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040676453] [2022-04-05 09:58:52,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:58:52,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:52,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040676453] [2022-04-05 09:58:52,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040676453] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:52,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:52,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:52,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454558399] [2022-04-05 09:58:52,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:52,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:52,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:52,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:52,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:52,731 INFO L87 Difference]: Start difference. First operand 442 states and 660 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) [2022-04-05 09:58:55,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:57,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:58,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:58,859 INFO L93 Difference]: Finished difference Result 965 states and 1448 transitions. [2022-04-05 09:58:58,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:58,859 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 [2022-04-05 09:58:58,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:58,860 INFO L225 Difference]: With dead ends: 965 [2022-04-05 09:58:58,860 INFO L226 Difference]: Without dead ends: 549 [2022-04-05 09:58:58,861 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 [2022-04-05 09:58:58,861 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:58,862 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 09:58:58,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-04-05 09:58:58,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 479. [2022-04-05 09:58:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5021097046413503) internal successors, (712), 474 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:58,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 716 transitions. [2022-04-05 09:58:58,869 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 716 transitions. Word has length 122 [2022-04-05 09:58:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:58,869 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 716 transitions. [2022-04-05 09:58:58,869 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) [2022-04-05 09:58:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 716 transitions. [2022-04-05 09:58:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 09:58:58,870 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:58,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:58,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 09:58:58,870 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:58,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash -380141108, now seen corresponding path program 1 times [2022-04-05 09:58:58,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:58,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527481806] [2022-04-05 09:58:58,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:58,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:58,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-05 09:58:58,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:58,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527481806] [2022-04-05 09:58:58,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527481806] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:58,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:58,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:58,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657591698] [2022-04-05 09:58:58,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:58,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:58,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:58,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:58,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:58,957 INFO L87 Difference]: Start difference. First operand 479 states and 716 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:59,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:01,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:03,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:05,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:06,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:06,120 INFO L93 Difference]: Finished difference Result 977 states and 1466 transitions. [2022-04-05 09:59:06,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:06,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 09:59:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:06,126 INFO L225 Difference]: With dead ends: 977 [2022-04-05 09:59:06,126 INFO L226 Difference]: Without dead ends: 524 [2022-04-05 09:59:06,147 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 [2022-04-05 09:59:06,148 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 80 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:06,148 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 511 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-04-05 09:59:06,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-04-05 09:59:06,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 479. [2022-04-05 09:59:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5) internal successors, (711), 474 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 715 transitions. [2022-04-05 09:59:06,157 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 715 transitions. Word has length 123 [2022-04-05 09:59:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:06,158 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 715 transitions. [2022-04-05 09:59:06,158 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:06,158 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 715 transitions. [2022-04-05 09:59:06,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 09:59:06,159 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:06,159 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] [2022-04-05 09:59:06,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 09:59:06,159 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:06,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1869899920, now seen corresponding path program 1 times [2022-04-05 09:59:06,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:06,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356637228] [2022-04-05 09:59:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:06,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:06,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:06,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356637228] [2022-04-05 09:59:06,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356637228] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:06,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:06,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:06,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280579514] [2022-04-05 09:59:06,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:06,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:06,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:06,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:06,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:06,280 INFO L87 Difference]: Start difference. First operand 479 states and 715 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) [2022-04-05 09:59:08,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:09,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:10,230 INFO L93 Difference]: Finished difference Result 973 states and 1458 transitions. [2022-04-05 09:59:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:10,231 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 [2022-04-05 09:59:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:10,232 INFO L225 Difference]: With dead ends: 973 [2022-04-05 09:59:10,232 INFO L226 Difference]: Without dead ends: 520 [2022-04-05 09:59:10,233 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 [2022-04-05 09:59:10,233 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 52 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:10,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 515 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 09:59:10,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-04-05 09:59:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 490. [2022-04-05 09:59:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5010309278350515) internal successors, (728), 485 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 732 transitions. [2022-04-05 09:59:10,242 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 732 transitions. Word has length 123 [2022-04-05 09:59:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:10,242 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 732 transitions. [2022-04-05 09:59:10,242 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) [2022-04-05 09:59:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 732 transitions. [2022-04-05 09:59:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 09:59:10,243 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:10,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:10,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 09:59:10,244 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash 486911117, now seen corresponding path program 1 times [2022-04-05 09:59:10,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:10,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091258448] [2022-04-05 09:59:10,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:10,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:10,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-05 09:59:10,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:10,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091258448] [2022-04-05 09:59:10,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091258448] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:10,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:10,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:10,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318296188] [2022-04-05 09:59:10,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:10,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:10,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:10,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:10,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:10,353 INFO L87 Difference]: Start difference. First operand 490 states and 732 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:11,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:13,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:15,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:15,628 INFO L93 Difference]: Finished difference Result 1019 states and 1528 transitions. [2022-04-05 09:59:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:15,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 09:59:15,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:15,630 INFO L225 Difference]: With dead ends: 1019 [2022-04-05 09:59:15,630 INFO L226 Difference]: Without dead ends: 555 [2022-04-05 09:59:15,630 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 [2022-04-05 09:59:15,631 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:15,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 364 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 09:59:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-04-05 09:59:15,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 490. [2022-04-05 09:59:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4845360824742269) internal successors, (720), 485 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 724 transitions. [2022-04-05 09:59:15,638 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 724 transitions. Word has length 123 [2022-04-05 09:59:15,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:15,638 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 724 transitions. [2022-04-05 09:59:15,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:15,638 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 724 transitions. [2022-04-05 09:59:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-05 09:59:15,639 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:15,639 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] [2022-04-05 09:59:15,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 09:59:15,639 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash 996942491, now seen corresponding path program 1 times [2022-04-05 09:59:15,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:15,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394617872] [2022-04-05 09:59:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:15,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:15,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:15,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394617872] [2022-04-05 09:59:15,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394617872] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:15,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:15,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:15,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297446047] [2022-04-05 09:59:15,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:15,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:15,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:15,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:15,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:15,749 INFO L87 Difference]: Start difference. First operand 490 states and 724 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) [2022-04-05 09:59:16,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:18,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:20,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:20,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:20,717 INFO L93 Difference]: Finished difference Result 1061 states and 1574 transitions. [2022-04-05 09:59:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:20,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-04-05 09:59:20,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:20,719 INFO L225 Difference]: With dead ends: 1061 [2022-04-05 09:59:20,719 INFO L226 Difference]: Without dead ends: 597 [2022-04-05 09:59:20,719 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 [2022-04-05 09:59:20,720 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 104 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:20,720 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 367 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 09:59:20,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-04-05 09:59:20,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 533. [2022-04-05 09:59:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4867424242424243) internal successors, (785), 528 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) [2022-04-05 09:59:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 789 transitions. [2022-04-05 09:59:20,728 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 789 transitions. Word has length 130 [2022-04-05 09:59:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:20,728 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 789 transitions. [2022-04-05 09:59:20,728 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) [2022-04-05 09:59:20,728 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 789 transitions. [2022-04-05 09:59:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:59:20,729 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:20,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:20,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 09:59:20,729 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:20,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1679933841, now seen corresponding path program 1 times [2022-04-05 09:59:20,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:20,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058544062] [2022-04-05 09:59:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:20,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-04-05 09:59:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:20,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058544062] [2022-04-05 09:59:20,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058544062] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:20,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:20,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:20,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948037762] [2022-04-05 09:59:20,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:20,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:20,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:20,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:20,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:20,819 INFO L87 Difference]: Start difference. First operand 533 states and 789 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:23,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:23,655 INFO L93 Difference]: Finished difference Result 1107 states and 1644 transitions. [2022-04-05 09:59:23,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:23,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 09:59:23,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:23,657 INFO L225 Difference]: With dead ends: 1107 [2022-04-05 09:59:23,657 INFO L226 Difference]: Without dead ends: 600 [2022-04-05 09:59:23,658 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 [2022-04-05 09:59:23,658 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:23,658 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-05 09:59:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-04-05 09:59:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 533. [2022-04-05 09:59:23,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 528 states have (on average 1.4696969696969697) internal successors, (776), 528 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) [2022-04-05 09:59:23,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 780 transitions. [2022-04-05 09:59:23,665 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 780 transitions. Word has length 131 [2022-04-05 09:59:23,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:23,665 INFO L478 AbstractCegarLoop]: Abstraction has 533 states and 780 transitions. [2022-04-05 09:59:23,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:23,666 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 780 transitions. [2022-04-05 09:59:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:59:23,666 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:23,667 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] [2022-04-05 09:59:23,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 09:59:23,667 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:23,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:23,667 INFO L85 PathProgramCache]: Analyzing trace with hash -307536964, now seen corresponding path program 1 times [2022-04-05 09:59:23,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:23,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058881714] [2022-04-05 09:59:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:23,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:23,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:23,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058881714] [2022-04-05 09:59:23,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058881714] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:23,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:23,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:23,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728284831] [2022-04-05 09:59:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:23,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:23,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:23,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:23,767 INFO L87 Difference]: Start difference. First operand 533 states and 780 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) [2022-04-05 09:59:25,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:27,693 INFO L93 Difference]: Finished difference Result 1064 states and 1561 transitions. [2022-04-05 09:59:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:27,694 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 [2022-04-05 09:59:27,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:27,695 INFO L225 Difference]: With dead ends: 1064 [2022-04-05 09:59:27,695 INFO L226 Difference]: Without dead ends: 557 [2022-04-05 09:59:27,696 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 [2022-04-05 09:59:27,696 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:27,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 535 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 09:59:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-04-05 09:59:27,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 536. [2022-04-05 09:59:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 531 states have (on average 1.4670433145009416) internal successors, (779), 531 states have internal predecessors, (779), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 783 transitions. [2022-04-05 09:59:27,718 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 783 transitions. Word has length 131 [2022-04-05 09:59:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:27,718 INFO L478 AbstractCegarLoop]: Abstraction has 536 states and 783 transitions. [2022-04-05 09:59:27,718 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) [2022-04-05 09:59:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 783 transitions. [2022-04-05 09:59:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:59:27,719 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:27,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:27,720 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 09:59:27,720 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:27,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash 194878290, now seen corresponding path program 1 times [2022-04-05 09:59:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:27,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784760392] [2022-04-05 09:59:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:27,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-04-05 09:59:27,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:27,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784760392] [2022-04-05 09:59:27,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784760392] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:27,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:27,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863703506] [2022-04-05 09:59:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:27,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:27,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:27,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:27,867 INFO L87 Difference]: Start difference. First operand 536 states and 783 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-04-05 09:59:30,080 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 [] [2022-04-05 09:59:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:30,365 INFO L93 Difference]: Finished difference Result 1511 states and 2226 transitions. [2022-04-05 09:59:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:30,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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 131 [2022-04-05 09:59:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:30,368 INFO L225 Difference]: With dead ends: 1511 [2022-04-05 09:59:30,369 INFO L226 Difference]: Without dead ends: 1001 [2022-04-05 09:59:30,369 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 [2022-04-05 09:59:30,370 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:30,389 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 433 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 09:59:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-04-05 09:59:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-04-05 09:59:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.464859437751004) internal successors, (1459), 996 states have internal predecessors, (1459), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1463 transitions. [2022-04-05 09:59:30,403 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1463 transitions. Word has length 131 [2022-04-05 09:59:30,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:30,404 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1463 transitions. [2022-04-05 09:59:30,404 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-04-05 09:59:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1463 transitions. [2022-04-05 09:59:30,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:59:30,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:30,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:30,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 09:59:30,406 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:30,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1014363949, now seen corresponding path program 1 times [2022-04-05 09:59:30,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:30,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894180219] [2022-04-05 09:59:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:30,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-04-05 09:59:30,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:30,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894180219] [2022-04-05 09:59:30,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894180219] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:30,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:30,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650562997] [2022-04-05 09:59:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:30,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:30,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:30,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:30,486 INFO L87 Difference]: Start difference. First operand 1001 states and 1463 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:31,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:34,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:34,530 INFO L93 Difference]: Finished difference Result 2003 states and 2933 transitions. [2022-04-05 09:59:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:34,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 09:59:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:34,533 INFO L225 Difference]: With dead ends: 2003 [2022-04-05 09:59:34,533 INFO L226 Difference]: Without dead ends: 1028 [2022-04-05 09:59:34,535 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 [2022-04-05 09:59:34,536 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:34,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 09:59:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-04-05 09:59:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2022-04-05 09:59:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1023 states have (on average 1.4604105571847508) internal successors, (1494), 1023 states have internal predecessors, (1494), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1498 transitions. [2022-04-05 09:59:34,548 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1498 transitions. Word has length 131 [2022-04-05 09:59:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:34,549 INFO L478 AbstractCegarLoop]: Abstraction has 1028 states and 1498 transitions. [2022-04-05 09:59:34,549 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1498 transitions. [2022-04-05 09:59:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:59:34,550 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:34,550 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:34,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 09:59:34,550 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:34,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash -955143212, now seen corresponding path program 1 times [2022-04-05 09:59:34,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:34,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004294] [2022-04-05 09:59:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:34,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-04-05 09:59:34,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:34,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004294] [2022-04-05 09:59:34,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004294] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:34,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:34,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882260589] [2022-04-05 09:59:34,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:34,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:34,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:34,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:34,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:34,623 INFO L87 Difference]: Start difference. First operand 1028 states and 1498 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:35,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:37,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:38,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:38,900 INFO L93 Difference]: Finished difference Result 2032 states and 2969 transitions. [2022-04-05 09:59:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:38,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have 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 [2022-04-05 09:59:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:38,911 INFO L225 Difference]: With dead ends: 2032 [2022-04-05 09:59:38,911 INFO L226 Difference]: Without dead ends: 1030 [2022-04-05 09:59:38,912 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 [2022-04-05 09:59:38,913 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:38,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 09:59:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-04-05 09:59:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-04-05 09:59:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1025 states have (on average 1.4595121951219512) internal successors, (1496), 1025 states have internal predecessors, (1496), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1500 transitions. [2022-04-05 09:59:38,943 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1500 transitions. Word has length 131 [2022-04-05 09:59:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:38,943 INFO L478 AbstractCegarLoop]: Abstraction has 1030 states and 1500 transitions. [2022-04-05 09:59:38,943 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1500 transitions. [2022-04-05 09:59:38,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 09:59:38,944 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:38,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:38,945 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 09:59:38,945 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -763774951, now seen corresponding path program 1 times [2022-04-05 09:59:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:38,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692762912] [2022-04-05 09:59:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:39,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 09:59:39,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:39,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692762912] [2022-04-05 09:59:39,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692762912] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:39,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:39,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:39,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259401779] [2022-04-05 09:59:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:39,046 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:39,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:39,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:39,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:39,047 INFO L87 Difference]: Start difference. First operand 1030 states and 1500 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:40,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:42,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:43,233 INFO L93 Difference]: Finished difference Result 2542 states and 3721 transitions. [2022-04-05 09:59:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:43,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 09:59:43,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:43,238 INFO L225 Difference]: With dead ends: 2542 [2022-04-05 09:59:43,238 INFO L226 Difference]: Without dead ends: 1540 [2022-04-05 09:59:43,239 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 [2022-04-05 09:59:43,240 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:43,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-04-05 09:59:43,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2022-04-05 09:59:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1538. [2022-04-05 09:59:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1533 states have (on average 1.4651011089367254) internal successors, (2246), 1533 states have internal predecessors, (2246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:43,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2250 transitions. [2022-04-05 09:59:43,265 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2250 transitions. Word has length 133 [2022-04-05 09:59:43,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:43,265 INFO L478 AbstractCegarLoop]: Abstraction has 1538 states and 2250 transitions. [2022-04-05 09:59:43,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:43,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2250 transitions. [2022-04-05 09:59:43,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-05 09:59:43,267 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:43,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:43,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 09:59:43,267 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:43,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-04-05 09:59:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:43,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506011893] [2022-04-05 09:59:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:43,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 09:59:43,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:43,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506011893] [2022-04-05 09:59:43,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506011893] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:43,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:43,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:43,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081415248] [2022-04-05 09:59:43,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:43,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:43,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:43,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:43,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:43,414 INFO L87 Difference]: Start difference. First operand 1538 states and 2250 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:44,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:46,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:47,267 INFO L93 Difference]: Finished difference Result 2050 states and 3004 transitions. [2022-04-05 09:59:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:47,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-04-05 09:59:47,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:47,271 INFO L225 Difference]: With dead ends: 2050 [2022-04-05 09:59:47,271 INFO L226 Difference]: Without dead ends: 2048 [2022-04-05 09:59:47,272 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 [2022-04-05 09:59:47,272 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:47,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 09:59:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-04-05 09:59:47,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2046. [2022-04-05 09:59:47,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 2041 states have (on average 1.4683978441940226) internal successors, (2997), 2041 states have internal predecessors, (2997), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:47,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3001 transitions. [2022-04-05 09:59:47,296 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3001 transitions. Word has length 134 [2022-04-05 09:59:47,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:47,296 INFO L478 AbstractCegarLoop]: Abstraction has 2046 states and 3001 transitions. [2022-04-05 09:59:47,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3001 transitions. [2022-04-05 09:59:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 09:59:47,298 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:47,298 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, 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] [2022-04-05 09:59:47,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 09:59:47,298 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1380102266, now seen corresponding path program 1 times [2022-04-05 09:59:47,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:47,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361956220] [2022-04-05 09:59:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:47,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:47,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:59:47,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:47,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361956220] [2022-04-05 09:59:47,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361956220] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:47,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:47,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:59:47,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087208179] [2022-04-05 09:59:47,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:47,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:47,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:47,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:47,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:59:47,377 INFO L87 Difference]: Start difference. First operand 2046 states and 3001 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 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) [2022-04-05 09:59:50,053 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 [] [2022-04-05 09:59:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:50,528 INFO L93 Difference]: Finished difference Result 4574 states and 6721 transitions. [2022-04-05 09:59:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 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 147 [2022-04-05 09:59:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:50,534 INFO L225 Difference]: With dead ends: 4574 [2022-04-05 09:59:50,534 INFO L226 Difference]: Without dead ends: 2556 [2022-04-05 09:59:50,536 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 [2022-04-05 09:59:50,536 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:50,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-04-05 09:59:50,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-04-05 09:59:50,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2554. [2022-04-05 09:59:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.4617497057669675) internal successors, (3726), 2549 states have internal predecessors, (3726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3730 transitions. [2022-04-05 09:59:50,568 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3730 transitions. Word has length 147 [2022-04-05 09:59:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:50,568 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3730 transitions. [2022-04-05 09:59:50,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 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) [2022-04-05 09:59:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3730 transitions. [2022-04-05 09:59:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-05 09:59:50,571 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:50,571 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] [2022-04-05 09:59:50,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 09:59:50,571 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash 809864280, now seen corresponding path program 1 times [2022-04-05 09:59:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:50,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029094664] [2022-04-05 09:59:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:50,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:50,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:59:50,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:50,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029094664] [2022-04-05 09:59:50,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029094664] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:50,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:50,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:50,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765075453] [2022-04-05 09:59:50,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:50,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:50,664 INFO L87 Difference]: Start difference. First operand 2554 states and 3730 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) [2022-04-05 09:59:51,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:53,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:54,805 INFO L93 Difference]: Finished difference Result 5404 states and 7866 transitions. [2022-04-05 09:59:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:54,805 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 [2022-04-05 09:59:54,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:54,811 INFO L225 Difference]: With dead ends: 5404 [2022-04-05 09:59:54,812 INFO L226 Difference]: Without dead ends: 2878 [2022-04-05 09:59:54,814 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 [2022-04-05 09:59:54,814 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:54,815 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 378 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-05 09:59:54,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-04-05 09:59:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2554. [2022-04-05 09:59:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.456257355825814) internal successors, (3712), 2549 states have internal predecessors, (3712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3716 transitions. [2022-04-05 09:59:54,909 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3716 transitions. Word has length 164 [2022-04-05 09:59:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:54,909 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3716 transitions. [2022-04-05 09:59:54,909 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) [2022-04-05 09:59:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3716 transitions. [2022-04-05 09:59:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-05 09:59:54,912 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:54,912 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] [2022-04-05 09:59:54,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 09:59:54,912 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash 243838419, now seen corresponding path program 1 times [2022-04-05 09:59:54,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:54,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319976464] [2022-04-05 09:59:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:55,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-04-05 09:59:55,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:55,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319976464] [2022-04-05 09:59:55,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319976464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:55,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:55,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 09:59:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664611713] [2022-04-05 09:59:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:55,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 09:59:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:55,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 09:59:55,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:59:55,214 INFO L87 Difference]: Start difference. First operand 2554 states and 3716 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:56,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:57,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:02,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:02,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:02,507 INFO L93 Difference]: Finished difference Result 5101 states and 7424 transitions. [2022-04-05 10:00:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 10:00:02,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-04-05 10:00:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:02,521 INFO L225 Difference]: With dead ends: 5101 [2022-04-05 10:00:02,521 INFO L226 Difference]: Without dead ends: 2554 [2022-04-05 10:00:02,525 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 10:00:02,525 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:02,525 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 841 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-04-05 10:00:02,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-04-05 10:00:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 2554. [2022-04-05 10:00:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 2549 states have (on average 1.4558650451157316) internal successors, (3711), 2549 states have internal predecessors, (3711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 3715 transitions. [2022-04-05 10:00:02,572 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 3715 transitions. Word has length 171 [2022-04-05 10:00:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:02,573 INFO L478 AbstractCegarLoop]: Abstraction has 2554 states and 3715 transitions. [2022-04-05 10:00:02,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 3715 transitions. [2022-04-05 10:00:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-05 10:00:02,575 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:02,576 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] [2022-04-05 10:00:02,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 10:00:02,576 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash -717786796, now seen corresponding path program 1 times [2022-04-05 10:00:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:02,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114634072] [2022-04-05 10:00:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:02,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:03,350 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 174 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:00:03,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:03,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114634072] [2022-04-05 10:00:03,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114634072] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:00:03,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350306168] [2022-04-05 10:00:03,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:03,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:00:03,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:00:03,352 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) [2022-04-05 10:00:03,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 10:00:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:04,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 260 conjunts are in the unsatisfiable core [2022-04-05 10:00:04,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:00:04,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75001 treesize of output 67144 [2022-04-05 10:00:04,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:04,755 INFO L356 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2022-04-05 10:00:04,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2741 treesize of output 1016