/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.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:56:58,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:56:58,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:56:58,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:56:58,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:56:58,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:56:58,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:56:58,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:56:58,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:56:58,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:56:58,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:56:58,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:56:58,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:56:58,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:56:58,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:56:58,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:56:58,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:56:58,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:56:58,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:56:58,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:56:58,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:56:58,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:56:58,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:56:58,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:56:58,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-24 00:56:58,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-24 00:56:58,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-24 00:56:58,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-24 00:56:58,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-24 00:56:58,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-02-24 00:56:58,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:56:58,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:56:58,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:56:58,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:56:58,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:56:58,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:56:58,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:56:58,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:56:58,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:56:58,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:56:58,254 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:56:58,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:56:58,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:56:58,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:56:58,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:56:58,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:56:58,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:56:58,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:56:58,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:56:58,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:56:58,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:56:58,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:56:58,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:56:58,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:56:58,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:56:58,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:56:58,260 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:56:58,260 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:56:58,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:56:58,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:56:58,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:56:58,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:56:58,466 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:56:58,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-02-24 00:56:58,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c21bc47/8a8d6ec6b63342c9bca82a5930b36052/FLAGb63004689 [2022-02-24 00:56:58,953 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:56:58,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-02-24 00:56:58,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c21bc47/8a8d6ec6b63342c9bca82a5930b36052/FLAGb63004689 [2022-02-24 00:56:58,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c21bc47/8a8d6ec6b63342c9bca82a5930b36052 [2022-02-24 00:56:58,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:56:58,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:56:58,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:56:58,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:56:58,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:56:58,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:56:58" (1/1) ... [2022-02-24 00:56:58,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce1920b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:58, skipping insertion in model container [2022-02-24 00:56:58,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:56:58" (1/1) ... [2022-02-24 00:56:58,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:56:59,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:56:59,429 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.15.i.cil-2.c[75833,75846] [2022-02-24 00:56:59,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:56:59,446 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:56:59,540 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.15.i.cil-2.c[75833,75846] [2022-02-24 00:56:59,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:56:59,556 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:56:59,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59 WrapperNode [2022-02-24 00:56:59,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:56:59,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:56:59,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:56:59,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:56:59,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:56:59,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:56:59,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:56:59,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:56:59,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (1/1) ... [2022-02-24 00:56:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:56:59,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:56:59,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-24 00:56:59,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-24 00:56:59,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:56:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:56:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:56:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:56:59,756 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:56:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:56:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:56:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:56:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:56:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:56:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:56:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:56:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:56:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:56:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:56:59,911 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:56:59,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:57:00,857 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:57:01,328 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:57:01,328 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:57:01,340 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:57:01,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:57:01,351 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:57:01,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:57:01 BoogieIcfgContainer [2022-02-24 00:57:01,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:57:01,354 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:57:01,354 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:57:01,355 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:57:01,358 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:57:01" (1/1) ... [2022-02-24 00:57:01,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:57:01 BasicIcfg [2022-02-24 00:57:01,418 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:57:01,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:57:01,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:57:01,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:57:01,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:56:58" (1/4) ... [2022-02-24 00:57:01,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1042afe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:57:01, skipping insertion in model container [2022-02-24 00:57:01,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:56:59" (2/4) ... [2022-02-24 00:57:01,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1042afe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:57:01, skipping insertion in model container [2022-02-24 00:57:01,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:57:01" (3/4) ... [2022-02-24 00:57:01,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1042afe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:57:01, skipping insertion in model container [2022-02-24 00:57:01,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:57:01" (4/4) ... [2022-02-24 00:57:01,426 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.cqvasr [2022-02-24 00:57:01,432 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:57:01,432 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:57:01,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:57:01,488 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:57:01,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:57:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 00:57:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-24 00:57:01,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:01,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:01,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:01,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash -6184136, now seen corresponding path program 1 times [2022-02-24 00:57:01,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:01,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127033063] [2022-02-24 00:57:01,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:01,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:02,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:02,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:02,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127033063] [2022-02-24 00:57:02,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127033063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:02,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:02,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:02,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618262343] [2022-02-24 00:57:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:02,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:02,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:02,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:02,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:02,143 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:03,343 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 [] [2022-02-24 00:57:05,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:07,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:08,760 INFO L93 Difference]: Finished difference Result 440 states and 746 transitions. [2022-02-24 00:57:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:08,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-02-24 00:57:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:08,772 INFO L225 Difference]: With dead ends: 440 [2022-02-24 00:57:08,772 INFO L226 Difference]: Without dead ends: 267 [2022-02-24 00:57:08,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:08,784 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 158 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:08,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 487 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 00:57:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-02-24 00:57:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 186. [2022-02-24 00:57:08,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.6132596685082874) internal successors, (292), 181 states have internal predecessors, (292), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 296 transitions. [2022-02-24 00:57:08,832 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 296 transitions. Word has length 51 [2022-02-24 00:57:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:08,833 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 296 transitions. [2022-02-24 00:57:08,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 296 transitions. [2022-02-24 00:57:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-24 00:57:08,835 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:08,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:08,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:57:08,835 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:08,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1976632800, now seen corresponding path program 1 times [2022-02-24 00:57:08,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:08,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239082953] [2022-02-24 00:57:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:08,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:09,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:09,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:09,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239082953] [2022-02-24 00:57:09,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239082953] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:09,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:09,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:09,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811190087] [2022-02-24 00:57:09,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:09,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:09,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:09,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:09,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:09,037 INFO L87 Difference]: Start difference. First operand 186 states and 296 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:11,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:13,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:15,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:15,849 INFO L93 Difference]: Finished difference Result 385 states and 614 transitions. [2022-02-24 00:57:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:15,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-02-24 00:57:15,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:15,852 INFO L225 Difference]: With dead ends: 385 [2022-02-24 00:57:15,852 INFO L226 Difference]: Without dead ends: 214 [2022-02-24 00:57:15,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:15,854 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 22 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:15,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 505 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:57:15,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-24 00:57:15,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 197. [2022-02-24 00:57:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.6197916666666667) internal successors, (311), 192 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 315 transitions. [2022-02-24 00:57:15,868 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 315 transitions. Word has length 52 [2022-02-24 00:57:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:15,869 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 315 transitions. [2022-02-24 00:57:15,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 315 transitions. [2022-02-24 00:57:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:57:15,871 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:15,871 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:15,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:57:15,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:15,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1845941417, now seen corresponding path program 1 times [2022-02-24 00:57:15,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:15,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525220420] [2022-02-24 00:57:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:15,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:16,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:16,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:16,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525220420] [2022-02-24 00:57:16,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525220420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:16,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:16,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:16,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309942908] [2022-02-24 00:57:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:16,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:16,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:16,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:16,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:16,064 INFO L87 Difference]: Start difference. First operand 197 states and 315 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:18,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:20,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:22,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:23,120 INFO L93 Difference]: Finished difference Result 385 states and 613 transitions. [2022-02-24 00:57:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:23,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-24 00:57:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:23,122 INFO L225 Difference]: With dead ends: 385 [2022-02-24 00:57:23,122 INFO L226 Difference]: Without dead ends: 214 [2022-02-24 00:57:23,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:23,124 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 24 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:23,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 507 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-02-24 00:57:23,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-24 00:57:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 197. [2022-02-24 00:57:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.6145833333333333) internal successors, (310), 192 states have internal predecessors, (310), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 314 transitions. [2022-02-24 00:57:23,136 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 314 transitions. Word has length 65 [2022-02-24 00:57:23,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:23,136 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 314 transitions. [2022-02-24 00:57:23,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 314 transitions. [2022-02-24 00:57:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:57:23,139 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:23,139 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:23,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:57:23,139 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash 247845242, now seen corresponding path program 1 times [2022-02-24 00:57:23,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:23,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486091010] [2022-02-24 00:57:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:23,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:23,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:23,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486091010] [2022-02-24 00:57:23,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486091010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:23,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:23,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:23,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342749532] [2022-02-24 00:57:23,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:23,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:23,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:23,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:23,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:23,276 INFO L87 Difference]: Start difference. First operand 197 states and 314 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:24,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:26,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:28,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:30,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:31,035 INFO L93 Difference]: Finished difference Result 487 states and 778 transitions. [2022-02-24 00:57:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:31,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 00:57:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:31,037 INFO L225 Difference]: With dead ends: 487 [2022-02-24 00:57:31,037 INFO L226 Difference]: Without dead ends: 316 [2022-02-24 00:57:31,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:31,041 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 154 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:31,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 370 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 481 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 00:57:31,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-02-24 00:57:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 208. [2022-02-24 00:57:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5960591133004927) internal successors, (324), 203 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 328 transitions. [2022-02-24 00:57:31,057 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 328 transitions. Word has length 66 [2022-02-24 00:57:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:31,057 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 328 transitions. [2022-02-24 00:57:31,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:31,058 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 328 transitions. [2022-02-24 00:57:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:57:31,068 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:31,069 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:31,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:57:31,069 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:31,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:31,070 INFO L85 PathProgramCache]: Analyzing trace with hash -454246, now seen corresponding path program 1 times [2022-02-24 00:57:31,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:31,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070008721] [2022-02-24 00:57:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:31,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:31,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:31,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070008721] [2022-02-24 00:57:31,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070008721] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:31,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:31,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:31,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117426515] [2022-02-24 00:57:31,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:31,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:31,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:31,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:31,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:31,236 INFO L87 Difference]: Start difference. First operand 208 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:34,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:34,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:34,770 INFO L93 Difference]: Finished difference Result 406 states and 640 transitions. [2022-02-24 00:57:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:34,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 00:57:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:34,772 INFO L225 Difference]: With dead ends: 406 [2022-02-24 00:57:34,772 INFO L226 Difference]: Without dead ends: 224 [2022-02-24 00:57:34,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:34,773 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:34,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-02-24 00:57:34,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-02-24 00:57:34,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 208. [2022-02-24 00:57:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-02-24 00:57:34,782 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 66 [2022-02-24 00:57:34,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:34,782 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-02-24 00:57:34,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:34,783 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-02-24 00:57:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:57:34,784 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:34,784 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:34,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:57:34,784 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:34,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:34,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1973943770, now seen corresponding path program 1 times [2022-02-24 00:57:34,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:34,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427337020] [2022-02-24 00:57:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:34,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:34,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:34,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427337020] [2022-02-24 00:57:34,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427337020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:34,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:34,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:34,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075809279] [2022-02-24 00:57:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:34,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:34,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:34,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:34,894 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:37,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:39,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:41,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:41,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:41,850 INFO L93 Difference]: Finished difference Result 498 states and 789 transitions. [2022-02-24 00:57:41,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:41,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 00:57:41,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:41,852 INFO L225 Difference]: With dead ends: 498 [2022-02-24 00:57:41,853 INFO L226 Difference]: Without dead ends: 316 [2022-02-24 00:57:41,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:41,854 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 147 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:41,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 370 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:57:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-02-24 00:57:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 214. [2022-02-24 00:57:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5885167464114833) internal successors, (332), 209 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 336 transitions. [2022-02-24 00:57:41,862 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 336 transitions. Word has length 66 [2022-02-24 00:57:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:41,863 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 336 transitions. [2022-02-24 00:57:41,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 336 transitions. [2022-02-24 00:57:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:57:41,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:41,864 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:41,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:57:41,864 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:41,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2096433926, now seen corresponding path program 1 times [2022-02-24 00:57:41,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:41,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941059595] [2022-02-24 00:57:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:41,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:41,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:41,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:41,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941059595] [2022-02-24 00:57:41,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941059595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:41,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:41,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:41,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188623413] [2022-02-24 00:57:41,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:41,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:41,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:41,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:41,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:41,983 INFO L87 Difference]: Start difference. First operand 214 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:44,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:46,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:48,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:49,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:49,480 INFO L93 Difference]: Finished difference Result 503 states and 795 transitions. [2022-02-24 00:57:49,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:49,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-24 00:57:49,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:49,482 INFO L225 Difference]: With dead ends: 503 [2022-02-24 00:57:49,482 INFO L226 Difference]: Without dead ends: 315 [2022-02-24 00:57:49,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:49,483 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 145 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:49,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:57:49,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-02-24 00:57:49,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 215. [2022-02-24 00:57:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5761904761904761) internal successors, (331), 210 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 335 transitions. [2022-02-24 00:57:49,491 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 335 transitions. Word has length 66 [2022-02-24 00:57:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:49,491 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 335 transitions. [2022-02-24 00:57:49,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 335 transitions. [2022-02-24 00:57:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:57:49,492 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:49,492 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:49,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:57:49,492 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1602851383, now seen corresponding path program 1 times [2022-02-24 00:57:49,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:49,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940347931] [2022-02-24 00:57:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:49,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:49,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:49,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940347931] [2022-02-24 00:57:49,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940347931] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:49,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:49,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:49,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240029327] [2022-02-24 00:57:49,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:49,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:49,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:49,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:49,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:49,612 INFO L87 Difference]: Start difference. First operand 215 states and 335 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:52,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:54,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:57:55,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:57:55,381 INFO L93 Difference]: Finished difference Result 504 states and 792 transitions. [2022-02-24 00:57:55,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:57:55,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-24 00:57:55,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:57:55,383 INFO L225 Difference]: With dead ends: 504 [2022-02-24 00:57:55,383 INFO L226 Difference]: Without dead ends: 315 [2022-02-24 00:57:55,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:57:55,384 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 149 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:57:55,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:57:55,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-02-24 00:57:55,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 215. [2022-02-24 00:57:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.561904761904762) internal successors, (328), 210 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 332 transitions. [2022-02-24 00:57:55,399 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 332 transitions. Word has length 67 [2022-02-24 00:57:55,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:57:55,399 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 332 transitions. [2022-02-24 00:57:55,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 332 transitions. [2022-02-24 00:57:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:57:55,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:57:55,400 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:57:55,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:57:55,401 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:57:55,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:57:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash -265319106, now seen corresponding path program 1 times [2022-02-24 00:57:55,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:57:55,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176308733] [2022-02-24 00:57:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:57:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:57:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:57:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:57:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:57:55,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:57:55,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176308733] [2022-02-24 00:57:55,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176308733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:57:55,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:57:55,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:57:55,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51800602] [2022-02-24 00:57:55,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:57:55,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:57:55,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:57:55,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:57:55,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:57:55,536 INFO L87 Difference]: Start difference. First operand 215 states and 332 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:57:58,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:00,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:00,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:00,830 INFO L93 Difference]: Finished difference Result 417 states and 649 transitions. [2022-02-24 00:58:00,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:00,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-24 00:58:00,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:00,832 INFO L225 Difference]: With dead ends: 417 [2022-02-24 00:58:00,832 INFO L226 Difference]: Without dead ends: 228 [2022-02-24 00:58:00,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:00,833 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 20 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:00,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 515 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:58:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-02-24 00:58:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 215. [2022-02-24 00:58:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5571428571428572) internal successors, (327), 210 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 331 transitions. [2022-02-24 00:58:00,842 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 331 transitions. Word has length 68 [2022-02-24 00:58:00,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:00,843 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 331 transitions. [2022-02-24 00:58:00,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:00,843 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 331 transitions. [2022-02-24 00:58:00,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:58:00,844 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:00,844 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:00,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:58:00,844 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:00,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:00,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1927659802, now seen corresponding path program 1 times [2022-02-24 00:58:00,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:00,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630349355] [2022-02-24 00:58:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:00,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:58:00,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:00,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630349355] [2022-02-24 00:58:00,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630349355] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:00,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:00,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:00,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382882016] [2022-02-24 00:58:00,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:00,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:00,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:00,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:00,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:00,976 INFO L87 Difference]: Start difference. First operand 215 states and 331 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:02,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:04,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:06,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:06,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:06,582 INFO L93 Difference]: Finished difference Result 504 states and 786 transitions. [2022-02-24 00:58:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:06,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-24 00:58:06,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:06,584 INFO L225 Difference]: With dead ends: 504 [2022-02-24 00:58:06,584 INFO L226 Difference]: Without dead ends: 315 [2022-02-24 00:58:06,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:06,585 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 146 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:06,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:58:06,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-02-24 00:58:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 215. [2022-02-24 00:58:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.542857142857143) internal successors, (324), 210 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 328 transitions. [2022-02-24 00:58:06,592 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 328 transitions. Word has length 69 [2022-02-24 00:58:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:06,592 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 328 transitions. [2022-02-24 00:58:06,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 328 transitions. [2022-02-24 00:58:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:58:06,593 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:06,594 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:06,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:58:06,594 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:06,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:06,594 INFO L85 PathProgramCache]: Analyzing trace with hash -749768695, now seen corresponding path program 1 times [2022-02-24 00:58:06,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:06,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547760058] [2022-02-24 00:58:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:06,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:58:06,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:06,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547760058] [2022-02-24 00:58:06,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547760058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:06,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:06,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:06,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089129514] [2022-02-24 00:58:06,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:06,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:06,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:06,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:06,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:06,704 INFO L87 Difference]: Start difference. First operand 215 states and 328 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:08,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:10,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:12,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:14,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:14,654 INFO L93 Difference]: Finished difference Result 445 states and 685 transitions. [2022-02-24 00:58:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:14,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-02-24 00:58:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:14,656 INFO L225 Difference]: With dead ends: 445 [2022-02-24 00:58:14,656 INFO L226 Difference]: Without dead ends: 256 [2022-02-24 00:58:14,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:14,657 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 29 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:14,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 531 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-24 00:58:14,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-02-24 00:58:14,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 237. [2022-02-24 00:58:14,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-02-24 00:58:14,663 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 69 [2022-02-24 00:58:14,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:14,664 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-02-24 00:58:14,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-02-24 00:58:14,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-24 00:58:14,665 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:14,665 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:14,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:58:14,665 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:14,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:14,665 INFO L85 PathProgramCache]: Analyzing trace with hash 215701518, now seen corresponding path program 1 times [2022-02-24 00:58:14,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:14,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306646930] [2022-02-24 00:58:14,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:14,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:58:14,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:14,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306646930] [2022-02-24 00:58:14,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306646930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:14,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:14,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:14,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173698164] [2022-02-24 00:58:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:14,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:14,773 INFO L87 Difference]: Start difference. First operand 237 states and 361 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) [2022-02-24 00:58:16,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:18,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:20,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:21,236 INFO L93 Difference]: Finished difference Result 465 states and 715 transitions. [2022-02-24 00:58:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:21,237 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 82 [2022-02-24 00:58:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:21,238 INFO L225 Difference]: With dead ends: 465 [2022-02-24 00:58:21,238 INFO L226 Difference]: Without dead ends: 254 [2022-02-24 00:58:21,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:21,239 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 34 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:21,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 535 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:58:21,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-02-24 00:58:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 237. [2022-02-24 00:58:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-02-24 00:58:21,246 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 82 [2022-02-24 00:58:21,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:21,246 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-02-24 00:58:21,246 INFO L471 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) [2022-02-24 00:58:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-02-24 00:58:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:58:21,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:21,247 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:21,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:58:21,248 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:21,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash -514032701, now seen corresponding path program 1 times [2022-02-24 00:58:21,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:21,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782545744] [2022-02-24 00:58:21,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:21,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:21,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-24 00:58:21,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:21,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782545744] [2022-02-24 00:58:21,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782545744] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:21,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:21,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:21,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147711154] [2022-02-24 00:58:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:21,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:21,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:21,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:21,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:21,364 INFO L87 Difference]: Start difference. First operand 237 states and 360 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) [2022-02-24 00:58:22,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:23,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:25,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:26,180 INFO L93 Difference]: Finished difference Result 476 states and 729 transitions. [2022-02-24 00:58:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:26,180 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 83 [2022-02-24 00:58:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:26,181 INFO L225 Difference]: With dead ends: 476 [2022-02-24 00:58:26,181 INFO L226 Difference]: Without dead ends: 265 [2022-02-24 00:58:26,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:26,182 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:26,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 592 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-24 00:58:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-24 00:58:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 253. [2022-02-24 00:58:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.528225806451613) internal successors, (379), 248 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:26,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 383 transitions. [2022-02-24 00:58:26,189 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 383 transitions. Word has length 83 [2022-02-24 00:58:26,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:26,190 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 383 transitions. [2022-02-24 00:58:26,190 INFO L471 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) [2022-02-24 00:58:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 383 transitions. [2022-02-24 00:58:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:58:26,191 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:26,191 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:26,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:58:26,191 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:26,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:26,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1386877897, now seen corresponding path program 1 times [2022-02-24 00:58:26,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:26,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721968737] [2022-02-24 00:58:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:26,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:58:26,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:26,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721968737] [2022-02-24 00:58:26,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721968737] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:26,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:26,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:26,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115308549] [2022-02-24 00:58:26,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:26,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:26,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:26,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:26,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:26,303 INFO L87 Difference]: Start difference. First operand 253 states and 383 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:29,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:31,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:33,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:33,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:33,469 INFO L93 Difference]: Finished difference Result 497 states and 759 transitions. [2022-02-24 00:58:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:33,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:58:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:33,471 INFO L225 Difference]: With dead ends: 497 [2022-02-24 00:58:33,471 INFO L226 Difference]: Without dead ends: 270 [2022-02-24 00:58:33,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:33,472 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 37 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:33,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 535 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 394 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 00:58:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-24 00:58:33,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-02-24 00:58:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5241935483870968) internal successors, (378), 248 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:33,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 382 transitions. [2022-02-24 00:58:33,478 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 382 transitions. Word has length 84 [2022-02-24 00:58:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:33,478 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 382 transitions. [2022-02-24 00:58:33,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 382 transitions. [2022-02-24 00:58:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-24 00:58:33,479 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:33,479 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:33,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:58:33,480 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash -835179803, now seen corresponding path program 1 times [2022-02-24 00:58:33,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:33,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179849960] [2022-02-24 00:58:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:33,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:33,586 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:58:33,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:33,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179849960] [2022-02-24 00:58:33,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179849960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:33,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:33,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:33,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106976485] [2022-02-24 00:58:33,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:33,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:33,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:33,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:33,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:33,587 INFO L87 Difference]: Start difference. First operand 253 states and 382 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:35,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:37,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:39,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:41,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:41,637 INFO L93 Difference]: Finished difference Result 580 states and 889 transitions. [2022-02-24 00:58:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:41,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-02-24 00:58:41,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:41,639 INFO L225 Difference]: With dead ends: 580 [2022-02-24 00:58:41,639 INFO L226 Difference]: Without dead ends: 353 [2022-02-24 00:58:41,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:41,640 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 147 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:41,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-02-24 00:58:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-24 00:58:41,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 253. [2022-02-24 00:58:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5080645161290323) internal successors, (374), 248 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 378 transitions. [2022-02-24 00:58:41,647 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 378 transitions. Word has length 86 [2022-02-24 00:58:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:41,648 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 378 transitions. [2022-02-24 00:58:41,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:41,648 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 378 transitions. [2022-02-24 00:58:41,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-24 00:58:41,648 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:41,649 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:41,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:58:41,649 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:41,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1120132566, now seen corresponding path program 1 times [2022-02-24 00:58:41,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:41,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826902587] [2022-02-24 00:58:41,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:41,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:58:41,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:41,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826902587] [2022-02-24 00:58:41,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826902587] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:41,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:41,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:41,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626377988] [2022-02-24 00:58:41,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:41,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:41,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:41,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:41,764 INFO L87 Difference]: Start difference. First operand 253 states and 378 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:42,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:44,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:46,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:48,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:49,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:49,416 INFO L93 Difference]: Finished difference Result 579 states and 875 transitions. [2022-02-24 00:58:49,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:49,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-02-24 00:58:49,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:49,418 INFO L225 Difference]: With dead ends: 579 [2022-02-24 00:58:49,418 INFO L226 Difference]: Without dead ends: 352 [2022-02-24 00:58:49,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:49,419 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 82 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 14 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:49,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 489 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 520 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 00:58:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-02-24 00:58:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 295. [2022-02-24 00:58:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.5275862068965518) internal successors, (443), 290 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 447 transitions. [2022-02-24 00:58:49,427 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 447 transitions. Word has length 91 [2022-02-24 00:58:49,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:49,427 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 447 transitions. [2022-02-24 00:58:49,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:49,427 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 447 transitions. [2022-02-24 00:58:49,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-24 00:58:49,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:49,428 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:49,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:58:49,428 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:49,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1568829205, now seen corresponding path program 1 times [2022-02-24 00:58:49,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:49,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808179887] [2022-02-24 00:58:49,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:49,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:58:49,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:49,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808179887] [2022-02-24 00:58:49,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808179887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:49,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:49,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:49,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390912795] [2022-02-24 00:58:49,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:49,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:49,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:49,565 INFO L87 Difference]: Start difference. First operand 295 states and 447 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:51,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:52,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:54,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:55,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:58:55,183 INFO L93 Difference]: Finished difference Result 664 states and 1019 transitions. [2022-02-24 00:58:55,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:58:55,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-02-24 00:58:55,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:58:55,185 INFO L225 Difference]: With dead ends: 664 [2022-02-24 00:58:55,185 INFO L226 Difference]: Without dead ends: 395 [2022-02-24 00:58:55,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:58:55,186 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 120 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:58:55,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:58:55,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-02-24 00:58:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 275. [2022-02-24 00:58:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 270 states have (on average 1.5444444444444445) internal successors, (417), 270 states have internal predecessors, (417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 421 transitions. [2022-02-24 00:58:55,194 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 421 transitions. Word has length 91 [2022-02-24 00:58:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:58:55,195 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 421 transitions. [2022-02-24 00:58:55,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:55,195 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 421 transitions. [2022-02-24 00:58:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-24 00:58:55,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:58:55,196 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:58:55,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:58:55,196 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:58:55,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:58:55,197 INFO L85 PathProgramCache]: Analyzing trace with hash -537617853, now seen corresponding path program 1 times [2022-02-24 00:58:55,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:58:55,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965141] [2022-02-24 00:58:55,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:58:55,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:58:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:55,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:58:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:58:55,321 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:58:55,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:58:55,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965141] [2022-02-24 00:58:55,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:58:55,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:58:55,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:58:55,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449908176] [2022-02-24 00:58:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:58:55,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:58:55,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:58:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:58:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:58:55,322 INFO L87 Difference]: Start difference. First operand 275 states and 421 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:58:57,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:58:59,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:01,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:01,906 INFO L93 Difference]: Finished difference Result 620 states and 956 transitions. [2022-02-24 00:59:01,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:01,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-02-24 00:59:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:01,908 INFO L225 Difference]: With dead ends: 620 [2022-02-24 00:59:01,908 INFO L226 Difference]: Without dead ends: 371 [2022-02-24 00:59:01,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:01,909 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 88 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:01,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 495 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:59:01,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-02-24 00:59:01,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 309. [2022-02-24 00:59:01,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 304 states have (on average 1.549342105263158) internal successors, (471), 304 states have internal predecessors, (471), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 475 transitions. [2022-02-24 00:59:01,917 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 475 transitions. Word has length 119 [2022-02-24 00:59:01,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:01,917 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 475 transitions. [2022-02-24 00:59:01,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:01,917 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 475 transitions. [2022-02-24 00:59:01,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-02-24 00:59:01,918 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:01,918 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:01,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:59:01,919 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:01,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1021293180, now seen corresponding path program 1 times [2022-02-24 00:59:01,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:01,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788138595] [2022-02-24 00:59:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:02,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:02,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788138595] [2022-02-24 00:59:02,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788138595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:02,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:02,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:02,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236220405] [2022-02-24 00:59:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:02,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:02,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:02,043 INFO L87 Difference]: Start difference. First operand 309 states and 475 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:03,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:05,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:07,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:09,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:09,799 INFO L93 Difference]: Finished difference Result 746 states and 1161 transitions. [2022-02-24 00:59:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-02-24 00:59:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:09,801 INFO L225 Difference]: With dead ends: 746 [2022-02-24 00:59:09,801 INFO L226 Difference]: Without dead ends: 463 [2022-02-24 00:59:09,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:09,802 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 126 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 48 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:09,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 00:59:09,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-02-24 00:59:09,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 339. [2022-02-24 00:59:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 334 states have (on average 1.5598802395209581) internal successors, (521), 334 states have internal predecessors, (521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 525 transitions. [2022-02-24 00:59:09,810 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 525 transitions. Word has length 119 [2022-02-24 00:59:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:09,811 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 525 transitions. [2022-02-24 00:59:09,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 525 transitions. [2022-02-24 00:59:09,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 00:59:09,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:09,812 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:09,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:59:09,812 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:09,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash 772961685, now seen corresponding path program 1 times [2022-02-24 00:59:09,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:09,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159715695] [2022-02-24 00:59:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:09,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:09,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:09,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159715695] [2022-02-24 00:59:09,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159715695] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:09,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:09,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:09,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141193702] [2022-02-24 00:59:09,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:09,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:09,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:09,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:09,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:09,970 INFO L87 Difference]: Start difference. First operand 339 states and 525 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:12,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:15,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:15,488 INFO L93 Difference]: Finished difference Result 748 states and 1163 transitions. [2022-02-24 00:59:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:15,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-24 00:59:15,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:15,490 INFO L225 Difference]: With dead ends: 748 [2022-02-24 00:59:15,490 INFO L226 Difference]: Without dead ends: 435 [2022-02-24 00:59:15,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:15,491 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 82 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:15,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 499 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 518 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:59:15,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-24 00:59:15,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 378. [2022-02-24 00:59:15,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5656836461126005) internal successors, (584), 373 states have internal predecessors, (584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 588 transitions. [2022-02-24 00:59:15,501 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 588 transitions. Word has length 124 [2022-02-24 00:59:15,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:15,501 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 588 transitions. [2022-02-24 00:59:15,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 588 transitions. [2022-02-24 00:59:15,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 00:59:15,503 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:15,503 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:15,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:59:15,503 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:15,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:15,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1881776884, now seen corresponding path program 1 times [2022-02-24 00:59:15,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:15,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214416621] [2022-02-24 00:59:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:15,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:15,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:15,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214416621] [2022-02-24 00:59:15,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214416621] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:15,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:15,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:15,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481651390] [2022-02-24 00:59:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:15,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:15,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:15,623 INFO L87 Difference]: Start difference. First operand 378 states and 588 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:17,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:19,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:21,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:23,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:23,897 INFO L93 Difference]: Finished difference Result 848 states and 1323 transitions. [2022-02-24 00:59:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:23,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-24 00:59:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:23,899 INFO L225 Difference]: With dead ends: 848 [2022-02-24 00:59:23,899 INFO L226 Difference]: Without dead ends: 496 [2022-02-24 00:59:23,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:23,901 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 122 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:23,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 370 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 00:59:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-02-24 00:59:23,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 376. [2022-02-24 00:59:23,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.5660377358490567) internal successors, (581), 371 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 585 transitions. [2022-02-24 00:59:23,909 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 585 transitions. Word has length 124 [2022-02-24 00:59:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:23,910 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 585 transitions. [2022-02-24 00:59:23,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 585 transitions. [2022-02-24 00:59:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 00:59:23,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:23,911 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:23,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:59:23,911 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1400381102, now seen corresponding path program 1 times [2022-02-24 00:59:23,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:23,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959854557] [2022-02-24 00:59:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:24,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:24,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959854557] [2022-02-24 00:59:24,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959854557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:24,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:24,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:24,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663206952] [2022-02-24 00:59:24,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:24,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:24,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:24,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:24,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:24,048 INFO L87 Difference]: Start difference. First operand 376 states and 585 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:25,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:27,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:29,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:29,552 INFO L93 Difference]: Finished difference Result 804 states and 1251 transitions. [2022-02-24 00:59:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:29,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-24 00:59:29,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:29,554 INFO L225 Difference]: With dead ends: 804 [2022-02-24 00:59:29,554 INFO L226 Difference]: Without dead ends: 454 [2022-02-24 00:59:29,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:29,555 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 121 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:29,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:59:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-02-24 00:59:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 376. [2022-02-24 00:59:29,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.5606469002695418) internal successors, (579), 371 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) [2022-02-24 00:59:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 583 transitions. [2022-02-24 00:59:29,564 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 583 transitions. Word has length 125 [2022-02-24 00:59:29,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:29,564 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 583 transitions. [2022-02-24 00:59:29,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:29,564 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 583 transitions. [2022-02-24 00:59:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:59:29,566 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:29,566 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:29,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:59:29,566 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:29,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1931032870, now seen corresponding path program 1 times [2022-02-24 00:59:29,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:29,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118733411] [2022-02-24 00:59:29,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:29,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:29,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:59:29,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:29,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118733411] [2022-02-24 00:59:29,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118733411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:29,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:29,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:29,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255390341] [2022-02-24 00:59:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:29,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:29,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:29,683 INFO L87 Difference]: Start difference. First operand 376 states and 583 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:31,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:34,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:36,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:36,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:36,562 INFO L93 Difference]: Finished difference Result 818 states and 1273 transitions. [2022-02-24 00:59:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:36,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-24 00:59:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:36,564 INFO L225 Difference]: With dead ends: 818 [2022-02-24 00:59:36,564 INFO L226 Difference]: Without dead ends: 468 [2022-02-24 00:59:36,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:36,565 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 100 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:36,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 499 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 510 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:59:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-02-24 00:59:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 394. [2022-02-24 00:59:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5501285347043703) internal successors, (603), 389 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 607 transitions. [2022-02-24 00:59:36,574 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 607 transitions. Word has length 132 [2022-02-24 00:59:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:36,574 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 607 transitions. [2022-02-24 00:59:36,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 607 transitions. [2022-02-24 00:59:36,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-24 00:59:36,576 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:36,576 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:36,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:59:36,576 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:36,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:36,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1156016251, now seen corresponding path program 1 times [2022-02-24 00:59:36,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:36,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927085016] [2022-02-24 00:59:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:36,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:59:36,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:36,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927085016] [2022-02-24 00:59:36,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927085016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:36,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:36,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:36,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613883529] [2022-02-24 00:59:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:36,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:36,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:36,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:36,701 INFO L87 Difference]: Start difference. First operand 394 states and 607 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:37,890 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 [] [2022-02-24 00:59:40,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:42,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:42,871 INFO L93 Difference]: Finished difference Result 852 states and 1319 transitions. [2022-02-24 00:59:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:42,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-24 00:59:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:42,873 INFO L225 Difference]: With dead ends: 852 [2022-02-24 00:59:42,873 INFO L226 Difference]: Without dead ends: 484 [2022-02-24 00:59:42,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:42,874 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 100 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:42,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 689 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 619 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:59:42,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-02-24 00:59:42,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 393. [2022-02-24 00:59:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 388 states have internal predecessors, (602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:42,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 606 transitions. [2022-02-24 00:59:42,883 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 606 transitions. Word has length 132 [2022-02-24 00:59:42,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:42,883 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 606 transitions. [2022-02-24 00:59:42,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:42,883 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 606 transitions. [2022-02-24 00:59:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:59:42,884 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:42,884 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:42,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:59:42,885 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:42,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:42,885 INFO L85 PathProgramCache]: Analyzing trace with hash -512603857, now seen corresponding path program 1 times [2022-02-24 00:59:42,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:42,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682989566] [2022-02-24 00:59:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:42,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:43,010 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:43,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:43,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682989566] [2022-02-24 00:59:43,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682989566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:43,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:43,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:43,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090262578] [2022-02-24 00:59:43,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:43,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:43,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:43,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:43,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:43,012 INFO L87 Difference]: Start difference. First operand 393 states and 606 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:45,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:47,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:49,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:49,724 INFO L93 Difference]: Finished difference Result 878 states and 1357 transitions. [2022-02-24 00:59:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:49,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-24 00:59:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:49,726 INFO L225 Difference]: With dead ends: 878 [2022-02-24 00:59:49,726 INFO L226 Difference]: Without dead ends: 511 [2022-02-24 00:59:49,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:49,728 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 114 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:49,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 371 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-02-24 00:59:49,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-02-24 00:59:49,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 436. [2022-02-24 00:59:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.556844547563805) internal successors, (671), 431 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:49,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 675 transitions. [2022-02-24 00:59:49,737 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 675 transitions. Word has length 133 [2022-02-24 00:59:49,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:49,737 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 675 transitions. [2022-02-24 00:59:49,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:49,738 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 675 transitions. [2022-02-24 00:59:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:59:49,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:49,739 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:49,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:59:49,739 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:49,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:49,740 INFO L85 PathProgramCache]: Analyzing trace with hash -796549232, now seen corresponding path program 1 times [2022-02-24 00:59:49,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:49,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297351079] [2022-02-24 00:59:49,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:49,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:49,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:49,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:49,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297351079] [2022-02-24 00:59:49,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297351079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:49,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:49,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:49,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177944510] [2022-02-24 00:59:49,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:49,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:49,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:49,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:49,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:49,862 INFO L87 Difference]: Start difference. First operand 436 states and 675 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:52,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:54,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:56,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:59:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:59:56,908 INFO L93 Difference]: Finished difference Result 928 states and 1440 transitions. [2022-02-24 00:59:56,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:59:56,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have 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 [2022-02-24 00:59:56,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:59:56,910 INFO L225 Difference]: With dead ends: 928 [2022-02-24 00:59:56,910 INFO L226 Difference]: Without dead ends: 518 [2022-02-24 00:59:56,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:59:56,911 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 60 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:59:56,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 507 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-02-24 00:59:56,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-02-24 00:59:56,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 478. [2022-02-24 00:59:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5560253699788584) internal successors, (736), 473 states have internal predecessors, (736), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 740 transitions. [2022-02-24 00:59:56,922 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 740 transitions. Word has length 134 [2022-02-24 00:59:56,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:59:56,922 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 740 transitions. [2022-02-24 00:59:56,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:56,922 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 740 transitions. [2022-02-24 00:59:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:59:56,923 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:59:56,923 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:59:56,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:59:56,924 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:59:56,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:59:56,924 INFO L85 PathProgramCache]: Analyzing trace with hash 371647023, now seen corresponding path program 1 times [2022-02-24 00:59:56,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:59:56,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82606408] [2022-02-24 00:59:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:59:56,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:59:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:59:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:59:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:59:57,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:59:57,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82606408] [2022-02-24 00:59:57,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82606408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:59:57,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:59:57,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:59:57,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90781532] [2022-02-24 00:59:57,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:59:57,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:59:57,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:59:57,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:59:57,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:59:57,056 INFO L87 Difference]: Start difference. First operand 478 states and 740 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:59:59,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:01,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:02,655 INFO L93 Difference]: Finished difference Result 1008 states and 1561 transitions. [2022-02-24 01:00:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have 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 [2022-02-24 01:00:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:02,658 INFO L225 Difference]: With dead ends: 1008 [2022-02-24 01:00:02,658 INFO L226 Difference]: Without dead ends: 554 [2022-02-24 01:00:02,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:02,659 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 115 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:02,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 398 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 01:00:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-24 01:00:02,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 480. [2022-02-24 01:00:02,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5557894736842106) internal successors, (739), 475 states have internal predecessors, (739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 743 transitions. [2022-02-24 01:00:02,670 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 743 transitions. Word has length 134 [2022-02-24 01:00:02,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:02,670 INFO L470 AbstractCegarLoop]: Abstraction has 480 states and 743 transitions. [2022-02-24 01:00:02,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:02,670 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 743 transitions. [2022-02-24 01:00:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 01:00:02,672 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:02,672 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:02,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 01:00:02,672 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1478589548, now seen corresponding path program 1 times [2022-02-24 01:00:02,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:02,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387967435] [2022-02-24 01:00:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:00:02,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:02,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387967435] [2022-02-24 01:00:02,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387967435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:02,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:02,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:02,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933912040] [2022-02-24 01:00:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:02,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:02,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:02,810 INFO L87 Difference]: Start difference. First operand 480 states and 743 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:05,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:07,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:09,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:10,059 INFO L93 Difference]: Finished difference Result 998 states and 1547 transitions. [2022-02-24 01:00:10,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:10,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-24 01:00:10,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:10,061 INFO L225 Difference]: With dead ends: 998 [2022-02-24 01:00:10,062 INFO L226 Difference]: Without dead ends: 544 [2022-02-24 01:00:10,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:10,063 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 137 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 53 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:10,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 01:00:10,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-02-24 01:00:10,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 480. [2022-02-24 01:00:10,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5368421052631578) internal successors, (730), 475 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:10,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 734 transitions. [2022-02-24 01:00:10,073 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 734 transitions. Word has length 146 [2022-02-24 01:00:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:10,074 INFO L470 AbstractCegarLoop]: Abstraction has 480 states and 734 transitions. [2022-02-24 01:00:10,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 734 transitions. [2022-02-24 01:00:10,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 01:00:10,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:10,075 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:10,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 01:00:10,076 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:10,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:10,076 INFO L85 PathProgramCache]: Analyzing trace with hash 24615192, now seen corresponding path program 1 times [2022-02-24 01:00:10,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:10,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823664301] [2022-02-24 01:00:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:10,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 01:00:10,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:10,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823664301] [2022-02-24 01:00:10,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823664301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:10,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:10,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:10,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67206079] [2022-02-24 01:00:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:10,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:10,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:10,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:10,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:10,195 INFO L87 Difference]: Start difference. First operand 480 states and 734 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:11,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:13,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:15,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:17,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:18,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:18,402 INFO L93 Difference]: Finished difference Result 1040 states and 1595 transitions. [2022-02-24 01:00:18,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:18,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-24 01:00:18,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:18,404 INFO L225 Difference]: With dead ends: 1040 [2022-02-24 01:00:18,404 INFO L226 Difference]: Without dead ends: 586 [2022-02-24 01:00:18,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:18,415 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 118 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 47 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:18,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 414 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 479 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 01:00:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-02-24 01:00:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 510. [2022-02-24 01:00:18,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.5267326732673268) internal successors, (771), 505 states have internal predecessors, (771), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:18,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 775 transitions. [2022-02-24 01:00:18,428 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 775 transitions. Word has length 146 [2022-02-24 01:00:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:18,428 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 775 transitions. [2022-02-24 01:00:18,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 775 transitions. [2022-02-24 01:00:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-24 01:00:18,429 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:18,430 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:18,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 01:00:18,430 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash 511559468, now seen corresponding path program 1 times [2022-02-24 01:00:18,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:18,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125858898] [2022-02-24 01:00:18,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:18,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 01:00:18,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:18,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125858898] [2022-02-24 01:00:18,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125858898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:18,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:18,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:18,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785043667] [2022-02-24 01:00:18,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:18,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:18,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:18,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:18,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:18,551 INFO L87 Difference]: Start difference. First operand 510 states and 775 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:19,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:21,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:23,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:25,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:26,277 INFO L93 Difference]: Finished difference Result 1058 states and 1611 transitions. [2022-02-24 01:00:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:26,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-24 01:00:26,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:26,279 INFO L225 Difference]: With dead ends: 1058 [2022-02-24 01:00:26,279 INFO L226 Difference]: Without dead ends: 574 [2022-02-24 01:00:26,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:26,280 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 117 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 53 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:26,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 01:00:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-02-24 01:00:26,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 510. [2022-02-24 01:00:26,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.5128712871287129) internal successors, (764), 505 states have internal predecessors, (764), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:26,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 768 transitions. [2022-02-24 01:00:26,291 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 768 transitions. Word has length 147 [2022-02-24 01:00:26,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:26,291 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 768 transitions. [2022-02-24 01:00:26,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:26,292 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 768 transitions. [2022-02-24 01:00:26,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 01:00:26,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:26,293 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:26,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 01:00:26,293 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:26,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:26,294 INFO L85 PathProgramCache]: Analyzing trace with hash -70968412, now seen corresponding path program 1 times [2022-02-24 01:00:26,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:26,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280405598] [2022-02-24 01:00:26,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:26,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 01:00:26,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:26,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280405598] [2022-02-24 01:00:26,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280405598] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:26,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:26,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:26,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258735808] [2022-02-24 01:00:26,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:26,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:26,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:26,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:26,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:26,462 INFO L87 Difference]: Start difference. First operand 510 states and 768 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:27,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:29,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:31,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:33,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:34,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:34,172 INFO L93 Difference]: Finished difference Result 1100 states and 1661 transitions. [2022-02-24 01:00:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:34,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-24 01:00:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:34,174 INFO L225 Difference]: With dead ends: 1100 [2022-02-24 01:00:34,174 INFO L226 Difference]: Without dead ends: 616 [2022-02-24 01:00:34,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:34,175 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 119 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:34,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 01:00:34,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-02-24 01:00:34,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 538. [2022-02-24 01:00:34,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 533 states have (on average 1.5009380863039399) internal successors, (800), 533 states have internal predecessors, (800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:34,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 804 transitions. [2022-02-24 01:00:34,186 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 804 transitions. Word has length 149 [2022-02-24 01:00:34,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:34,186 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 804 transitions. [2022-02-24 01:00:34,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 804 transitions. [2022-02-24 01:00:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-24 01:00:34,188 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:34,188 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:34,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 01:00:34,188 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:34,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1676992206, now seen corresponding path program 1 times [2022-02-24 01:00:34,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:34,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510808975] [2022-02-24 01:00:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 01:00:34,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:34,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510808975] [2022-02-24 01:00:34,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510808975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:34,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:34,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:34,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789582133] [2022-02-24 01:00:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:34,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:34,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:34,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:34,306 INFO L87 Difference]: Start difference. First operand 538 states and 804 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:35,869 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 [] [2022-02-24 01:00:37,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:39,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:41,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:41,888 INFO L93 Difference]: Finished difference Result 1070 states and 1604 transitions. [2022-02-24 01:00:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:41,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-02-24 01:00:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:41,890 INFO L225 Difference]: With dead ends: 1070 [2022-02-24 01:00:41,890 INFO L226 Difference]: Without dead ends: 558 [2022-02-24 01:00:41,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:41,891 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 50 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:41,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 543 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 01:00:41,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-02-24 01:00:41,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 538. [2022-02-24 01:00:41,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 533 states have (on average 1.4990619136960601) internal successors, (799), 533 states have internal predecessors, (799), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:41,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 803 transitions. [2022-02-24 01:00:41,902 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 803 transitions. Word has length 150 [2022-02-24 01:00:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:41,903 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 803 transitions. [2022-02-24 01:00:41,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 803 transitions. [2022-02-24 01:00:41,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-02-24 01:00:41,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:41,904 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:41,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 01:00:41,905 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:41,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:41,905 INFO L85 PathProgramCache]: Analyzing trace with hash 743637869, now seen corresponding path program 1 times [2022-02-24 01:00:41,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:41,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337349057] [2022-02-24 01:00:41,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:41,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-24 01:00:42,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:42,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337349057] [2022-02-24 01:00:42,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337349057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:42,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:42,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:42,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828546651] [2022-02-24 01:00:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:42,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:42,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:42,031 INFO L87 Difference]: Start difference. First operand 538 states and 803 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:44,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:44,400 INFO L93 Difference]: Finished difference Result 1069 states and 1605 transitions. [2022-02-24 01:00:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-02-24 01:00:44,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:44,402 INFO L225 Difference]: With dead ends: 1069 [2022-02-24 01:00:44,402 INFO L226 Difference]: Without dead ends: 557 [2022-02-24 01:00:44,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:44,403 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 25 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:44,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 607 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 01:00:44,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-02-24 01:00:44,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 546. [2022-02-24 01:00:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 541 states have (on average 1.5009242144177448) internal successors, (812), 541 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 816 transitions. [2022-02-24 01:00:44,413 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 816 transitions. Word has length 150 [2022-02-24 01:00:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:44,413 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 816 transitions. [2022-02-24 01:00:44,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:44,414 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 816 transitions. [2022-02-24 01:00:44,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-24 01:00:44,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:44,415 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:44,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 01:00:44,415 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:44,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:44,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1962051972, now seen corresponding path program 1 times [2022-02-24 01:00:44,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:44,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920948093] [2022-02-24 01:00:44,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:44,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:44,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:00:44,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:44,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920948093] [2022-02-24 01:00:44,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920948093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:44,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:44,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:44,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430587618] [2022-02-24 01:00:44,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:44,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:44,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:44,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:44,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:44,549 INFO L87 Difference]: Start difference. First operand 546 states and 816 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:46,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:48,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:50,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:52,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:52,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:52,700 INFO L93 Difference]: Finished difference Result 1130 states and 1693 transitions. [2022-02-24 01:00:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:52,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-24 01:00:52,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:52,702 INFO L225 Difference]: With dead ends: 1130 [2022-02-24 01:00:52,702 INFO L226 Difference]: Without dead ends: 610 [2022-02-24 01:00:52,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:52,703 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 123 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:52,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 424 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 483 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-24 01:00:52,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-02-24 01:00:52,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 546. [2022-02-24 01:00:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 541 states have (on average 1.4842883548983363) internal successors, (803), 541 states have internal predecessors, (803), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 807 transitions. [2022-02-24 01:00:52,714 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 807 transitions. Word has length 154 [2022-02-24 01:00:52,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:52,715 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 807 transitions. [2022-02-24 01:00:52,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:52,715 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 807 transitions. [2022-02-24 01:00:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-24 01:00:52,716 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:52,716 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:52,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 01:00:52,717 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:52,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash -497072477, now seen corresponding path program 1 times [2022-02-24 01:00:52,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:52,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921938837] [2022-02-24 01:00:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:52,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:52,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-24 01:00:52,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:52,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921938837] [2022-02-24 01:00:52,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921938837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:52,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:52,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:52,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207956429] [2022-02-24 01:00:52,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:52,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:52,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:52,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:52,871 INFO L87 Difference]: Start difference. First operand 546 states and 807 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:55,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:58,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:00:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:00:58,870 INFO L93 Difference]: Finished difference Result 1136 states and 1685 transitions. [2022-02-24 01:00:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:00:58,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-24 01:00:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:00:58,873 INFO L225 Difference]: With dead ends: 1136 [2022-02-24 01:00:58,873 INFO L226 Difference]: Without dead ends: 616 [2022-02-24 01:00:58,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:00:58,874 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 74 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:00:58,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 611 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 01:00:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-02-24 01:00:58,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 562. [2022-02-24 01:00:58,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4793536804308798) internal successors, (824), 557 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:58,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 828 transitions. [2022-02-24 01:00:58,885 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 828 transitions. Word has length 154 [2022-02-24 01:00:58,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:00:58,885 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 828 transitions. [2022-02-24 01:00:58,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:00:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 828 transitions. [2022-02-24 01:00:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 01:00:58,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:00:58,887 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:00:58,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 01:00:58,887 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:00:58,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:00:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash -713601832, now seen corresponding path program 1 times [2022-02-24 01:00:58,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:00:58,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650568497] [2022-02-24 01:00:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:00:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:00:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:00:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:00:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 01:00:59,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:00:59,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650568497] [2022-02-24 01:00:59,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650568497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:00:59,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:00:59,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:00:59,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238184627] [2022-02-24 01:00:59,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:00:59,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:00:59,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:00:59,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:00:59,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:00:59,010 INFO L87 Difference]: Start difference. First operand 562 states and 828 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:00,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:02,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:03,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:05,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:06,282 INFO L93 Difference]: Finished difference Result 1118 states and 1652 transitions. [2022-02-24 01:01:06,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:06,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-24 01:01:06,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:06,284 INFO L225 Difference]: With dead ends: 1118 [2022-02-24 01:01:06,284 INFO L226 Difference]: Without dead ends: 582 [2022-02-24 01:01:06,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:06,285 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 42 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:06,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 553 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-02-24 01:01:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-02-24 01:01:06,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 562. [2022-02-24 01:01:06,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4775583482944346) internal successors, (823), 557 states have internal predecessors, (823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:06,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 827 transitions. [2022-02-24 01:01:06,297 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 827 transitions. Word has length 156 [2022-02-24 01:01:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:06,297 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 827 transitions. [2022-02-24 01:01:06,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 827 transitions. [2022-02-24 01:01:06,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-24 01:01:06,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:06,299 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:06,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 01:01:06,299 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:06,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash 741405720, now seen corresponding path program 1 times [2022-02-24 01:01:06,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:06,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378737088] [2022-02-24 01:01:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:06,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-24 01:01:06,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:06,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378737088] [2022-02-24 01:01:06,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378737088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:06,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:06,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:06,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657770012] [2022-02-24 01:01:06,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:06,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:06,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:06,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:06,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:06,421 INFO L87 Difference]: Start difference. First operand 562 states and 827 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:08,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:09,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:11,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:13,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:14,126 INFO L93 Difference]: Finished difference Result 1116 states and 1648 transitions. [2022-02-24 01:01:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-02-24 01:01:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:14,128 INFO L225 Difference]: With dead ends: 1116 [2022-02-24 01:01:14,128 INFO L226 Difference]: Without dead ends: 580 [2022-02-24 01:01:14,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:14,129 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 39 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:14,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 555 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-24 01:01:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-24 01:01:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 562. [2022-02-24 01:01:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4757630161579893) internal successors, (822), 557 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 826 transitions. [2022-02-24 01:01:14,140 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 826 transitions. Word has length 157 [2022-02-24 01:01:14,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:14,140 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 826 transitions. [2022-02-24 01:01:14,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:14,140 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 826 transitions. [2022-02-24 01:01:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-02-24 01:01:14,142 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:14,142 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:14,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 01:01:14,142 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2060278266, now seen corresponding path program 1 times [2022-02-24 01:01:14,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:14,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937262751] [2022-02-24 01:01:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:01:14,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:14,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937262751] [2022-02-24 01:01:14,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937262751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:14,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:14,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:14,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663367348] [2022-02-24 01:01:14,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:14,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:14,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:14,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:14,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:14,284 INFO L87 Difference]: Start difference. First operand 562 states and 826 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:15,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:18,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:20,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:20,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:20,503 INFO L93 Difference]: Finished difference Result 1116 states and 1646 transitions. [2022-02-24 01:01:20,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:20,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-02-24 01:01:20,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:20,505 INFO L225 Difference]: With dead ends: 1116 [2022-02-24 01:01:20,505 INFO L226 Difference]: Without dead ends: 580 [2022-02-24 01:01:20,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:20,507 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 48 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:20,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 555 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 01:01:20,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-24 01:01:20,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 562. [2022-02-24 01:01:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4739676840215439) internal successors, (821), 557 states have internal predecessors, (821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 825 transitions. [2022-02-24 01:01:20,526 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 825 transitions. Word has length 160 [2022-02-24 01:01:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:20,527 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 825 transitions. [2022-02-24 01:01:20,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 825 transitions. [2022-02-24 01:01:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-02-24 01:01:20,528 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:20,530 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:20,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 01:01:20,530 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:20,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash -707827440, now seen corresponding path program 1 times [2022-02-24 01:01:20,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:20,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093934404] [2022-02-24 01:01:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:01:20,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:20,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093934404] [2022-02-24 01:01:20,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093934404] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:20,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:20,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:20,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747454749] [2022-02-24 01:01:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:20,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:20,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:20,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:20,665 INFO L87 Difference]: Start difference. First operand 562 states and 825 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:21,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:23,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:25,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:27,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:28,305 INFO L93 Difference]: Finished difference Result 1162 states and 1711 transitions. [2022-02-24 01:01:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-02-24 01:01:28,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:28,307 INFO L225 Difference]: With dead ends: 1162 [2022-02-24 01:01:28,307 INFO L226 Difference]: Without dead ends: 626 [2022-02-24 01:01:28,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:28,308 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 120 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:28,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 01:01:28,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-02-24 01:01:28,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 562. [2022-02-24 01:01:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4578096947935368) internal successors, (812), 557 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 816 transitions. [2022-02-24 01:01:28,318 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 816 transitions. Word has length 161 [2022-02-24 01:01:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:28,319 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 816 transitions. [2022-02-24 01:01:28,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 816 transitions. [2022-02-24 01:01:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-24 01:01:28,320 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:28,320 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:28,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 01:01:28,321 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1350299265, now seen corresponding path program 1 times [2022-02-24 01:01:28,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:28,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537846834] [2022-02-24 01:01:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:01:28,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:28,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537846834] [2022-02-24 01:01:28,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537846834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:28,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:28,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:28,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426455334] [2022-02-24 01:01:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:28,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:28,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:28,440 INFO L87 Difference]: Start difference. First operand 562 states and 816 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:29,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:31,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:33,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:35,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:35,964 INFO L93 Difference]: Finished difference Result 1204 states and 1755 transitions. [2022-02-24 01:01:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-02-24 01:01:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:35,966 INFO L225 Difference]: With dead ends: 1204 [2022-02-24 01:01:35,966 INFO L226 Difference]: Without dead ends: 668 [2022-02-24 01:01:35,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:35,967 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 113 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:35,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 01:01:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-02-24 01:01:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 595. [2022-02-24 01:01:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4508474576271186) internal successors, (856), 590 states have internal predecessors, (856), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:35,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 860 transitions. [2022-02-24 01:01:35,978 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 860 transitions. Word has length 163 [2022-02-24 01:01:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:35,979 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 860 transitions. [2022-02-24 01:01:35,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:35,979 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 860 transitions. [2022-02-24 01:01:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-24 01:01:35,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:35,980 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:35,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 01:01:35,980 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:35,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:35,981 INFO L85 PathProgramCache]: Analyzing trace with hash -858480992, now seen corresponding path program 1 times [2022-02-24 01:01:35,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:35,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083799636] [2022-02-24 01:01:35,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:35,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:01:36,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:36,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083799636] [2022-02-24 01:01:36,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083799636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:36,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:36,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:36,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282885929] [2022-02-24 01:01:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:36,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:36,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:36,108 INFO L87 Difference]: Start difference. First operand 595 states and 860 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:39,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:41,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:43,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:43,470 INFO L93 Difference]: Finished difference Result 1176 states and 1706 transitions. [2022-02-24 01:01:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:43,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have 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 [2022-02-24 01:01:43,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:43,472 INFO L225 Difference]: With dead ends: 1176 [2022-02-24 01:01:43,472 INFO L226 Difference]: Without dead ends: 607 [2022-02-24 01:01:43,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:43,474 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:43,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 565 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-02-24 01:01:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-02-24 01:01:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 595. [2022-02-24 01:01:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4491525423728813) internal successors, (855), 590 states have internal predecessors, (855), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 859 transitions. [2022-02-24 01:01:43,483 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 859 transitions. Word has length 164 [2022-02-24 01:01:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:43,483 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 859 transitions. [2022-02-24 01:01:43,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 859 transitions. [2022-02-24 01:01:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-24 01:01:43,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:43,485 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:43,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 01:01:43,485 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:43,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:43,485 INFO L85 PathProgramCache]: Analyzing trace with hash -521967861, now seen corresponding path program 1 times [2022-02-24 01:01:43,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:43,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664654837] [2022-02-24 01:01:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:43,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-24 01:01:43,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:43,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664654837] [2022-02-24 01:01:43,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664654837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:43,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:43,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:43,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014832376] [2022-02-24 01:01:43,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:43,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:43,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:43,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:43,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:43,642 INFO L87 Difference]: Start difference. First operand 595 states and 859 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) [2022-02-24 01:01:45,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:46,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:49,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:49,466 INFO L93 Difference]: Finished difference Result 1228 states and 1779 transitions. [2022-02-24 01:01:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:49,466 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 172 [2022-02-24 01:01:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:49,468 INFO L225 Difference]: With dead ends: 1228 [2022-02-24 01:01:49,468 INFO L226 Difference]: Without dead ends: 659 [2022-02-24 01:01:49,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:49,469 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 117 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:49,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 414 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 01:01:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-02-24 01:01:49,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 595. [2022-02-24 01:01:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.435593220338983) internal successors, (847), 590 states have internal predecessors, (847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 851 transitions. [2022-02-24 01:01:49,480 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 851 transitions. Word has length 172 [2022-02-24 01:01:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:49,480 INFO L470 AbstractCegarLoop]: Abstraction has 595 states and 851 transitions. [2022-02-24 01:01:49,481 INFO L471 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) [2022-02-24 01:01:49,481 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 851 transitions. [2022-02-24 01:01:49,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 01:01:49,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:49,482 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:49,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 01:01:49,482 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:49,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:49,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1184106110, now seen corresponding path program 1 times [2022-02-24 01:01:49,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:49,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620286382] [2022-02-24 01:01:49,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:49,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-02-24 01:01:49,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:49,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620286382] [2022-02-24 01:01:49,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620286382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:49,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:49,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:01:49,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032513987] [2022-02-24 01:01:49,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:49,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:01:49,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:01:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:01:49,609 INFO L87 Difference]: Start difference. First operand 595 states and 851 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) [2022-02-24 01:01:51,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:53,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:54,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:56,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:01:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:01:56,797 INFO L93 Difference]: Finished difference Result 1226 states and 1761 transitions. [2022-02-24 01:01:56,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:01:56,797 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 173 [2022-02-24 01:01:56,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:01:56,799 INFO L225 Difference]: With dead ends: 1226 [2022-02-24 01:01:56,799 INFO L226 Difference]: Without dead ends: 657 [2022-02-24 01:01:56,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:01:56,800 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 128 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:01:56,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 390 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-24 01:01:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-02-24 01:01:56,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 579. [2022-02-24 01:01:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 574 states have (on average 1.4233449477351916) internal successors, (817), 574 states have internal predecessors, (817), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 821 transitions. [2022-02-24 01:01:56,809 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 821 transitions. Word has length 173 [2022-02-24 01:01:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:01:56,810 INFO L470 AbstractCegarLoop]: Abstraction has 579 states and 821 transitions. [2022-02-24 01:01:56,810 INFO L471 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) [2022-02-24 01:01:56,810 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 821 transitions. [2022-02-24 01:01:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-24 01:01:56,811 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:01:56,811 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:01:56,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 01:01:56,811 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:01:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:01:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2102470359, now seen corresponding path program 1 times [2022-02-24 01:01:56,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:01:56,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088230841] [2022-02-24 01:01:56,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:01:56,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:01:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:56,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:01:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:01:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-24 01:01:56,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:01:56,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088230841] [2022-02-24 01:01:56,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088230841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:01:56,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:01:56,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:01:56,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24364938] [2022-02-24 01:01:56,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:01:56,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:01:56,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:01:56,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:01:56,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:01:56,946 INFO L87 Difference]: Start difference. First operand 579 states and 821 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:01:58,046 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 [] [2022-02-24 01:02:00,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:02,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:02,465 INFO L93 Difference]: Finished difference Result 1676 states and 2391 transitions. [2022-02-24 01:02:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:02:02,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 174 [2022-02-24 01:02:02,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:02,468 INFO L225 Difference]: With dead ends: 1676 [2022-02-24 01:02:02,468 INFO L226 Difference]: Without dead ends: 1123 [2022-02-24 01:02:02,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:02,469 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:02,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 578 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 01:02:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-02-24 01:02:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2022-02-24 01:02:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1118 states have (on average 1.4177101967799641) internal successors, (1585), 1118 states have internal predecessors, (1585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1589 transitions. [2022-02-24 01:02:02,503 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1589 transitions. Word has length 174 [2022-02-24 01:02:02,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:02,503 INFO L470 AbstractCegarLoop]: Abstraction has 1123 states and 1589 transitions. [2022-02-24 01:02:02,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1589 transitions. [2022-02-24 01:02:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-24 01:02:02,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:02,505 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:02,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 01:02:02,505 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:02,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:02,506 INFO L85 PathProgramCache]: Analyzing trace with hash 689207752, now seen corresponding path program 1 times [2022-02-24 01:02:02,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:02,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432156786] [2022-02-24 01:02:02,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:02,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 01:02:02,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:02,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432156786] [2022-02-24 01:02:02,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432156786] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:02,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:02,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:02:02,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978457661] [2022-02-24 01:02:02,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:02,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:02:02,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:02:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:02,643 INFO L87 Difference]: Start difference. First operand 1123 states and 1589 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:05,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:07,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:08,067 INFO L93 Difference]: Finished difference Result 2732 states and 3882 transitions. [2022-02-24 01:02:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:02:08,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-02-24 01:02:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:08,071 INFO L225 Difference]: With dead ends: 2732 [2022-02-24 01:02:08,071 INFO L226 Difference]: Without dead ends: 1635 [2022-02-24 01:02:08,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:08,073 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:08,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 579 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 436 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 01:02:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-02-24 01:02:08,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1635. [2022-02-24 01:02:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1630 states have (on average 1.4159509202453988) internal successors, (2308), 1630 states have internal predecessors, (2308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2312 transitions. [2022-02-24 01:02:08,097 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2312 transitions. Word has length 175 [2022-02-24 01:02:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:08,097 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2312 transitions. [2022-02-24 01:02:08,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2312 transitions. [2022-02-24 01:02:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-24 01:02:08,100 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:08,100 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:08,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 01:02:08,100 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:08,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:08,100 INFO L85 PathProgramCache]: Analyzing trace with hash -340760717, now seen corresponding path program 1 times [2022-02-24 01:02:08,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:08,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752585015] [2022-02-24 01:02:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:08,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-24 01:02:08,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:08,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752585015] [2022-02-24 01:02:08,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752585015] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:08,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:08,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:02:08,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563320783] [2022-02-24 01:02:08,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:08,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:02:08,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:08,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:02:08,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:08,220 INFO L87 Difference]: Start difference. First operand 1635 states and 2312 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:09,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:11,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:13,705 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 [] [2022-02-24 01:02:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:14,096 INFO L93 Difference]: Finished difference Result 3747 states and 5316 transitions. [2022-02-24 01:02:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:02:14,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-24 01:02:14,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:14,103 INFO L225 Difference]: With dead ends: 3747 [2022-02-24 01:02:14,103 INFO L226 Difference]: Without dead ends: 2138 [2022-02-24 01:02:14,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:14,106 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:14,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 459 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 316 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 01:02:14,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-02-24 01:02:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2138. [2022-02-24 01:02:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 2133 states have (on average 1.4153774027191748) internal successors, (3019), 2133 states have internal predecessors, (3019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3023 transitions. [2022-02-24 01:02:14,144 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3023 transitions. Word has length 176 [2022-02-24 01:02:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:14,144 INFO L470 AbstractCegarLoop]: Abstraction has 2138 states and 3023 transitions. [2022-02-24 01:02:14,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3023 transitions. [2022-02-24 01:02:14,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-24 01:02:14,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:14,147 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:14,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 01:02:14,147 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:14,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:14,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2144302994, now seen corresponding path program 1 times [2022-02-24 01:02:14,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:14,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274319366] [2022-02-24 01:02:14,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:14,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-24 01:02:14,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:14,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274319366] [2022-02-24 01:02:14,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274319366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:14,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:14,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:02:14,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646355297] [2022-02-24 01:02:14,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:14,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:02:14,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:14,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:02:14,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:14,264 INFO L87 Difference]: Start difference. First operand 2138 states and 3023 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:16,440 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 [] [2022-02-24 01:02:18,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:18,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:18,266 INFO L93 Difference]: Finished difference Result 4277 states and 6053 transitions. [2022-02-24 01:02:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:02:18,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-24 01:02:18,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:18,273 INFO L225 Difference]: With dead ends: 4277 [2022-02-24 01:02:18,273 INFO L226 Difference]: Without dead ends: 2165 [2022-02-24 01:02:18,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:18,276 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:18,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 425 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 01:02:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2022-02-24 01:02:18,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2165. [2022-02-24 01:02:18,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 2160 states have (on average 1.413888888888889) internal successors, (3054), 2160 states have internal predecessors, (3054), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3058 transitions. [2022-02-24 01:02:18,314 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3058 transitions. Word has length 176 [2022-02-24 01:02:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:18,315 INFO L470 AbstractCegarLoop]: Abstraction has 2165 states and 3058 transitions. [2022-02-24 01:02:18,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3058 transitions. [2022-02-24 01:02:18,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-24 01:02:18,317 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:18,318 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:18,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 01:02:18,318 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:18,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:18,318 INFO L85 PathProgramCache]: Analyzing trace with hash -464764367, now seen corresponding path program 1 times [2022-02-24 01:02:18,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:18,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268392380] [2022-02-24 01:02:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:18,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-24 01:02:18,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:18,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268392380] [2022-02-24 01:02:18,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268392380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:18,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:18,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:02:18,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192186994] [2022-02-24 01:02:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:18,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:02:18,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:02:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:18,440 INFO L87 Difference]: Start difference. First operand 2165 states and 3058 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:20,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:22,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:24,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:24,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:24,702 INFO L93 Difference]: Finished difference Result 4306 states and 6089 transitions. [2022-02-24 01:02:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:02:24,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-02-24 01:02:24,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:24,707 INFO L225 Difference]: With dead ends: 4306 [2022-02-24 01:02:24,707 INFO L226 Difference]: Without dead ends: 2167 [2022-02-24 01:02:24,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:24,710 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:24,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 404 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 01:02:24,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-02-24 01:02:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2167. [2022-02-24 01:02:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2162 states have (on average 1.4135060129509713) internal successors, (3056), 2162 states have internal predecessors, (3056), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3060 transitions. [2022-02-24 01:02:24,745 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3060 transitions. Word has length 176 [2022-02-24 01:02:24,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:24,745 INFO L470 AbstractCegarLoop]: Abstraction has 2167 states and 3060 transitions. [2022-02-24 01:02:24,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3060 transitions. [2022-02-24 01:02:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-02-24 01:02:24,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:24,749 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:24,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 01:02:24,750 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:24,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:24,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1590377407, now seen corresponding path program 1 times [2022-02-24 01:02:24,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:24,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747331776] [2022-02-24 01:02:24,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:24,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:24,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-02-24 01:02:24,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:24,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747331776] [2022-02-24 01:02:24,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747331776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:24,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:24,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:02:24,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596200719] [2022-02-24 01:02:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:24,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:02:24,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:02:24,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:02:24,952 INFO L87 Difference]: Start difference. First operand 2167 states and 3060 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:26,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:28,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:30,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:31,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:31,171 INFO L93 Difference]: Finished difference Result 4555 states and 6419 transitions. [2022-02-24 01:02:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:02:31,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 279 [2022-02-24 01:02:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:31,176 INFO L225 Difference]: With dead ends: 4555 [2022-02-24 01:02:31,176 INFO L226 Difference]: Without dead ends: 2416 [2022-02-24 01:02:31,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:02:31,178 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 42 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:31,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 625 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 01:02:31,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-02-24 01:02:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2307. [2022-02-24 01:02:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2302 states have (on average 1.4109470026064292) internal successors, (3248), 2302 states have internal predecessors, (3248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3252 transitions. [2022-02-24 01:02:31,221 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3252 transitions. Word has length 279 [2022-02-24 01:02:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:31,222 INFO L470 AbstractCegarLoop]: Abstraction has 2307 states and 3252 transitions. [2022-02-24 01:02:31,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3252 transitions. [2022-02-24 01:02:31,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-02-24 01:02:31,225 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:31,226 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:31,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 01:02:31,226 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:31,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:31,229 INFO L85 PathProgramCache]: Analyzing trace with hash -849681903, now seen corresponding path program 1 times [2022-02-24 01:02:31,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:31,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754467218] [2022-02-24 01:02:31,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:31,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-02-24 01:02:31,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:31,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754467218] [2022-02-24 01:02:31,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754467218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:31,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:31,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:02:31,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590603956] [2022-02-24 01:02:31,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:31,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:02:31,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:02:31,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:02:31,405 INFO L87 Difference]: Start difference. First operand 2307 states and 3252 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:32,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:33,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:35,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:35,861 INFO L93 Difference]: Finished difference Result 4687 states and 6599 transitions. [2022-02-24 01:02:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:02:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 280 [2022-02-24 01:02:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:35,865 INFO L225 Difference]: With dead ends: 4687 [2022-02-24 01:02:35,865 INFO L226 Difference]: Without dead ends: 2408 [2022-02-24 01:02:35,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:02:35,868 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 39 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:35,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 621 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-24 01:02:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-02-24 01:02:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2311. [2022-02-24 01:02:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 2306 states have (on average 1.4102341717259324) internal successors, (3252), 2306 states have internal predecessors, (3252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3256 transitions. [2022-02-24 01:02:35,916 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3256 transitions. Word has length 280 [2022-02-24 01:02:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:35,916 INFO L470 AbstractCegarLoop]: Abstraction has 2311 states and 3256 transitions. [2022-02-24 01:02:35,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3256 transitions. [2022-02-24 01:02:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-24 01:02:35,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:35,919 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:35,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 01:02:35,919 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 533126362, now seen corresponding path program 1 times [2022-02-24 01:02:35,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:35,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260691498] [2022-02-24 01:02:35,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:35,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:36,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-02-24 01:02:36,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:36,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260691498] [2022-02-24 01:02:36,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260691498] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:36,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:36,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:02:36,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367351085] [2022-02-24 01:02:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:36,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:02:36,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:02:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:02:36,091 INFO L87 Difference]: Start difference. First operand 2311 states and 3256 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:37,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:39,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:41,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:41,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:41,786 INFO L93 Difference]: Finished difference Result 4691 states and 6599 transitions. [2022-02-24 01:02:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:02:41,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-02-24 01:02:41,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:41,790 INFO L225 Difference]: With dead ends: 4691 [2022-02-24 01:02:41,790 INFO L226 Difference]: Without dead ends: 2408 [2022-02-24 01:02:41,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:02:41,792 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 33 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:41,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 619 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 01:02:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-02-24 01:02:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2331. [2022-02-24 01:02:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2326 states have (on average 1.4067067927773) internal successors, (3272), 2326 states have internal predecessors, (3272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3276 transitions. [2022-02-24 01:02:41,821 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3276 transitions. Word has length 299 [2022-02-24 01:02:41,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:41,821 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3276 transitions. [2022-02-24 01:02:41,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3276 transitions. [2022-02-24 01:02:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-24 01:02:41,825 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:41,825 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:41,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 01:02:41,825 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:41,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash 240740537, now seen corresponding path program 1 times [2022-02-24 01:02:41,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:41,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969630387] [2022-02-24 01:02:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:41,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-02-24 01:02:42,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:42,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969630387] [2022-02-24 01:02:42,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969630387] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:42,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:42,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:02:42,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081104868] [2022-02-24 01:02:42,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:42,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:02:42,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:42,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:02:42,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:42,014 INFO L87 Difference]: Start difference. First operand 2331 states and 3276 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:43,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:45,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:47,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:47,775 INFO L93 Difference]: Finished difference Result 5220 states and 7355 transitions. [2022-02-24 01:02:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:02:47,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-02-24 01:02:47,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:47,778 INFO L225 Difference]: With dead ends: 5220 [2022-02-24 01:02:47,778 INFO L226 Difference]: Without dead ends: 2917 [2022-02-24 01:02:47,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:47,781 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:47,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 01:02:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-02-24 01:02:47,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2917. [2022-02-24 01:02:47,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2912 states have (on average 1.40625) internal successors, (4095), 2912 states have internal predecessors, (4095), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4099 transitions. [2022-02-24 01:02:47,815 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4099 transitions. Word has length 299 [2022-02-24 01:02:47,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:47,815 INFO L470 AbstractCegarLoop]: Abstraction has 2917 states and 4099 transitions. [2022-02-24 01:02:47,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4099 transitions. [2022-02-24 01:02:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-02-24 01:02:47,819 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:47,819 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:47,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 01:02:47,819 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash 643593417, now seen corresponding path program 1 times [2022-02-24 01:02:47,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:47,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067588747] [2022-02-24 01:02:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-02-24 01:02:48,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:48,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067588747] [2022-02-24 01:02:48,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067588747] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:48,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:48,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:02:48,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990722800] [2022-02-24 01:02:48,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:48,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:02:48,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:48,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:02:48,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:02:48,013 INFO L87 Difference]: Start difference. First operand 2917 states and 4099 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:49,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:51,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:53,568 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 [] [2022-02-24 01:02:53,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:02:53,978 INFO L93 Difference]: Finished difference Result 5892 states and 8269 transitions. [2022-02-24 01:02:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:02:53,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 300 [2022-02-24 01:02:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:02:53,982 INFO L225 Difference]: With dead ends: 5892 [2022-02-24 01:02:53,982 INFO L226 Difference]: Without dead ends: 3003 [2022-02-24 01:02:53,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:02:53,986 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 46 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:02:53,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 617 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 01:02:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2022-02-24 01:02:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 2917. [2022-02-24 01:02:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2912 states have (on average 1.404532967032967) internal successors, (4090), 2912 states have internal predecessors, (4090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4094 transitions. [2022-02-24 01:02:54,036 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4094 transitions. Word has length 300 [2022-02-24 01:02:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:02:54,036 INFO L470 AbstractCegarLoop]: Abstraction has 2917 states and 4094 transitions. [2022-02-24 01:02:54,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4094 transitions. [2022-02-24 01:02:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-02-24 01:02:54,040 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:02:54,040 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:02:54,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 01:02:54,040 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:02:54,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:02:54,041 INFO L85 PathProgramCache]: Analyzing trace with hash -797458658, now seen corresponding path program 1 times [2022-02-24 01:02:54,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:02:54,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522499146] [2022-02-24 01:02:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:02:54,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:02:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:02:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:02:54,254 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-02-24 01:02:54,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:02:54,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522499146] [2022-02-24 01:02:54,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522499146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:02:54,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:02:54,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:02:54,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809556970] [2022-02-24 01:02:54,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:02:54,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:02:54,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:02:54,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:02:54,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:02:54,256 INFO L87 Difference]: Start difference. First operand 2917 states and 4094 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:02:55,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:57,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:02:59,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:00,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:00,009 INFO L93 Difference]: Finished difference Result 6360 states and 8945 transitions. [2022-02-24 01:03:00,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:03:00,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 300 [2022-02-24 01:03:00,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:00,015 INFO L225 Difference]: With dead ends: 6360 [2022-02-24 01:03:00,015 INFO L226 Difference]: Without dead ends: 3471 [2022-02-24 01:03:00,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:00,019 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:00,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 443 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 01:03:00,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3471 states. [2022-02-24 01:03:00,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3471 to 3471. [2022-02-24 01:03:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3466 states have (on average 1.4042123485285631) internal successors, (4867), 3466 states have internal predecessors, (4867), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 4871 transitions. [2022-02-24 01:03:00,099 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 4871 transitions. Word has length 300 [2022-02-24 01:03:00,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:00,099 INFO L470 AbstractCegarLoop]: Abstraction has 3471 states and 4871 transitions. [2022-02-24 01:03:00,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:00,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 4871 transitions. [2022-02-24 01:03:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-24 01:03:00,104 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:00,104 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:00,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 01:03:00,105 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:00,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:00,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1486767437, now seen corresponding path program 1 times [2022-02-24 01:03:00,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:00,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968191638] [2022-02-24 01:03:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-02-24 01:03:00,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:00,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968191638] [2022-02-24 01:03:00,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968191638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:03:00,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:03:00,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:03:00,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518678381] [2022-02-24 01:03:00,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:00,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:03:00,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:00,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:03:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:00,313 INFO L87 Difference]: Start difference. First operand 3471 states and 4871 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:03,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:03,970 INFO L93 Difference]: Finished difference Result 7459 states and 10487 transitions. [2022-02-24 01:03:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:03:03,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-24 01:03:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:03,976 INFO L225 Difference]: With dead ends: 7459 [2022-02-24 01:03:03,976 INFO L226 Difference]: Without dead ends: 4016 [2022-02-24 01:03:03,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:03,981 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:03,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 582 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-24 01:03:03,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-02-24 01:03:04,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 4016. [2022-02-24 01:03:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 4011 states have (on average 1.4041386187983047) internal successors, (5632), 4011 states have internal predecessors, (5632), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5636 transitions. [2022-02-24 01:03:04,075 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5636 transitions. Word has length 301 [2022-02-24 01:03:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:04,075 INFO L470 AbstractCegarLoop]: Abstraction has 4016 states and 5636 transitions. [2022-02-24 01:03:04,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5636 transitions. [2022-02-24 01:03:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-02-24 01:03:04,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:04,083 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:04,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 01:03:04,083 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash 323931843, now seen corresponding path program 1 times [2022-02-24 01:03:04,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:04,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386920346] [2022-02-24 01:03:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:04,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:04,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-02-24 01:03:04,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:04,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386920346] [2022-02-24 01:03:04,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386920346] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:03:04,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:03:04,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:03:04,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773287457] [2022-02-24 01:03:04,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:04,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:03:04,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:04,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:03:04,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:04,315 INFO L87 Difference]: Start difference. First operand 4016 states and 5636 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:05,502 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 [] [2022-02-24 01:03:07,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:08,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:09,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:09,379 INFO L93 Difference]: Finished difference Result 8591 states and 12076 transitions. [2022-02-24 01:03:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:03:09,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 427 [2022-02-24 01:03:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:09,385 INFO L225 Difference]: With dead ends: 8591 [2022-02-24 01:03:09,385 INFO L226 Difference]: Without dead ends: 4603 [2022-02-24 01:03:09,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:09,391 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:09,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-24 01:03:09,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2022-02-24 01:03:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4603. [2022-02-24 01:03:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4598 states have (on average 1.403871248368856) internal successors, (6455), 4598 states have internal predecessors, (6455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 6459 transitions. [2022-02-24 01:03:09,486 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 6459 transitions. Word has length 427 [2022-02-24 01:03:09,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:09,487 INFO L470 AbstractCegarLoop]: Abstraction has 4603 states and 6459 transitions. [2022-02-24 01:03:09,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:09,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 6459 transitions. [2022-02-24 01:03:09,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-24 01:03:09,494 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:09,494 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:09,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 01:03:09,495 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:09,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:09,495 INFO L85 PathProgramCache]: Analyzing trace with hash 926909104, now seen corresponding path program 1 times [2022-02-24 01:03:09,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:09,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438937022] [2022-02-24 01:03:09,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:09,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2022-02-24 01:03:09,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:09,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438937022] [2022-02-24 01:03:09,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438937022] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:03:09,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:03:09,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:03:09,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133542325] [2022-02-24 01:03:09,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:09,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:03:09,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:09,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:03:09,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:09,809 INFO L87 Difference]: Start difference. First operand 4603 states and 6459 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:11,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:14,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:14,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:14,568 INFO L93 Difference]: Finished difference Result 9770 states and 13729 transitions. [2022-02-24 01:03:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:03:14,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-24 01:03:14,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:14,574 INFO L225 Difference]: With dead ends: 9770 [2022-02-24 01:03:14,575 INFO L226 Difference]: Without dead ends: 5195 [2022-02-24 01:03:14,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:14,582 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 147 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:14,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 382 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 265 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 01:03:14,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2022-02-24 01:03:14,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5195. [2022-02-24 01:03:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5190 states have (on average 1.4052023121387283) internal successors, (7293), 5190 states have internal predecessors, (7293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 7297 transitions. [2022-02-24 01:03:14,677 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 7297 transitions. Word has length 428 [2022-02-24 01:03:14,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:14,678 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 7297 transitions. [2022-02-24 01:03:14,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 7297 transitions. [2022-02-24 01:03:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-02-24 01:03:14,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:14,722 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:14,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 01:03:14,722 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:14,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:14,722 INFO L85 PathProgramCache]: Analyzing trace with hash -71724402, now seen corresponding path program 1 times [2022-02-24 01:03:14,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:14,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284881448] [2022-02-24 01:03:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:14,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-02-24 01:03:14,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:14,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284881448] [2022-02-24 01:03:14,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284881448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:03:14,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:03:14,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:03:14,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064835939] [2022-02-24 01:03:14,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:14,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:03:14,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:14,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:03:14,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:14,987 INFO L87 Difference]: Start difference. First operand 5195 states and 7297 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:16,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:17,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:18,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:19,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:19,408 INFO L93 Difference]: Finished difference Result 10917 states and 15353 transitions. [2022-02-24 01:03:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:03:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-02-24 01:03:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:19,413 INFO L225 Difference]: With dead ends: 10917 [2022-02-24 01:03:19,414 INFO L226 Difference]: Without dead ends: 5750 [2022-02-24 01:03:19,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:19,419 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:19,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-24 01:03:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5750 states. [2022-02-24 01:03:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5750 to 5750. [2022-02-24 01:03:19,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5750 states, 5745 states have (on average 1.4048738033072237) internal successors, (8071), 5745 states have internal predecessors, (8071), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5750 states to 5750 states and 8075 transitions. [2022-02-24 01:03:19,558 INFO L78 Accepts]: Start accepts. Automaton has 5750 states and 8075 transitions. Word has length 428 [2022-02-24 01:03:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:19,559 INFO L470 AbstractCegarLoop]: Abstraction has 5750 states and 8075 transitions. [2022-02-24 01:03:19,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5750 states and 8075 transitions. [2022-02-24 01:03:19,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-02-24 01:03:19,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:19,570 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:19,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 01:03:19,570 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash -205779879, now seen corresponding path program 1 times [2022-02-24 01:03:19,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:19,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864881309] [2022-02-24 01:03:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:19,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 1059 proven. 0 refuted. 0 times theorem prover too weak. 1829 trivial. 0 not checked. [2022-02-24 01:03:20,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:20,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864881309] [2022-02-24 01:03:20,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864881309] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:03:20,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:03:20,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:03:20,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023599082] [2022-02-24 01:03:20,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:20,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:03:20,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:20,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:03:20,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:03:20,013 INFO L87 Difference]: Start difference. First operand 5750 states and 8075 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:22,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:23,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:26,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:26,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:26,446 INFO L93 Difference]: Finished difference Result 11863 states and 16663 transitions. [2022-02-24 01:03:26,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:03:26,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 557 [2022-02-24 01:03:26,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:26,452 INFO L225 Difference]: With dead ends: 11863 [2022-02-24 01:03:26,452 INFO L226 Difference]: Without dead ends: 6141 [2022-02-24 01:03:26,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:03:26,458 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 27 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:26,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 602 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 439 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-24 01:03:26,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2022-02-24 01:03:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 6010. [2022-02-24 01:03:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6005 states have (on average 1.405661948376353) internal successors, (8441), 6005 states have internal predecessors, (8441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 8445 transitions. [2022-02-24 01:03:26,576 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 8445 transitions. Word has length 557 [2022-02-24 01:03:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:26,577 INFO L470 AbstractCegarLoop]: Abstraction has 6010 states and 8445 transitions. [2022-02-24 01:03:26,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 8445 transitions. [2022-02-24 01:03:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-02-24 01:03:26,588 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:26,588 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:26,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 01:03:26,589 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:26,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1694333736, now seen corresponding path program 1 times [2022-02-24 01:03:26,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:26,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473679885] [2022-02-24 01:03:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:26,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:26,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-02-24 01:03:26,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:26,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473679885] [2022-02-24 01:03:26,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473679885] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:03:26,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:03:26,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:03:26,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688841488] [2022-02-24 01:03:26,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:26,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:03:26,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:26,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:03:26,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:26,869 INFO L87 Difference]: Start difference. First operand 6010 states and 8445 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:28,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:30,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:32,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:32,773 INFO L93 Difference]: Finished difference Result 12574 states and 17688 transitions. [2022-02-24 01:03:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:03:32,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-02-24 01:03:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:32,778 INFO L225 Difference]: With dead ends: 12574 [2022-02-24 01:03:32,778 INFO L226 Difference]: Without dead ends: 6592 [2022-02-24 01:03:32,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:03:32,784 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:32,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-24 01:03:32,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2022-02-24 01:03:32,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6592. [2022-02-24 01:03:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6587 states have (on average 1.4053438591164416) internal successors, (9257), 6587 states have internal predecessors, (9257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 9261 transitions. [2022-02-24 01:03:32,896 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 9261 transitions. Word has length 558 [2022-02-24 01:03:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:32,897 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 9261 transitions. [2022-02-24 01:03:32,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 9261 transitions. [2022-02-24 01:03:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-02-24 01:03:32,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:32,904 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:32,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 01:03:32,905 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:32,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:32,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1575939639, now seen corresponding path program 1 times [2022-02-24 01:03:32,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:32,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174293833] [2022-02-24 01:03:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:03:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1403 proven. 421 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2022-02-24 01:03:33,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:03:33,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174293833] [2022-02-24 01:03:33,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174293833] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:03:33,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792023327] [2022-02-24 01:03:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:33,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:03:33,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:03:33,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:03:33,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 01:03:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:03:35,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 41 conjunts are in the unsatisfiable core [2022-02-24 01:03:35,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:03:35,295 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:03:35,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:03:35,435 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 01:03:35,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 01:03:35,680 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:03:35,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 01:03:35,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 01:03:36,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-24 01:03:36,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-24 01:03:36,061 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-24 01:03:36,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-02-24 01:03:36,141 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 01:03:36,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-02-24 01:03:36,383 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:03:36,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 01:03:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1394 proven. 204 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2022-02-24 01:03:36,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:03:37,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-02-24 01:03:37,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-02-24 01:03:43,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 172 [2022-02-24 01:03:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1392 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2022-02-24 01:03:43,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792023327] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 01:03:43,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 01:03:43,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20, 14] total 34 [2022-02-24 01:03:43,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990977739] [2022-02-24 01:03:43,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:03:43,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 01:03:43,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:03:43,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 01:03:43,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=994, Unknown=2, NotChecked=0, Total=1122 [2022-02-24 01:03:43,557 INFO L87 Difference]: Start difference. First operand 6592 states and 9261 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:46,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:03:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:03:59,433 INFO L93 Difference]: Finished difference Result 16087 states and 22595 transitions. [2022-02-24 01:03:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 01:03:59,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-02-24 01:03:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:03:59,444 INFO L225 Difference]: With dead ends: 16087 [2022-02-24 01:03:59,444 INFO L226 Difference]: Without dead ends: 9523 [2022-02-24 01:03:59,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=164, Invalid=1236, Unknown=6, NotChecked=0, Total=1406 [2022-02-24 01:03:59,455 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 278 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 88 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:03:59,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1020 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 608 Invalid, 1 Unknown, 260 Unchecked, 3.6s Time] [2022-02-24 01:03:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-02-24 01:03:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 8405. [2022-02-24 01:03:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8405 states, 8400 states have (on average 1.4138095238095238) internal successors, (11876), 8400 states have internal predecessors, (11876), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8405 states to 8405 states and 11880 transitions. [2022-02-24 01:03:59,671 INFO L78 Accepts]: Start accepts. Automaton has 8405 states and 11880 transitions. Word has length 558 [2022-02-24 01:03:59,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:03:59,671 INFO L470 AbstractCegarLoop]: Abstraction has 8405 states and 11880 transitions. [2022-02-24 01:03:59,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:03:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8405 states and 11880 transitions. [2022-02-24 01:03:59,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-02-24 01:03:59,680 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:03:59,680 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:03:59,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-24 01:03:59,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:03:59,881 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:03:59,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:03:59,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1432119467, now seen corresponding path program 1 times [2022-02-24 01:03:59,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:03:59,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729167847] [2022-02-24 01:03:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:03:59,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:03:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2022-02-24 01:04:00,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:00,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729167847] [2022-02-24 01:04:00,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729167847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:04:00,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:04:00,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:04:00,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197564952] [2022-02-24 01:04:00,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:04:00,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:04:00,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:04:00,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:04:00,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:04:00,126 INFO L87 Difference]: Start difference. First operand 8405 states and 11880 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:01,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:03,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:04,405 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 [] [2022-02-24 01:04:05,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:05,870 INFO L93 Difference]: Finished difference Result 17020 states and 24019 transitions. [2022-02-24 01:04:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:04:05,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-02-24 01:04:05,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:05,882 INFO L225 Difference]: With dead ends: 17020 [2022-02-24 01:04:05,882 INFO L226 Difference]: Without dead ends: 8555 [2022-02-24 01:04:05,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:04:05,890 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 30 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:05,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 615 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 01:04:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8555 states. [2022-02-24 01:04:06,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8555 to 8328. [2022-02-24 01:04:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8323 states have (on average 1.4158356361888742) internal successors, (11784), 8323 states have internal predecessors, (11784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 11788 transitions. [2022-02-24 01:04:06,086 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 11788 transitions. Word has length 561 [2022-02-24 01:04:06,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:06,087 INFO L470 AbstractCegarLoop]: Abstraction has 8328 states and 11788 transitions. [2022-02-24 01:04:06,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 11788 transitions. [2022-02-24 01:04:06,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-02-24 01:04:06,099 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:06,099 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:04:06,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 01:04:06,101 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:06,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:06,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1730828264, now seen corresponding path program 1 times [2022-02-24 01:04:06,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:06,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683639317] [2022-02-24 01:04:06,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:06,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3526 backedges. 1674 proven. 0 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2022-02-24 01:04:06,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:06,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683639317] [2022-02-24 01:04:06,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683639317] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:04:06,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:04:06,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:04:06,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093952974] [2022-02-24 01:04:06,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:04:06,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:04:06,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:04:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:04:06,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:04:06,437 INFO L87 Difference]: Start difference. First operand 8328 states and 11788 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:07,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:08,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:10,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:12,769 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 [] [2022-02-24 01:04:13,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:13,344 INFO L93 Difference]: Finished difference Result 16855 states and 23824 transitions. [2022-02-24 01:04:13,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:04:13,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 610 [2022-02-24 01:04:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:13,352 INFO L225 Difference]: With dead ends: 16855 [2022-02-24 01:04:13,352 INFO L226 Difference]: Without dead ends: 8555 [2022-02-24 01:04:13,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:04:13,359 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 40 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:13,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 613 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 01:04:13,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8555 states. [2022-02-24 01:04:13,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8555 to 8328. [2022-02-24 01:04:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8323 states have (on average 1.414033401417758) internal successors, (11769), 8323 states have internal predecessors, (11769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 11773 transitions. [2022-02-24 01:04:13,522 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 11773 transitions. Word has length 610 [2022-02-24 01:04:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:13,522 INFO L470 AbstractCegarLoop]: Abstraction has 8328 states and 11773 transitions. [2022-02-24 01:04:13,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:13,522 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 11773 transitions. [2022-02-24 01:04:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-02-24 01:04:13,532 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:13,532 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:04:13,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-24 01:04:13,532 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:13,533 INFO L85 PathProgramCache]: Analyzing trace with hash 565846642, now seen corresponding path program 1 times [2022-02-24 01:04:13,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:13,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410715573] [2022-02-24 01:04:13,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:13,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3553 backedges. 1691 proven. 0 refuted. 0 times theorem prover too weak. 1862 trivial. 0 not checked. [2022-02-24 01:04:13,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:13,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410715573] [2022-02-24 01:04:13,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410715573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:04:13,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:04:13,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:04:13,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622434986] [2022-02-24 01:04:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:04:13,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:04:13,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:04:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:04:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:04:13,804 INFO L87 Difference]: Start difference. First operand 8328 states and 11773 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:15,259 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 [] [2022-02-24 01:04:16,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:18,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:20,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:21,374 INFO L93 Difference]: Finished difference Result 16795 states and 23715 transitions. [2022-02-24 01:04:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:04:21,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 612 [2022-02-24 01:04:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:21,384 INFO L225 Difference]: With dead ends: 16795 [2022-02-24 01:04:21,385 INFO L226 Difference]: Without dead ends: 8495 [2022-02-24 01:04:21,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:04:21,392 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 34 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:21,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-02-24 01:04:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8495 states. [2022-02-24 01:04:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8495 to 8328. [2022-02-24 01:04:21,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8323 states have (on average 1.4122311666466418) internal successors, (11754), 8323 states have internal predecessors, (11754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 11758 transitions. [2022-02-24 01:04:21,532 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 11758 transitions. Word has length 612 [2022-02-24 01:04:21,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:21,532 INFO L470 AbstractCegarLoop]: Abstraction has 8328 states and 11758 transitions. [2022-02-24 01:04:21,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 11758 transitions. [2022-02-24 01:04:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-02-24 01:04:21,543 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:21,543 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2022-02-24 01:04:21,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 01:04:21,544 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:21,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -546319260, now seen corresponding path program 1 times [2022-02-24 01:04:21,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:21,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331886401] [2022-02-24 01:04:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:21,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:21,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 1551 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2022-02-24 01:04:21,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:21,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331886401] [2022-02-24 01:04:21,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331886401] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:04:21,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:04:21,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:04:21,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892092082] [2022-02-24 01:04:21,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:04:21,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:04:21,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:04:21,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:04:21,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:04:21,870 INFO L87 Difference]: Start difference. First operand 8328 states and 11758 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:23,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:25,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:27,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:29,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:29,850 INFO L93 Difference]: Finished difference Result 16735 states and 23610 transitions. [2022-02-24 01:04:29,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:04:29,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-02-24 01:04:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:29,858 INFO L225 Difference]: With dead ends: 16735 [2022-02-24 01:04:29,858 INFO L226 Difference]: Without dead ends: 8300 [2022-02-24 01:04:29,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:04:29,864 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:29,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 597 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 01:04:29,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8300 states. [2022-02-24 01:04:29,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8300 to 8193. [2022-02-24 01:04:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8193 states, 8188 states have (on average 1.4171958964338056) internal successors, (11604), 8188 states have internal predecessors, (11604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:29,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8193 states to 8193 states and 11608 transitions. [2022-02-24 01:04:29,989 INFO L78 Accepts]: Start accepts. Automaton has 8193 states and 11608 transitions. Word has length 624 [2022-02-24 01:04:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:29,989 INFO L470 AbstractCegarLoop]: Abstraction has 8193 states and 11608 transitions. [2022-02-24 01:04:29,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8193 states and 11608 transitions. [2022-02-24 01:04:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-02-24 01:04:29,999 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:29,999 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 14, 14, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:04:30,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 01:04:30,000 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:30,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:30,000 INFO L85 PathProgramCache]: Analyzing trace with hash 460564013, now seen corresponding path program 1 times [2022-02-24 01:04:30,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:30,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210165774] [2022-02-24 01:04:30,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:30,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3872 backedges. 1596 proven. 0 refuted. 0 times theorem prover too weak. 2276 trivial. 0 not checked. [2022-02-24 01:04:30,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:30,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210165774] [2022-02-24 01:04:30,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210165774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:04:30,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:04:30,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:04:30,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525110930] [2022-02-24 01:04:30,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:04:30,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:04:30,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:04:30,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:04:30,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:04:30,442 INFO L87 Difference]: Start difference. First operand 8193 states and 11608 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:32,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:34,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:36,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:38,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:38,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:38,940 INFO L93 Difference]: Finished difference Result 16405 states and 23235 transitions. [2022-02-24 01:04:38,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:04:38,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 636 [2022-02-24 01:04:38,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:38,948 INFO L225 Difference]: With dead ends: 16405 [2022-02-24 01:04:38,948 INFO L226 Difference]: Without dead ends: 8180 [2022-02-24 01:04:38,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:04:38,953 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 15 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:38,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 589 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 403 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 01:04:38,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2022-02-24 01:04:39,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8133. [2022-02-24 01:04:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8133 states, 8128 states have (on average 1.4184301181102361) internal successors, (11529), 8128 states have internal predecessors, (11529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:39,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8133 states to 8133 states and 11533 transitions. [2022-02-24 01:04:39,070 INFO L78 Accepts]: Start accepts. Automaton has 8133 states and 11533 transitions. Word has length 636 [2022-02-24 01:04:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:39,070 INFO L470 AbstractCegarLoop]: Abstraction has 8133 states and 11533 transitions. [2022-02-24 01:04:39,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 8133 states and 11533 transitions. [2022-02-24 01:04:39,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-02-24 01:04:39,079 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:39,079 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:04:39,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 01:04:39,079 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:39,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash 269092640, now seen corresponding path program 1 times [2022-02-24 01:04:39,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:39,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091793625] [2022-02-24 01:04:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:39,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1991 proven. 0 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2022-02-24 01:04:39,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:39,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091793625] [2022-02-24 01:04:39,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091793625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:04:39,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:04:39,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 01:04:39,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754732052] [2022-02-24 01:04:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:04:39,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 01:04:39,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:04:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 01:04:39,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:04:39,516 INFO L87 Difference]: Start difference. First operand 8133 states and 11533 transitions. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 5 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:41,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:43,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:44,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:46,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:04:47,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:04:47,713 INFO L93 Difference]: Finished difference Result 19521 states and 27702 transitions. [2022-02-24 01:04:47,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 01:04:47,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 5 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-02-24 01:04:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:04:47,723 INFO L225 Difference]: With dead ends: 19521 [2022-02-24 01:04:47,723 INFO L226 Difference]: Without dead ends: 11416 [2022-02-24 01:04:47,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-24 01:04:47,730 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 112 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:04:47,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 955 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 879 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-02-24 01:04:47,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-02-24 01:04:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 9415. [2022-02-24 01:04:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9415 states, 9410 states have (on average 1.4210414452709883) internal successors, (13372), 9410 states have internal predecessors, (13372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9415 states to 9415 states and 13376 transitions. [2022-02-24 01:04:47,879 INFO L78 Accepts]: Start accepts. Automaton has 9415 states and 13376 transitions. Word has length 645 [2022-02-24 01:04:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:04:47,879 INFO L470 AbstractCegarLoop]: Abstraction has 9415 states and 13376 transitions. [2022-02-24 01:04:47,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 5 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:04:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 9415 states and 13376 transitions. [2022-02-24 01:04:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-02-24 01:04:47,889 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:04:47,890 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:04:47,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 01:04:47,890 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:04:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:04:47,890 INFO L85 PathProgramCache]: Analyzing trace with hash -360571007, now seen corresponding path program 1 times [2022-02-24 01:04:47,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:04:47,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151098145] [2022-02-24 01:04:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:47,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:04:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:04:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1551 proven. 687 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-02-24 01:04:50,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:04:50,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151098145] [2022-02-24 01:04:50,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151098145] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:04:50,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506246085] [2022-02-24 01:04:50,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:04:50,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:04:50,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:04:50,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:04:50,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 01:04:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:04:51,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 111 conjunts are in the unsatisfiable core [2022-02-24 01:04:51,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:04:51,562 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:04:51,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:04:51,704 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 01:04:51,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-24 01:04:51,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-24 01:04:52,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 01:04:52,232 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-02-24 01:04:52,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2022-02-24 01:04:52,243 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-24 01:04:52,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2022-02-24 01:04:52,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-02-24 01:04:52,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-02-24 01:04:52,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-02-24 01:04:52,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:52,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 57 [2022-02-24 01:04:52,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:52,324 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2022-02-24 01:04:52,368 INFO L356 Elim1Store]: treesize reduction 110, result has 33.7 percent of original size [2022-02-24 01:04:52,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 115 [2022-02-24 01:04:52,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:52,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 72 [2022-02-24 01:04:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:52,946 INFO L356 Elim1Store]: treesize reduction 100, result has 32.4 percent of original size [2022-02-24 01:04:52,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 85 [2022-02-24 01:04:52,958 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:04:52,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 106 [2022-02-24 01:04:54,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,052 INFO L356 Elim1Store]: treesize reduction 155, result has 11.9 percent of original size [2022-02-24 01:04:54,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 71 [2022-02-24 01:04:54,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 64 [2022-02-24 01:04:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-24 01:04:54,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,173 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-24 01:04:54,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 90 [2022-02-24 01:04:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 80 [2022-02-24 01:04:54,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:54,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-24 01:04:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:55,092 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 01:04:55,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 168 [2022-02-24 01:04:55,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:55,129 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 01:04:55,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-24 01:04:55,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:55,205 INFO L356 Elim1Store]: treesize reduction 79, result has 51.2 percent of original size [2022-02-24 01:04:55,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 115 [2022-02-24 01:04:57,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,489 INFO L356 Elim1Store]: treesize reduction 176, result has 26.7 percent of original size [2022-02-24 01:04:57,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 310 treesize of output 332 [2022-02-24 01:04:57,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:04:57,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 338 treesize of output 278 [2022-02-24 01:04:57,534 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-02-24 01:04:57,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 338 treesize of output 272 [2022-02-24 01:05:01,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 241 [2022-02-24 01:05:01,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 247 [2022-02-24 01:05:01,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,202 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-24 01:05:01,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 305 treesize of output 302 [2022-02-24 01:05:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 176 [2022-02-24 01:05:01,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:05:01,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 104 [2022-02-24 01:05:01,498 INFO L356 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-02-24 01:05:01,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 140 [2022-02-24 01:05:01,629 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 01:05:01,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 01:05:01,764 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 01:05:01,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-24 01:05:01,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1783 proven. 518 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-02-24 01:05:01,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:05:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1691 proven. 139 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-02-24 01:05:05,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506246085] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 01:05:05,132 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 01:05:05,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 12] total 44 [2022-02-24 01:05:05,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020814106] [2022-02-24 01:05:05,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 01:05:05,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 01:05:05,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:05:05,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 01:05:05,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1614, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 01:05:05,136 INFO L87 Difference]: Start difference. First operand 9415 states and 13376 transitions. Second operand has 44 states, 44 states have (on average 13.909090909090908) internal successors, (612), 43 states have internal predecessors, (612), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:05:06,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:08,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:10,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:12,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:15,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:18,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:20,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:22,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:25,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:05:27,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:06:02,153 INFO L93 Difference]: Finished difference Result 64056 states and 88986 transitions. [2022-02-24 01:06:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2022-02-24 01:06:02,154 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 13.909090909090908) internal successors, (612), 43 states have internal predecessors, (612), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-02-24 01:06:02,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:06:02,221 INFO L225 Difference]: With dead ends: 64056 [2022-02-24 01:06:02,222 INFO L226 Difference]: Without dead ends: 54669 [2022-02-24 01:06:02,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1779 GetRequests, 1391 SyntacticMatches, 34 SemanticMatches, 354 ConstructedPredicates, 0 IntricatePredicates, 8 DeprecatedPredicates, 59248 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=12015, Invalid=114365, Unknown=0, NotChecked=0, Total=126380 [2022-02-24 01:06:02,242 INFO L933 BasicCegarLoop]: 1118 mSDtfsCounter, 5255 mSDsluCounter, 19969 mSDsCounter, 0 mSdLazyCounter, 17024 mSolverCounterSat, 935 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5255 SdHoareTripleChecker+Valid, 21087 SdHoareTripleChecker+Invalid, 27409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 17024 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 9441 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:06:02,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5255 Valid, 21087 Invalid, 27409 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [935 Valid, 17024 Invalid, 9 Unknown, 9441 Unchecked, 36.7s Time] [2022-02-24 01:06:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54669 states. [2022-02-24 01:06:03,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54669 to 26273. [2022-02-24 01:06:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26273 states, 26268 states have (on average 1.422034414496726) internal successors, (37354), 26268 states have internal predecessors, (37354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:06:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26273 states to 26273 states and 37358 transitions. [2022-02-24 01:06:03,088 INFO L78 Accepts]: Start accepts. Automaton has 26273 states and 37358 transitions. Word has length 645 [2022-02-24 01:06:03,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:06:03,088 INFO L470 AbstractCegarLoop]: Abstraction has 26273 states and 37358 transitions. [2022-02-24 01:06:03,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 13.909090909090908) internal successors, (612), 43 states have internal predecessors, (612), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:06:03,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26273 states and 37358 transitions. [2022-02-24 01:06:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-02-24 01:06:03,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:06:03,110 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:06:03,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-24 01:06:03,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2022-02-24 01:06:03,311 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:06:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:06:03,311 INFO L85 PathProgramCache]: Analyzing trace with hash -192917773, now seen corresponding path program 1 times [2022-02-24 01:06:03,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:06:03,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023758489] [2022-02-24 01:06:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:06:03,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:06:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:06:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:06:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:06:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1610 proven. 286 refuted. 0 times theorem prover too weak. 2007 trivial. 0 not checked. [2022-02-24 01:06:05,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:06:05,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023758489] [2022-02-24 01:06:05,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023758489] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:06:05,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573494050] [2022-02-24 01:06:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:06:05,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:06:05,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:06:05,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:06:05,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 01:06:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:06:06,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 39 conjunts are in the unsatisfiable core [2022-02-24 01:06:06,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:06:07,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:06:07,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-02-24 01:06:07,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:06:07,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-02-24 01:06:07,262 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-02-24 01:06:07,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 34 [2022-02-24 01:06:07,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:06:07,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-02-24 01:06:07,385 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-02-24 01:06:07,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 60 [2022-02-24 01:06:07,398 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 01:06:07,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2022-02-24 01:06:07,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 48 [2022-02-24 01:06:07,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 30 [2022-02-24 01:06:07,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-24 01:06:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1908 proven. 1 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2022-02-24 01:06:07,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:06:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1908 proven. 1 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2022-02-24 01:06:08,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573494050] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 01:06:08,447 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 01:06:08,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 26 [2022-02-24 01:06:08,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241960658] [2022-02-24 01:06:08,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 01:06:08,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 01:06:08,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:06:08,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 01:06:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-02-24 01:06:08,449 INFO L87 Difference]: Start difference. First operand 26273 states and 37358 transitions. Second operand has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 25 states have internal predecessors, (409), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:06:10,236 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 [] [2022-02-24 01:06:12,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:15,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:16,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:17,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:19,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:21,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:23,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:26,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:28,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:31,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:33,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:35,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:06:51,116 INFO L93 Difference]: Finished difference Result 153680 states and 211004 transitions. [2022-02-24 01:06:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-24 01:06:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 25 states have internal predecessors, (409), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 650 [2022-02-24 01:06:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:06:51,281 INFO L225 Difference]: With dead ends: 153680 [2022-02-24 01:06:51,281 INFO L226 Difference]: Without dead ends: 127435 [2022-02-24 01:06:51,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1453 GetRequests, 1324 SyntacticMatches, 3 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5505 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2260, Invalid=13996, Unknown=0, NotChecked=0, Total=16256 [2022-02-24 01:06:51,313 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 1902 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 11747 mSolverCounterSat, 451 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 9022 SdHoareTripleChecker+Invalid, 12207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 11747 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:06:51,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 9022 Invalid, 12207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 11747 Invalid, 9 Unknown, 0 Unchecked, 35.6s Time] [2022-02-24 01:06:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127435 states. [2022-02-24 01:06:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127435 to 54691. [2022-02-24 01:06:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54691 states, 54686 states have (on average 1.4221007204769045) internal successors, (77769), 54686 states have internal predecessors, (77769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:06:53,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54691 states to 54691 states and 77773 transitions. [2022-02-24 01:06:53,575 INFO L78 Accepts]: Start accepts. Automaton has 54691 states and 77773 transitions. Word has length 650 [2022-02-24 01:06:53,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:06:53,575 INFO L470 AbstractCegarLoop]: Abstraction has 54691 states and 77773 transitions. [2022-02-24 01:06:53,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 25 states have internal predecessors, (409), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:06:53,576 INFO L276 IsEmpty]: Start isEmpty. Operand 54691 states and 77773 transitions. [2022-02-24 01:06:53,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-02-24 01:06:53,638 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:06:53,638 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 15, 15, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:06:53,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-24 01:06:53,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:06:53,839 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:06:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:06:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1280149766, now seen corresponding path program 1 times [2022-02-24 01:06:53,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:06:53,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798137994] [2022-02-24 01:06:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:06:53,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:06:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:06:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:06:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:06:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 1640 proven. 0 refuted. 0 times theorem prover too weak. 2681 trivial. 0 not checked. [2022-02-24 01:06:54,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:06:54,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798137994] [2022-02-24 01:06:54,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798137994] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:06:54,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:06:54,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:06:54,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140882398] [2022-02-24 01:06:54,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:06:54,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:06:54,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 01:06:54,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:06:54,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:06:54,173 INFO L87 Difference]: Start difference. First operand 54691 states and 77773 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:06:56,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 01:06:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:06:58,219 INFO L93 Difference]: Finished difference Result 116064 states and 165185 transitions. [2022-02-24 01:06:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:06:58,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 665 [2022-02-24 01:06:58,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:06:58,285 INFO L225 Difference]: With dead ends: 116064 [2022-02-24 01:06:58,285 INFO L226 Difference]: Without dead ends: 61401 [2022-02-24 01:06:58,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:06:58,332 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:06:58,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 379 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 263 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 01:06:58,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61401 states. [2022-02-24 01:07:00,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61401 to 61401. [2022-02-24 01:07:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61401 states, 61396 states have (on average 1.4237898234412665) internal successors, (87415), 61396 states have internal predecessors, (87415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:07:00,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61401 states to 61401 states and 87419 transitions. [2022-02-24 01:07:00,571 INFO L78 Accepts]: Start accepts. Automaton has 61401 states and 87419 transitions. Word has length 665 [2022-02-24 01:07:00,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:07:00,572 INFO L470 AbstractCegarLoop]: Abstraction has 61401 states and 87419 transitions. [2022-02-24 01:07:00,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 01:07:00,572 INFO L276 IsEmpty]: Start isEmpty. Operand 61401 states and 87419 transitions. [2022-02-24 01:07:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2022-02-24 01:07:00,622 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:07:00,623 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:07:00,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-24 01:07:00,623 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:07:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:07:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash -820872816, now seen corresponding path program 2 times [2022-02-24 01:07:00,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 01:07:00,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291842215] [2022-02-24 01:07:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:07:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:07:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:07:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:07:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:07:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4334 backedges. 2373 proven. 1057 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2022-02-24 01:07:04,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 01:07:04,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291842215] [2022-02-24 01:07:04,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291842215] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 01:07:04,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947312965] [2022-02-24 01:07:04,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-24 01:07:04,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 01:07:04,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:07:04,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 01:07:04,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-24 01:07:37,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-24 01:07:37,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-24 01:07:37,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 145 conjunts are in the unsatisfiable core [2022-02-24 01:07:37,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 01:07:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:37,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 01:07:38,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,079 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:38,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 01:07:38,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 01:07:38,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-24 01:07:38,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,129 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:38,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-02-24 01:07:38,298 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-02-24 01:07:38,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-02-24 01:07:38,314 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-02-24 01:07:38,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-02-24 01:07:38,330 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-02-24 01:07:38,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-02-24 01:07:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-02-24 01:07:38,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-02-24 01:07:38,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-02-24 01:07:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-02-24 01:07:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-02-24 01:07:38,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:38,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-02-24 01:07:38,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,017 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 01:07:39,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-02-24 01:07:39,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,050 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 01:07:39,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-02-24 01:07:39,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,082 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 01:07:39,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 52 [2022-02-24 01:07:39,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-02-24 01:07:39,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-02-24 01:07:39,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:39,312 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-02-24 01:07:39,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 211 treesize of output 229 [2022-02-24 01:07:41,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 224 [2022-02-24 01:07:41,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,635 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-02-24 01:07:41,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 260 treesize of output 258 [2022-02-24 01:07:41,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:41,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 240 [2022-02-24 01:07:46,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:46,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:46,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:46,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:46,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:46,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:46,289 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-02-24 01:07:46,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 257 [2022-02-24 01:07:47,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-02-24 01:07:47,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,116 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:47,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-02-24 01:07:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-02-24 01:07:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:47,201 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:47,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-02-24 01:07:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,249 INFO L356 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2022-02-24 01:07:50,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2022-02-24 01:07:50,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,282 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-02-24 01:07:50,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-02-24 01:07:50,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 113 [2022-02-24 01:07:50,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:50,718 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:50,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 125 [2022-02-24 01:07:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-02-24 01:07:55,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,204 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:55,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-02-24 01:07:55,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,402 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-02-24 01:07:55,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 179 [2022-02-24 01:07:55,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,442 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-02-24 01:07:55,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 167 [2022-02-24 01:07:55,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-02-24 01:07:55,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 153 [2022-02-24 01:07:55,902 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-02-24 01:07:55,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-02-24 01:07:55,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:07:55,919 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:07:55,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 165 [2022-02-24 01:08:01,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:01,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:01,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:01,909 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 01:08:01,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 224 treesize of output 190 [2022-02-24 01:08:01,935 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-02-24 01:08:01,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2022-02-24 01:08:01,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 01:08:01,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 132 [2022-02-24 01:08:17,894 INFO L356 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-02-24 01:08:17,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 10 [2022-02-24 01:08:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4334 backedges. 2524 proven. 870 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-02-24 01:08:18,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 01:08:19,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1212 treesize of output 1064