/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.06.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:42:50,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:42:50,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:42:50,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:42:50,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:42:50,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:42:50,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:42:50,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:42:50,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:42:50,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:42:50,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:42:50,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:42:50,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:42:50,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:42:50,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:42:50,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:42:50,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:42:50,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:42:50,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:42:50,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:42:50,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:42:50,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:42:50,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:42:50,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:42:50,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:42:50,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:42:50,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:42:50,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:42:50,629 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 00:42:50,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:42:50,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:42:50,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:42:50,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:42:50,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:42:50,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:42:50,661 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:42:50,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:42:50,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:42:50,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:42:50,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:42:50,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:42:50,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:42:50,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:42:50,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:42:50,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:42:50,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:42:50,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:42:50,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:42:50,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:42:50,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:42:50,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:42:50,665 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:42:50,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:42:50,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:42:50,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:42:50,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:42:50,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:42:50,913 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:42:50,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-02-24 00:42:50,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208bb99ac/cbdd1b7d5312460d94b1f3b30f55e3fa/FLAG1e10db5ab [2022-02-24 00:42:51,504 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:42:51,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-02-24 00:42:51,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208bb99ac/cbdd1b7d5312460d94b1f3b30f55e3fa/FLAG1e10db5ab [2022-02-24 00:42:51,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208bb99ac/cbdd1b7d5312460d94b1f3b30f55e3fa [2022-02-24 00:42:51,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:42:51,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:42:51,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:42:51,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:42:51,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:42:51,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:42:51" (1/1) ... [2022-02-24 00:42:51,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e343d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:51, skipping insertion in model container [2022-02-24 00:42:51,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:42:51" (1/1) ... [2022-02-24 00:42:52,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:42:52,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:42:52,447 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.06.i.cil-2.c[78808,78821] [2022-02-24 00:42:52,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:42:52,484 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:42:52,621 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.06.i.cil-2.c[78808,78821] [2022-02-24 00:42:52,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:42:52,650 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:42:52,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52 WrapperNode [2022-02-24 00:42:52,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:42:52,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:42:52,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:42:52,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:42:52,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:42:52,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:42:52,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:42:52,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:42:52,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (1/1) ... [2022-02-24 00:42:52,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:42:52,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:42:52,829 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 00:42:52,837 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 00:42:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:42:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:42:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:42:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:42:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:42:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:42:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:42:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:42:52,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:42:52,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:42:52,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:42:52,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:42:52,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:42:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:42:52,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:42:53,068 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:42:53,069 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:42:54,037 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:42:54,508 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:42:54,508 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:42:54,520 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:42:54,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:42:54,527 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:42:54,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:42:54 BoogieIcfgContainer [2022-02-24 00:42:54,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:42:54,530 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:42:54,530 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:42:54,531 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:42:54,534 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:42:54" (1/1) ... [2022-02-24 00:42:54,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:42:54 BasicIcfg [2022-02-24 00:42:54,622 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:42:54,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:42:54,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:42:54,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:42:54,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:42:51" (1/4) ... [2022-02-24 00:42:54,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a116768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:42:54, skipping insertion in model container [2022-02-24 00:42:54,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:42:52" (2/4) ... [2022-02-24 00:42:54,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a116768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:42:54, skipping insertion in model container [2022-02-24 00:42:54,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:42:54" (3/4) ... [2022-02-24 00:42:54,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a116768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:42:54, skipping insertion in model container [2022-02-24 00:42:54,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:42:54" (4/4) ... [2022-02-24 00:42:54,630 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-2.cqvasr [2022-02-24 00:42:54,635 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:42:54,636 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:42:54,695 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:42:54,703 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 00:42:54,703 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:42:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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 00:42:54,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-24 00:42:54,727 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:54,728 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 00:42:54,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1910801152, now seen corresponding path program 1 times [2022-02-24 00:42:54,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:54,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129348165] [2022-02-24 00:42:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:55,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:55,294 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 00:42:55,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:55,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129348165] [2022-02-24 00:42:55,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129348165] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:55,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:55,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:55,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589726641] [2022-02-24 00:42:55,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:55,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:55,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:55,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:55,336 INFO L87 Difference]: Start difference. First operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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 9.6) 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 00:42:58,895 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 00:43:00,918 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 00:43:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:01,658 INFO L93 Difference]: Finished difference Result 358 states and 608 transitions. [2022-02-24 00:43:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:01,662 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 00:43:01,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:01,670 INFO L225 Difference]: With dead ends: 358 [2022-02-24 00:43:01,670 INFO L226 Difference]: Without dead ends: 182 [2022-02-24 00:43:01,673 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 00:43:01,676 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 34 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:01,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 679 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 437 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:43:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-02-24 00:43:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 165. [2022-02-24 00:43:01,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.5875) internal successors, (254), 160 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 258 transitions. [2022-02-24 00:43:01,730 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 258 transitions. Word has length 52 [2022-02-24 00:43:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:01,730 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 258 transitions. [2022-02-24 00:43:01,731 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 00:43:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 258 transitions. [2022-02-24 00:43:01,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-24 00:43:01,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:01,739 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 00:43:01,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:43:01,740 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:01,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:01,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1943252380, now seen corresponding path program 1 times [2022-02-24 00:43:01,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:01,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458029525] [2022-02-24 00:43:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:01,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:01,969 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 00:43:01,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:01,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458029525] [2022-02-24 00:43:01,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458029525] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:01,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:01,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:01,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836186358] [2022-02-24 00:43:01,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:01,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:01,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:01,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:01,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:01,972 INFO L87 Difference]: Start difference. First operand 165 states and 258 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 00:43:03,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:05,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:07,393 WARN L534 Checker$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 00:43:09,420 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 00:43:10,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:10,219 INFO L93 Difference]: Finished difference Result 432 states and 682 transitions. [2022-02-24 00:43:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:10,220 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 00:43:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:10,222 INFO L225 Difference]: With dead ends: 432 [2022-02-24 00:43:10,223 INFO L226 Difference]: Without dead ends: 293 [2022-02-24 00:43:10,224 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 00:43:10,225 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 165 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:10,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 742 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 665 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:43:10,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-02-24 00:43:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 181. [2022-02-24 00:43:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5852272727272727) internal successors, (279), 176 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 283 transitions. [2022-02-24 00:43:10,242 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 283 transitions. Word has length 65 [2022-02-24 00:43:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:10,242 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 283 transitions. [2022-02-24 00:43:10,242 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 00:43:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2022-02-24 00:43:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:43:10,244 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:10,244 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 00:43:10,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:43:10,245 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:10,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:10,245 INFO L85 PathProgramCache]: Analyzing trace with hash -51353605, now seen corresponding path program 1 times [2022-02-24 00:43:10,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:10,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260141698] [2022-02-24 00:43:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:10,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:10,411 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 00:43:10,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:10,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260141698] [2022-02-24 00:43:10,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260141698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:10,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:10,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:10,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296144185] [2022-02-24 00:43:10,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:10,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:10,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:10,416 INFO L87 Difference]: Start difference. First operand 181 states and 283 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 00:43:12,803 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 00:43:14,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:16,855 WARN L534 Checker$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 00:43:17,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:17,288 INFO L93 Difference]: Finished difference Result 352 states and 549 transitions. [2022-02-24 00:43:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:17,289 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 00:43:17,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:17,291 INFO L225 Difference]: With dead ends: 352 [2022-02-24 00:43:17,291 INFO L226 Difference]: Without dead ends: 197 [2022-02-24 00:43:17,292 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 00:43:17,293 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 28 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:17,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 557 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:43:17,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-02-24 00:43:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-02-24 00:43:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5795454545454546) internal successors, (278), 176 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 282 transitions. [2022-02-24 00:43:17,303 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 282 transitions. Word has length 66 [2022-02-24 00:43:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:17,303 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 282 transitions. [2022-02-24 00:43:17,304 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 00:43:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 282 transitions. [2022-02-24 00:43:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:43:17,305 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:17,305 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 00:43:17,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:43:17,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:17,306 INFO L85 PathProgramCache]: Analyzing trace with hash -299653093, now seen corresponding path program 1 times [2022-02-24 00:43:17,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:17,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898625254] [2022-02-24 00:43:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:17,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:17,441 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 00:43:17,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:17,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898625254] [2022-02-24 00:43:17,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898625254] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:17,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:17,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:17,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053804010] [2022-02-24 00:43:17,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:17,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:17,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:17,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:17,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:17,443 INFO L87 Difference]: Start difference. First operand 181 states and 282 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 00:43:19,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:21,464 WARN L534 Checker$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 00:43:23,028 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 00:43:23,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:23,891 INFO L93 Difference]: Finished difference Result 352 states and 548 transitions. [2022-02-24 00:43:23,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:23,892 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 00:43:23,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:23,893 INFO L225 Difference]: With dead ends: 352 [2022-02-24 00:43:23,893 INFO L226 Difference]: Without dead ends: 197 [2022-02-24 00:43:23,894 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 00:43:23,895 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 26 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:23,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 557 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:43:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-02-24 00:43:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-02-24 00:43:23,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5738636363636365) internal successors, (277), 176 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:23,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 281 transitions. [2022-02-24 00:43:23,903 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 281 transitions. Word has length 66 [2022-02-24 00:43:23,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:23,904 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 281 transitions. [2022-02-24 00:43:23,904 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 00:43:23,904 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 281 transitions. [2022-02-24 00:43:23,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:43:23,905 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:23,905 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 00:43:23,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:43:23,905 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:23,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:23,906 INFO L85 PathProgramCache]: Analyzing trace with hash -296194534, now seen corresponding path program 1 times [2022-02-24 00:43:23,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:23,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095274065] [2022-02-24 00:43:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:24,040 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 00:43:24,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:24,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095274065] [2022-02-24 00:43:24,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095274065] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:24,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:24,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:24,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912007709] [2022-02-24 00:43:24,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:24,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:24,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:24,043 INFO L87 Difference]: Start difference. First operand 181 states and 281 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 00:43:25,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:27,501 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 00:43:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:29,406 INFO L93 Difference]: Finished difference Result 464 states and 731 transitions. [2022-02-24 00:43:29,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:29,406 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 00:43:29,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:29,408 INFO L225 Difference]: With dead ends: 464 [2022-02-24 00:43:29,408 INFO L226 Difference]: Without dead ends: 309 [2022-02-24 00:43:29,408 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 00:43:29,409 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 164 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:29,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 414 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:43:29,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-24 00:43:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 198. [2022-02-24 00:43:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.5751295336787565) internal successors, (304), 193 states have internal predecessors, (304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 308 transitions. [2022-02-24 00:43:29,426 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 308 transitions. Word has length 66 [2022-02-24 00:43:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:29,426 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 308 transitions. [2022-02-24 00:43:29,427 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 00:43:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 308 transitions. [2022-02-24 00:43:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:43:29,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:29,428 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 00:43:29,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:43:29,428 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash -71604934, now seen corresponding path program 1 times [2022-02-24 00:43:29,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:29,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380703528] [2022-02-24 00:43:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:29,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,577 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 00:43:29,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:29,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380703528] [2022-02-24 00:43:29,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380703528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:29,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:29,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:29,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708819644] [2022-02-24 00:43:29,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:29,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:29,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:29,579 INFO L87 Difference]: Start difference. First operand 198 states and 308 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 00:43:31,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:33,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:35,400 WARN L534 Checker$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 00:43:37,431 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 00:43:37,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:37,864 INFO L93 Difference]: Finished difference Result 383 states and 599 transitions. [2022-02-24 00:43:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:37,865 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 00:43:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:37,866 INFO L225 Difference]: With dead ends: 383 [2022-02-24 00:43:37,866 INFO L226 Difference]: Without dead ends: 211 [2022-02-24 00:43:37,867 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 00:43:37,867 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 18 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:37,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 563 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 00:43:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-02-24 00:43:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2022-02-24 00:43:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.5699481865284974) internal successors, (303), 193 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:37,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 307 transitions. [2022-02-24 00:43:37,874 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 307 transitions. Word has length 66 [2022-02-24 00:43:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:37,875 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 307 transitions. [2022-02-24 00:43:37,875 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 00:43:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 307 transitions. [2022-02-24 00:43:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:43:37,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:37,876 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 00:43:37,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:43:37,876 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1629485595, now seen corresponding path program 1 times [2022-02-24 00:43:37,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:37,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821693683] [2022-02-24 00:43:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:37,986 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 00:43:37,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:37,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821693683] [2022-02-24 00:43:37,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821693683] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:37,987 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:37,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:37,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120381815] [2022-02-24 00:43:37,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:37,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:37,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:37,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:37,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:37,988 INFO L87 Difference]: Start difference. First operand 198 states and 307 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 00:43:39,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:41,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:43,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:44,251 INFO L93 Difference]: Finished difference Result 383 states and 598 transitions. [2022-02-24 00:43:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:44,252 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 00:43:44,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:44,253 INFO L225 Difference]: With dead ends: 383 [2022-02-24 00:43:44,253 INFO L226 Difference]: Without dead ends: 211 [2022-02-24 00:43:44,254 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 00:43:44,254 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 22 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:44,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 563 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:43:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-02-24 00:43:44,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2022-02-24 00:43:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.5647668393782384) internal successors, (302), 193 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:44,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 306 transitions. [2022-02-24 00:43:44,261 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 306 transitions. Word has length 67 [2022-02-24 00:43:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:44,261 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 306 transitions. [2022-02-24 00:43:44,261 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 00:43:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 306 transitions. [2022-02-24 00:43:44,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:43:44,262 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:44,262 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 00:43:44,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:43:44,262 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:44,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:44,263 INFO L85 PathProgramCache]: Analyzing trace with hash 64342367, now seen corresponding path program 1 times [2022-02-24 00:43:44,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:44,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669604494] [2022-02-24 00:43:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:44,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:44,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:44,414 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 00:43:44,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:44,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669604494] [2022-02-24 00:43:44,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669604494] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:44,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:44,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:44,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746891322] [2022-02-24 00:43:44,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:44,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:44,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:44,416 INFO L87 Difference]: Start difference. First operand 198 states and 306 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 00:43:47,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:48,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:49,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:49,654 INFO L93 Difference]: Finished difference Result 481 states and 755 transitions. [2022-02-24 00:43:49,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:49,655 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 00:43:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:49,657 INFO L225 Difference]: With dead ends: 481 [2022-02-24 00:43:49,657 INFO L226 Difference]: Without dead ends: 309 [2022-02-24 00:43:49,657 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 00:43:49,658 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 166 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:49,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 414 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 00:43:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-24 00:43:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 198. [2022-02-24 00:43:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.549222797927461) internal successors, (299), 193 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:49,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 303 transitions. [2022-02-24 00:43:49,665 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 303 transitions. Word has length 68 [2022-02-24 00:43:49,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:49,665 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 303 transitions. [2022-02-24 00:43:49,666 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 00:43:49,666 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 303 transitions. [2022-02-24 00:43:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:43:49,666 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:49,667 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 00:43:49,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:43:49,667 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:49,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:49,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1010123560, now seen corresponding path program 1 times [2022-02-24 00:43:49,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:49,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457935101] [2022-02-24 00:43:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:49,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:49,781 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 00:43:49,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:49,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457935101] [2022-02-24 00:43:49,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457935101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:49,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:49,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:49,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292669185] [2022-02-24 00:43:49,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:49,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:49,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:49,782 INFO L87 Difference]: Start difference. First operand 198 states and 303 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 00:43:52,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:55,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:55,537 INFO L93 Difference]: Finished difference Result 373 states and 579 transitions. [2022-02-24 00:43:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:55,538 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 00:43:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:55,539 INFO L225 Difference]: With dead ends: 373 [2022-02-24 00:43:55,539 INFO L226 Difference]: Without dead ends: 201 [2022-02-24 00:43:55,540 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 00:43:55,541 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 11 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:55,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 577 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 00:43:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-02-24 00:43:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2022-02-24 00:43:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.544041450777202) internal successors, (298), 193 states have internal predecessors, (298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 302 transitions. [2022-02-24 00:43:55,547 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 302 transitions. Word has length 69 [2022-02-24 00:43:55,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:55,547 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 302 transitions. [2022-02-24 00:43:55,548 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 00:43:55,548 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 302 transitions. [2022-02-24 00:43:55,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:43:55,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:55,548 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 00:43:55,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:43:55,549 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:55,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:55,549 INFO L85 PathProgramCache]: Analyzing trace with hash 656722902, now seen corresponding path program 1 times [2022-02-24 00:43:55,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:55,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936417616] [2022-02-24 00:43:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:55,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:55,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:55,661 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 00:43:55,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:55,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936417616] [2022-02-24 00:43:55,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936417616] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:55,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:55,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:55,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769169164] [2022-02-24 00:43:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:55,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:55,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:55,664 INFO L87 Difference]: Start difference. First operand 198 states and 302 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 00:43:56,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:58,964 WARN L534 Checker$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 00:44:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:01,000 INFO L93 Difference]: Finished difference Result 499 states and 776 transitions. [2022-02-24 00:44:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:01,001 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 00:44:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:01,003 INFO L225 Difference]: With dead ends: 499 [2022-02-24 00:44:01,003 INFO L226 Difference]: Without dead ends: 327 [2022-02-24 00:44:01,016 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 00:44:01,016 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 141 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:01,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 416 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:44:01,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-02-24 00:44:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 238. [2022-02-24 00:44:01,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.5793991416309012) internal successors, (368), 233 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 372 transitions. [2022-02-24 00:44:01,029 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 372 transitions. Word has length 69 [2022-02-24 00:44:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:01,029 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 372 transitions. [2022-02-24 00:44:01,029 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 00:44:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 372 transitions. [2022-02-24 00:44:01,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-24 00:44:01,030 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:01,030 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, 1] [2022-02-24 00:44:01,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:44:01,031 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash -614571223, now seen corresponding path program 1 times [2022-02-24 00:44:01,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:01,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305958197] [2022-02-24 00:44:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:01,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:01,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:01,189 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 00:44:01,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:01,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305958197] [2022-02-24 00:44:01,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305958197] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:01,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:01,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:01,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416189638] [2022-02-24 00:44:01,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:01,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:01,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:01,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:01,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:01,191 INFO L87 Difference]: Start difference. First operand 238 states and 372 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:02,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:04,723 WARN L534 Checker$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 00:44:06,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:07,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:07,403 INFO L93 Difference]: Finished difference Result 561 states and 889 transitions. [2022-02-24 00:44:07,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:07,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-02-24 00:44:07,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:07,406 INFO L225 Difference]: With dead ends: 561 [2022-02-24 00:44:07,406 INFO L226 Difference]: Without dead ends: 349 [2022-02-24 00:44:07,406 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 00:44:07,407 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 140 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:07,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 446 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:44:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-02-24 00:44:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 261. [2022-02-24 00:44:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.61328125) internal successors, (413), 256 states have internal predecessors, (413), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 417 transitions. [2022-02-24 00:44:07,414 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 417 transitions. Word has length 70 [2022-02-24 00:44:07,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:07,415 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 417 transitions. [2022-02-24 00:44:07,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 417 transitions. [2022-02-24 00:44:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-02-24 00:44:07,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:07,416 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:07,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:44:07,417 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:07,417 INFO L85 PathProgramCache]: Analyzing trace with hash 481022964, now seen corresponding path program 1 times [2022-02-24 00:44:07,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:07,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610954859] [2022-02-24 00:44:07,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:07,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-24 00:44:07,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:07,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610954859] [2022-02-24 00:44:07,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610954859] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:07,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:07,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:07,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363473263] [2022-02-24 00:44:07,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:07,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:07,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:07,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:07,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:07,527 INFO L87 Difference]: Start difference. First operand 261 states and 417 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:09,766 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 00:44:10,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:11,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:12,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:12,290 INFO L93 Difference]: Finished difference Result 537 states and 865 transitions. [2022-02-24 00:44:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:12,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-02-24 00:44:12,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:12,292 INFO L225 Difference]: With dead ends: 537 [2022-02-24 00:44:12,292 INFO L226 Difference]: Without dead ends: 302 [2022-02-24 00:44:12,293 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 00:44:12,293 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 31 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:12,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 579 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:44:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-02-24 00:44:12,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-02-24 00:44:12,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.6115107913669064) internal successors, (448), 278 states have internal predecessors, (448), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:12,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 452 transitions. [2022-02-24 00:44:12,301 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 452 transitions. Word has length 98 [2022-02-24 00:44:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:12,301 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 452 transitions. [2022-02-24 00:44:12,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 452 transitions. [2022-02-24 00:44:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-24 00:44:12,303 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:12,303 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:12,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:44:12,303 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:12,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:12,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1035119783, now seen corresponding path program 1 times [2022-02-24 00:44:12,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:12,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270621614] [2022-02-24 00:44:12,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:12,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:12,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-24 00:44:12,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:12,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270621614] [2022-02-24 00:44:12,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270621614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:12,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:12,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:12,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114790493] [2022-02-24 00:44:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:12,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:12,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:12,435 INFO L87 Difference]: Start difference. First operand 283 states and 452 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:14,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:16,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:17,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:18,246 WARN L534 Checker$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 00:44:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:18,652 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-02-24 00:44:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:18,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-24 00:44:18,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:18,654 INFO L225 Difference]: With dead ends: 553 [2022-02-24 00:44:18,654 INFO L226 Difference]: Without dead ends: 296 [2022-02-24 00:44:18,655 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 00:44:18,656 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 21 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:18,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 644 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 00:44:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-02-24 00:44:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 283. [2022-02-24 00:44:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.6079136690647482) internal successors, (447), 278 states have internal predecessors, (447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 451 transitions. [2022-02-24 00:44:18,664 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 451 transitions. Word has length 112 [2022-02-24 00:44:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:18,664 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 451 transitions. [2022-02-24 00:44:18,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 451 transitions. [2022-02-24 00:44:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-24 00:44:18,665 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:18,665 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:18,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:44:18,666 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:18,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:18,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1075989894, now seen corresponding path program 1 times [2022-02-24 00:44:18,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:18,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338944234] [2022-02-24 00:44:18,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:18,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:18,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:44:18,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:18,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338944234] [2022-02-24 00:44:18,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338944234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:18,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:18,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:18,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991332444] [2022-02-24 00:44:18,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:18,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:18,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:18,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:18,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:18,779 INFO L87 Difference]: Start difference. First operand 283 states and 451 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 00:44:20,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:22,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:24,741 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 00:44:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:25,149 INFO L93 Difference]: Finished difference Result 558 states and 896 transitions. [2022-02-24 00:44:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:25,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-02-24 00:44:25,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:25,151 INFO L225 Difference]: With dead ends: 558 [2022-02-24 00:44:25,151 INFO L226 Difference]: Without dead ends: 301 [2022-02-24 00:44:25,151 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 00:44:25,152 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 34 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:25,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 581 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-24 00:44:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-02-24 00:44:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 283. [2022-02-24 00:44:25,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.60431654676259) internal successors, (446), 278 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 450 transitions. [2022-02-24 00:44:25,159 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 450 transitions. Word has length 112 [2022-02-24 00:44:25,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:25,159 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 450 transitions. [2022-02-24 00:44:25,160 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 00:44:25,160 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 450 transitions. [2022-02-24 00:44:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-24 00:44:25,161 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:25,161 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:25,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:44:25,161 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:25,161 INFO L85 PathProgramCache]: Analyzing trace with hash 725734498, now seen corresponding path program 1 times [2022-02-24 00:44:25,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:25,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636634748] [2022-02-24 00:44:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:25,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-24 00:44:25,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:25,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636634748] [2022-02-24 00:44:25,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636634748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:25,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:25,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:44:25,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410108812] [2022-02-24 00:44:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:25,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:44:25,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:44:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:44:25,289 INFO L87 Difference]: Start difference. First operand 283 states and 450 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 00:44:26,567 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 00:44:28,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:30,612 WARN L534 Checker$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 00:44:32,061 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 00:44:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:32,454 INFO L93 Difference]: Finished difference Result 549 states and 882 transitions. [2022-02-24 00:44:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 00:44:32,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 113 [2022-02-24 00:44:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:32,456 INFO L225 Difference]: With dead ends: 549 [2022-02-24 00:44:32,456 INFO L226 Difference]: Without dead ends: 292 [2022-02-24 00:44:32,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:44:32,457 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 3 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:32,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 729 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 458 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-02-24 00:44:32,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-02-24 00:44:32,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-02-24 00:44:32,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5923344947735192) internal successors, (457), 287 states have internal predecessors, (457), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 461 transitions. [2022-02-24 00:44:32,465 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 461 transitions. Word has length 113 [2022-02-24 00:44:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:32,465 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 461 transitions. [2022-02-24 00:44:32,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 00:44:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 461 transitions. [2022-02-24 00:44:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-24 00:44:32,467 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:32,467 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:32,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:44:32,467 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:32,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:32,468 INFO L85 PathProgramCache]: Analyzing trace with hash 274603138, now seen corresponding path program 1 times [2022-02-24 00:44:32,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:32,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173790799] [2022-02-24 00:44:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:32,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:32,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:44:32,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:32,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173790799] [2022-02-24 00:44:32,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173790799] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:32,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:32,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:32,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071167073] [2022-02-24 00:44:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:32,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:32,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:32,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:32,580 INFO L87 Difference]: Start difference. First operand 292 states and 461 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:34,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:37,240 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 00:44:37,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:37,621 INFO L93 Difference]: Finished difference Result 585 states and 927 transitions. [2022-02-24 00:44:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:37,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-02-24 00:44:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:37,623 INFO L225 Difference]: With dead ends: 585 [2022-02-24 00:44:37,623 INFO L226 Difference]: Without dead ends: 319 [2022-02-24 00:44:37,623 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 00:44:37,624 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 39 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:37,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 581 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-24 00:44:37,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-02-24 00:44:37,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 292. [2022-02-24 00:44:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.588850174216028) internal successors, (456), 287 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 460 transitions. [2022-02-24 00:44:37,631 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 460 transitions. Word has length 113 [2022-02-24 00:44:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:37,632 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 460 transitions. [2022-02-24 00:44:37,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 460 transitions. [2022-02-24 00:44:37,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-24 00:44:37,633 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:37,633 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:37,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:44:37,633 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash 246806496, now seen corresponding path program 1 times [2022-02-24 00:44:37,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:37,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877030908] [2022-02-24 00:44:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:44:37,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:37,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877030908] [2022-02-24 00:44:37,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877030908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:37,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:37,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:37,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131087413] [2022-02-24 00:44:37,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:37,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:37,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:37,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:37,747 INFO L87 Difference]: Start difference. First operand 292 states and 460 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:39,693 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 00:44:41,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:43,358 WARN L534 Checker$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 00:44:45,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:45,625 INFO L93 Difference]: Finished difference Result 655 states and 1030 transitions. [2022-02-24 00:44:45,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:45,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-24 00:44:45,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:45,626 INFO L225 Difference]: With dead ends: 655 [2022-02-24 00:44:45,626 INFO L226 Difference]: Without dead ends: 389 [2022-02-24 00:44:45,627 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 00:44:45,628 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 166 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:45,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 446 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-02-24 00:44:45,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-02-24 00:44:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 292. [2022-02-24 00:44:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5749128919860627) internal successors, (452), 287 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 456 transitions. [2022-02-24 00:44:45,636 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 456 transitions. Word has length 114 [2022-02-24 00:44:45,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:45,636 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 456 transitions. [2022-02-24 00:44:45,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 456 transitions. [2022-02-24 00:44:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-24 00:44:45,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:45,637 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:45,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:44:45,638 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1293142883, now seen corresponding path program 1 times [2022-02-24 00:44:45,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:45,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783610875] [2022-02-24 00:44:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:45,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-24 00:44:45,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:45,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783610875] [2022-02-24 00:44:45,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783610875] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:45,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:45,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:45,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069206554] [2022-02-24 00:44:45,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:45,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:45,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:45,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:45,749 INFO L87 Difference]: Start difference. First operand 292 states and 456 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:47,221 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 00:44:50,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:50,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:50,713 INFO L93 Difference]: Finished difference Result 575 states and 904 transitions. [2022-02-24 00:44:50,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:50,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-02-24 00:44:50,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:50,715 INFO L225 Difference]: With dead ends: 575 [2022-02-24 00:44:50,715 INFO L226 Difference]: Without dead ends: 309 [2022-02-24 00:44:50,715 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 00:44:50,716 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:50,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:44:50,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-02-24 00:44:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 292. [2022-02-24 00:44:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5714285714285714) internal successors, (451), 287 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 455 transitions. [2022-02-24 00:44:50,723 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 455 transitions. Word has length 116 [2022-02-24 00:44:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:50,723 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 455 transitions. [2022-02-24 00:44:50,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:50,723 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 455 transitions. [2022-02-24 00:44:50,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-02-24 00:44:50,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:50,725 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, 1] [2022-02-24 00:44:50,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:44:50,725 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:50,725 INFO L85 PathProgramCache]: Analyzing trace with hash -242661549, now seen corresponding path program 1 times [2022-02-24 00:44:50,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:50,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825800481] [2022-02-24 00:44:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:50,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:50,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:50,875 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 00:44:50,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:50,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825800481] [2022-02-24 00:44:50,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825800481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:50,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:50,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:50,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686554556] [2022-02-24 00:44:50,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:50,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:50,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:50,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:50,878 INFO L87 Difference]: Start difference. First operand 292 states and 455 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:52,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:54,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:56,965 WARN L534 Checker$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 00:44:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:57,562 INFO L93 Difference]: Finished difference Result 668 states and 1047 transitions. [2022-02-24 00:44:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:57,562 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 120 [2022-02-24 00:44:57,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:57,564 INFO L225 Difference]: With dead ends: 668 [2022-02-24 00:44:57,564 INFO L226 Difference]: Without dead ends: 402 [2022-02-24 00:44:57,565 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 00:44:57,566 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 100 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:57,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 575 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 550 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-02-24 00:44:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-02-24 00:44:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 326. [2022-02-24 00:44:57,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.5794392523364487) internal successors, (507), 321 states have internal predecessors, (507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 511 transitions. [2022-02-24 00:44:57,574 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 511 transitions. Word has length 120 [2022-02-24 00:44:57,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:57,574 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 511 transitions. [2022-02-24 00:44:57,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:57,575 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 511 transitions. [2022-02-24 00:44:57,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-02-24 00:44:57,576 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:57,576 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, 1] [2022-02-24 00:44:57,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:44:57,576 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:57,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:57,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1943272498, now seen corresponding path program 1 times [2022-02-24 00:44:57,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:57,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602440351] [2022-02-24 00:44:57,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:57,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-24 00:44:57,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:57,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602440351] [2022-02-24 00:44:57,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602440351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:57,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:57,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:57,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415220377] [2022-02-24 00:44:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:57,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:57,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:57,729 INFO L87 Difference]: Start difference. First operand 326 states and 511 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:58,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:00,981 WARN L534 Checker$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 00:45:03,689 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 00:45:04,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:04,128 INFO L93 Difference]: Finished difference Result 683 states and 1074 transitions. [2022-02-24 00:45:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:04,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-02-24 00:45:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:04,129 INFO L225 Difference]: With dead ends: 683 [2022-02-24 00:45:04,129 INFO L226 Difference]: Without dead ends: 383 [2022-02-24 00:45:04,130 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 00:45:04,130 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 38 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:04,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 679 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 00:45:04,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-02-24 00:45:04,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 350. [2022-02-24 00:45:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5797101449275361) internal successors, (545), 345 states have internal predecessors, (545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:04,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 549 transitions. [2022-02-24 00:45:04,139 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 549 transitions. Word has length 120 [2022-02-24 00:45:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:04,139 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 549 transitions. [2022-02-24 00:45:04,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 549 transitions. [2022-02-24 00:45:04,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 00:45:04,140 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:04,141 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:04,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:45:04,141 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:04,141 INFO L85 PathProgramCache]: Analyzing trace with hash -415266249, now seen corresponding path program 1 times [2022-02-24 00:45:04,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:04,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593300184] [2022-02-24 00:45:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:04,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-24 00:45:04,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:04,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593300184] [2022-02-24 00:45:04,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593300184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:04,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:04,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:04,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792394998] [2022-02-24 00:45:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:04,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:04,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:04,270 INFO L87 Difference]: Start difference. First operand 350 states and 549 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:06,425 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 00:45:08,991 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 00:45:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:09,469 INFO L93 Difference]: Finished difference Result 761 states and 1196 transitions. [2022-02-24 00:45:09,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:09,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-24 00:45:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:09,471 INFO L225 Difference]: With dead ends: 761 [2022-02-24 00:45:09,475 INFO L226 Difference]: Without dead ends: 437 [2022-02-24 00:45:09,476 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 00:45:09,476 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 167 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:09,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 416 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 00:45:09,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-02-24 00:45:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 350. [2022-02-24 00:45:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5623188405797102) internal successors, (539), 345 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 543 transitions. [2022-02-24 00:45:09,488 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 543 transitions. Word has length 125 [2022-02-24 00:45:09,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:09,488 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 543 transitions. [2022-02-24 00:45:09,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:09,489 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 543 transitions. [2022-02-24 00:45:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-24 00:45:09,490 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:09,490 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, 1, 1] [2022-02-24 00:45:09,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:45:09,490 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:09,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:09,491 INFO L85 PathProgramCache]: Analyzing trace with hash 866150237, now seen corresponding path program 1 times [2022-02-24 00:45:09,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:09,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813322090] [2022-02-24 00:45:09,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:09,659 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 00:45:09,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:09,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813322090] [2022-02-24 00:45:09,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813322090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:09,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:09,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:09,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846840228] [2022-02-24 00:45:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:09,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:09,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:09,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:09,661 INFO L87 Difference]: Start difference. First operand 350 states and 543 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:11,674 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 00:45:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:12,192 INFO L93 Difference]: Finished difference Result 801 states and 1252 transitions. [2022-02-24 00:45:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:12,192 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 126 [2022-02-24 00:45:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:12,194 INFO L225 Difference]: With dead ends: 801 [2022-02-24 00:45:12,194 INFO L226 Difference]: Without dead ends: 477 [2022-02-24 00:45:12,195 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 00:45:12,196 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 140 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:12,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 416 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:45:12,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-02-24 00:45:12,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 387. [2022-02-24 00:45:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5732984293193717) internal successors, (601), 382 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 605 transitions. [2022-02-24 00:45:12,205 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 605 transitions. Word has length 126 [2022-02-24 00:45:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:12,205 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 605 transitions. [2022-02-24 00:45:12,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 605 transitions. [2022-02-24 00:45:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-24 00:45:12,207 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:12,207 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, 1, 1] [2022-02-24 00:45:12,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:45:12,207 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:12,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1899710259, now seen corresponding path program 1 times [2022-02-24 00:45:12,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:12,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116000857] [2022-02-24 00:45:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:12,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:12,334 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 00:45:12,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:12,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116000857] [2022-02-24 00:45:12,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116000857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:12,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:12,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:12,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607054231] [2022-02-24 00:45:12,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:12,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:12,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:12,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:12,336 INFO L87 Difference]: Start difference. First operand 387 states and 605 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,029 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 00:45:15,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:15,562 INFO L93 Difference]: Finished difference Result 811 states and 1273 transitions. [2022-02-24 00:45:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:15,563 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 127 [2022-02-24 00:45:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:15,565 INFO L225 Difference]: With dead ends: 811 [2022-02-24 00:45:15,565 INFO L226 Difference]: Without dead ends: 450 [2022-02-24 00:45:15,565 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 00:45:15,566 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 88 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:15,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 545 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-24 00:45:15,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-24 00:45:15,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 393. [2022-02-24 00:45:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.574742268041237) internal successors, (611), 388 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 615 transitions. [2022-02-24 00:45:15,575 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 615 transitions. Word has length 127 [2022-02-24 00:45:15,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:15,575 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 615 transitions. [2022-02-24 00:45:15,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:15,575 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 615 transitions. [2022-02-24 00:45:15,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:45:15,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:15,577 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:15,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:45:15,577 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:15,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash 924996505, now seen corresponding path program 1 times [2022-02-24 00:45:15,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:15,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414351184] [2022-02-24 00:45:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:15,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:15,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:15,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414351184] [2022-02-24 00:45:15,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414351184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:15,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:15,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:15,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953381631] [2022-02-24 00:45:15,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:15,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:15,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:15,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:15,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:15,691 INFO L87 Difference]: Start difference. First operand 393 states and 615 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:19,074 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 00:45:21,097 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 00:45:21,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:21,589 INFO L93 Difference]: Finished difference Result 846 states and 1327 transitions. [2022-02-24 00:45:21,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:21,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-24 00:45:21,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:21,591 INFO L225 Difference]: With dead ends: 846 [2022-02-24 00:45:21,591 INFO L226 Difference]: Without dead ends: 479 [2022-02-24 00:45:21,592 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 00:45:21,592 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 159 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:21,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 418 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 00:45:21,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-02-24 00:45:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 393. [2022-02-24 00:45:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5618556701030928) internal successors, (606), 388 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 610 transitions. [2022-02-24 00:45:21,602 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 610 transitions. Word has length 134 [2022-02-24 00:45:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:21,602 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 610 transitions. [2022-02-24 00:45:21,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:21,602 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 610 transitions. [2022-02-24 00:45:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 00:45:21,604 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:21,604 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 00:45:21,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:45:21,604 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:21,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:21,604 INFO L85 PathProgramCache]: Analyzing trace with hash 182948989, now seen corresponding path program 1 times [2022-02-24 00:45:21,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:21,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134186551] [2022-02-24 00:45:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:21,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:21,752 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 00:45:21,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:21,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134186551] [2022-02-24 00:45:21,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134186551] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:21,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:21,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:21,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623242335] [2022-02-24 00:45:21,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:21,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:21,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:21,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:21,754 INFO L87 Difference]: Start difference. First operand 393 states and 610 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 00:45:23,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:25,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:27,500 WARN L534 Checker$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 00:45:29,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:30,019 INFO L93 Difference]: Finished difference Result 886 states and 1383 transitions. [2022-02-24 00:45:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:30,019 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 00:45:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:30,021 INFO L225 Difference]: With dead ends: 886 [2022-02-24 00:45:30,021 INFO L226 Difference]: Without dead ends: 519 [2022-02-24 00:45:30,022 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 00:45:30,022 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 132 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 58 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:30,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 451 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 511 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:45:30,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-02-24 00:45:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 436. [2022-02-24 00:45:30,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.5707656612529002) internal successors, (677), 431 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 681 transitions. [2022-02-24 00:45:30,032 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 681 transitions. Word has length 134 [2022-02-24 00:45:30,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:30,032 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 681 transitions. [2022-02-24 00:45:30,032 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 00:45:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 681 transitions. [2022-02-24 00:45:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-02-24 00:45:30,033 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:30,034 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:30,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:45:30,034 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:30,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:30,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2119327933, now seen corresponding path program 1 times [2022-02-24 00:45:30,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:30,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342441030] [2022-02-24 00:45:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:30,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:30,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:30,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342441030] [2022-02-24 00:45:30,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342441030] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:30,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:30,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:30,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347721741] [2022-02-24 00:45:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:30,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:30,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:30,155 INFO L87 Difference]: Start difference. First operand 436 states and 681 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:31,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:33,304 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 00:45:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:35,060 INFO L93 Difference]: Finished difference Result 932 states and 1459 transitions. [2022-02-24 00:45:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:35,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-02-24 00:45:35,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:35,062 INFO L225 Difference]: With dead ends: 932 [2022-02-24 00:45:35,062 INFO L226 Difference]: Without dead ends: 522 [2022-02-24 00:45:35,062 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 00:45:35,063 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 164 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:35,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 418 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 00:45:35,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-02-24 00:45:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 436. [2022-02-24 00:45:35,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.554524361948956) internal successors, (670), 431 states have internal predecessors, (670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 674 transitions. [2022-02-24 00:45:35,072 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 674 transitions. Word has length 135 [2022-02-24 00:45:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:35,072 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 674 transitions. [2022-02-24 00:45:35,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 674 transitions. [2022-02-24 00:45:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-02-24 00:45:35,074 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:35,074 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, 1] [2022-02-24 00:45:35,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:45:35,074 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:35,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash 695646319, now seen corresponding path program 1 times [2022-02-24 00:45:35,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:35,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097650496] [2022-02-24 00:45:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:35,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:35,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:35,197 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 00:45:35,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:35,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097650496] [2022-02-24 00:45:35,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097650496] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:35,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:35,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:35,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133758844] [2022-02-24 00:45:35,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:35,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:35,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:35,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:35,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:35,198 INFO L87 Difference]: Start difference. First operand 436 states and 674 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:37,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:37,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:37,672 INFO L93 Difference]: Finished difference Result 932 states and 1445 transitions. [2022-02-24 00:45:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:37,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-02-24 00:45:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:37,675 INFO L225 Difference]: With dead ends: 932 [2022-02-24 00:45:37,675 INFO L226 Difference]: Without dead ends: 520 [2022-02-24 00:45:37,676 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 00:45:37,676 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 132 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:37,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 450 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:45:37,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-24 00:45:37,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 438. [2022-02-24 00:45:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5542725173210161) internal successors, (673), 433 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 677 transitions. [2022-02-24 00:45:37,686 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 677 transitions. Word has length 135 [2022-02-24 00:45:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:37,686 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 677 transitions. [2022-02-24 00:45:37,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 677 transitions. [2022-02-24 00:45:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-02-24 00:45:37,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:37,688 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:37,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:45:37,688 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:37,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:37,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1624556802, now seen corresponding path program 1 times [2022-02-24 00:45:37,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:37,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073306289] [2022-02-24 00:45:37,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:37,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:37,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:37,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073306289] [2022-02-24 00:45:37,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073306289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:37,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:37,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:37,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755121023] [2022-02-24 00:45:37,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:37,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:37,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:37,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:37,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:37,820 INFO L87 Difference]: Start difference. First operand 438 states and 677 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:39,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:42,022 WARN L534 Checker$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 00:45:44,049 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 00:45:44,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:44,484 INFO L93 Difference]: Finished difference Result 888 states and 1378 transitions. [2022-02-24 00:45:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:44,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-02-24 00:45:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:44,486 INFO L225 Difference]: With dead ends: 888 [2022-02-24 00:45:44,486 INFO L226 Difference]: Without dead ends: 476 [2022-02-24 00:45:44,487 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 00:45:44,487 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 88 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:44,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 565 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:45:44,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-02-24 00:45:44,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 438. [2022-02-24 00:45:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5519630484988454) internal successors, (672), 433 states have internal predecessors, (672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 676 transitions. [2022-02-24 00:45:44,496 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 676 transitions. Word has length 138 [2022-02-24 00:45:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:44,497 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 676 transitions. [2022-02-24 00:45:44,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 676 transitions. [2022-02-24 00:45:44,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-02-24 00:45:44,498 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:44,498 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:44,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:45:44,498 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:44,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1731878879, now seen corresponding path program 1 times [2022-02-24 00:45:44,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:44,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856936841] [2022-02-24 00:45:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:44,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:44,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:44,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856936841] [2022-02-24 00:45:44,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856936841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:44,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:44,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:44,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811672994] [2022-02-24 00:45:44,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:44,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:44,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:44,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:44,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:44,619 INFO L87 Difference]: Start difference. First operand 438 states and 676 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:46,107 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 00:45:48,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:50,155 WARN L534 Checker$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 00:45:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:51,204 INFO L93 Difference]: Finished difference Result 862 states and 1339 transitions. [2022-02-24 00:45:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-02-24 00:45:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:51,206 INFO L225 Difference]: With dead ends: 862 [2022-02-24 00:45:51,206 INFO L226 Difference]: Without dead ends: 450 [2022-02-24 00:45:51,206 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 00:45:51,207 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 36 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:51,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 661 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:45:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-24 00:45:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 438. [2022-02-24 00:45:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5496535796766744) internal successors, (671), 433 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 00:45:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 675 transitions. [2022-02-24 00:45:51,216 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 675 transitions. Word has length 138 [2022-02-24 00:45:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:51,216 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 675 transitions. [2022-02-24 00:45:51,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 675 transitions. [2022-02-24 00:45:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-02-24 00:45:51,218 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:51,218 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:51,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:45:51,218 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:51,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1879626385, now seen corresponding path program 1 times [2022-02-24 00:45:51,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:51,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291073193] [2022-02-24 00:45:51,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:51,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:51,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:51,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291073193] [2022-02-24 00:45:51,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291073193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:51,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:51,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:51,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585543011] [2022-02-24 00:45:51,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:51,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:51,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:51,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:51,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:51,375 INFO L87 Difference]: Start difference. First operand 438 states and 675 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:52,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:54,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:45:56,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:56,155 INFO L93 Difference]: Finished difference Result 888 states and 1374 transitions. [2022-02-24 00:45:56,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:56,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-02-24 00:45:56,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:56,157 INFO L225 Difference]: With dead ends: 888 [2022-02-24 00:45:56,157 INFO L226 Difference]: Without dead ends: 476 [2022-02-24 00:45:56,158 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 00:45:56,159 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 78 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:56,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 581 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-24 00:45:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-02-24 00:45:56,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 438. [2022-02-24 00:45:56,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5473441108545034) internal successors, (670), 433 states have internal predecessors, (670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 674 transitions. [2022-02-24 00:45:56,168 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 674 transitions. Word has length 142 [2022-02-24 00:45:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:56,168 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 674 transitions. [2022-02-24 00:45:56,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:56,168 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 674 transitions. [2022-02-24 00:45:56,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-02-24 00:45:56,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:56,169 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:45:56,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:45:56,170 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:56,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1070138928, now seen corresponding path program 1 times [2022-02-24 00:45:56,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:56,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515225481] [2022-02-24 00:45:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:56,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:45:56,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:56,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515225481] [2022-02-24 00:45:56,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515225481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:56,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:56,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:56,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967300031] [2022-02-24 00:45:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:56,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:56,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:56,292 INFO L87 Difference]: Start difference. First operand 438 states and 674 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:58,302 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 00:45:58,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:45:58,853 INFO L93 Difference]: Finished difference Result 1010 states and 1567 transitions. [2022-02-24 00:45:58,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:45:58,853 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 142 [2022-02-24 00:45:58,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:45:58,856 INFO L225 Difference]: With dead ends: 1010 [2022-02-24 00:45:58,856 INFO L226 Difference]: Without dead ends: 598 [2022-02-24 00:45:58,857 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 00:45:58,857 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 140 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:45:58,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 464 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:45:58,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-02-24 00:45:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 502. [2022-02-24 00:45:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5492957746478873) internal successors, (770), 497 states have internal predecessors, (770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:58,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 774 transitions. [2022-02-24 00:45:58,868 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 774 transitions. Word has length 142 [2022-02-24 00:45:58,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:45:58,868 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 774 transitions. [2022-02-24 00:45:58,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:45:58,868 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 774 transitions. [2022-02-24 00:45:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-24 00:45:58,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:45:58,870 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, 1] [2022-02-24 00:45:58,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:45:58,870 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:45:58,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:45:58,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2028100243, now seen corresponding path program 1 times [2022-02-24 00:45:58,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:45:58,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770864164] [2022-02-24 00:45:58,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:45:58,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:45:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:58,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:45:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:45:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:45:58,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:45:58,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770864164] [2022-02-24 00:45:58,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770864164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:45:58,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:45:58,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:45:58,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289717979] [2022-02-24 00:45:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:45:58,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:45:58,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:45:58,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:45:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:45:58,996 INFO L87 Difference]: Start difference. First operand 502 states and 774 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 00:46:00,783 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 00:46:02,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:04,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:06,858 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 00:46:07,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:07,293 INFO L93 Difference]: Finished difference Result 1016 states and 1572 transitions. [2022-02-24 00:46:07,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:07,293 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 00:46:07,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:07,295 INFO L225 Difference]: With dead ends: 1016 [2022-02-24 00:46:07,295 INFO L226 Difference]: Without dead ends: 540 [2022-02-24 00:46:07,295 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 00:46:07,296 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 71 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:07,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 581 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 511 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 00:46:07,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-24 00:46:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 502. [2022-02-24 00:46:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5472837022132797) internal successors, (769), 497 states have internal predecessors, (769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:07,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 773 transitions. [2022-02-24 00:46:07,313 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 773 transitions. Word has length 147 [2022-02-24 00:46:07,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:07,313 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 773 transitions. [2022-02-24 00:46:07,314 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 00:46:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 773 transitions. [2022-02-24 00:46:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-24 00:46:07,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:07,315 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, 1] [2022-02-24 00:46:07,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:46:07,316 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:07,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1894973686, now seen corresponding path program 1 times [2022-02-24 00:46:07,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:07,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528419056] [2022-02-24 00:46:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:07,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-24 00:46:07,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:07,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528419056] [2022-02-24 00:46:07,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528419056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:07,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:07,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:07,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286216604] [2022-02-24 00:46:07,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:07,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:07,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:07,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:07,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:07,479 INFO L87 Difference]: Start difference. First operand 502 states and 773 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:09,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:11,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:13,070 WARN L534 Checker$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 00:46:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:13,541 INFO L93 Difference]: Finished difference Result 1060 states and 1636 transitions. [2022-02-24 00:46:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-24 00:46:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:13,544 INFO L225 Difference]: With dead ends: 1060 [2022-02-24 00:46:13,544 INFO L226 Difference]: Without dead ends: 584 [2022-02-24 00:46:13,544 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 00:46:13,545 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 142 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:13,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 420 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:46:13,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-02-24 00:46:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 502. [2022-02-24 00:46:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5331991951710262) internal successors, (762), 497 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:13,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 766 transitions. [2022-02-24 00:46:13,555 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 766 transitions. Word has length 148 [2022-02-24 00:46:13,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:13,555 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 766 transitions. [2022-02-24 00:46:13,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:13,555 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 766 transitions. [2022-02-24 00:46:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 00:46:13,557 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:13,557 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:13,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:46:13,557 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:13,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1482094416, now seen corresponding path program 1 times [2022-02-24 00:46:13,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:13,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124949462] [2022-02-24 00:46:13,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:13,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-24 00:46:13,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:13,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124949462] [2022-02-24 00:46:13,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124949462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:13,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:13,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:13,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518614027] [2022-02-24 00:46:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:13,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:13,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:13,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:13,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:13,678 INFO L87 Difference]: Start difference. First operand 502 states and 766 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:15,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:16,793 INFO L93 Difference]: Finished difference Result 1451 states and 2236 transitions. [2022-02-24 00:46:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:16,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-24 00:46:16,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:16,796 INFO L225 Difference]: With dead ends: 1451 [2022-02-24 00:46:16,796 INFO L226 Difference]: Without dead ends: 975 [2022-02-24 00:46:16,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:16,797 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 154 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:16,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 460 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-24 00:46:16,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-02-24 00:46:16,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-02-24 00:46:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 970 states have (on average 1.5195876288659793) internal successors, (1474), 970 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:16,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1478 transitions. [2022-02-24 00:46:16,813 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1478 transitions. Word has length 149 [2022-02-24 00:46:16,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:16,814 INFO L470 AbstractCegarLoop]: Abstraction has 975 states and 1478 transitions. [2022-02-24 00:46:16,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:16,814 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1478 transitions. [2022-02-24 00:46:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 00:46:16,816 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:16,816 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:16,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:46:16,816 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1682086255, now seen corresponding path program 1 times [2022-02-24 00:46:16,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:16,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645259034] [2022-02-24 00:46:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:16,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-24 00:46:16,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:16,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645259034] [2022-02-24 00:46:16,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645259034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:16,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:16,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:16,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468290447] [2022-02-24 00:46:16,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:16,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:16,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:16,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:16,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:16,920 INFO L87 Difference]: Start difference. First operand 975 states and 1478 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:19,557 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 00:46:20,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:20,685 INFO L93 Difference]: Finished difference Result 1951 states and 2963 transitions. [2022-02-24 00:46:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:20,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-24 00:46:20,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:20,688 INFO L225 Difference]: With dead ends: 1951 [2022-02-24 00:46:20,688 INFO L226 Difference]: Without dead ends: 1002 [2022-02-24 00:46:20,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:20,689 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:20,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 441 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 297 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 00:46:20,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-02-24 00:46:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2022-02-24 00:46:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 997 states have (on average 1.5135406218655967) internal successors, (1509), 997 states have internal predecessors, (1509), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1513 transitions. [2022-02-24 00:46:20,708 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1513 transitions. Word has length 149 [2022-02-24 00:46:20,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:20,708 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1513 transitions. [2022-02-24 00:46:20,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:20,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1513 transitions. [2022-02-24 00:46:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 00:46:20,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:20,711 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:20,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:46:20,711 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:20,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:20,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1251169454, now seen corresponding path program 1 times [2022-02-24 00:46:20,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:20,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476204318] [2022-02-24 00:46:20,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:20,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:20,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-02-24 00:46:20,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:20,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476204318] [2022-02-24 00:46:20,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476204318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:20,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:20,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:20,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466724135] [2022-02-24 00:46:20,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:20,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:20,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:20,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:20,839 INFO L87 Difference]: Start difference. First operand 1002 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:22,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:24,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:26,143 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 00:46:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:26,467 INFO L93 Difference]: Finished difference Result 1980 states and 2999 transitions. [2022-02-24 00:46:26,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:26,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-24 00:46:26,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:26,471 INFO L225 Difference]: With dead ends: 1980 [2022-02-24 00:46:26,471 INFO L226 Difference]: Without dead ends: 1004 [2022-02-24 00:46:26,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:26,472 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:26,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 420 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:46:26,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-02-24 00:46:26,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2022-02-24 00:46:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 999 states have (on average 1.5125125125125125) internal successors, (1511), 999 states have internal predecessors, (1511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1515 transitions. [2022-02-24 00:46:26,489 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1515 transitions. Word has length 149 [2022-02-24 00:46:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:26,489 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 1515 transitions. [2022-02-24 00:46:26,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1515 transitions. [2022-02-24 00:46:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-02-24 00:46:26,492 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:26,492 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:26,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:46:26,492 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1922874825, now seen corresponding path program 1 times [2022-02-24 00:46:26,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:26,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690552200] [2022-02-24 00:46:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:26,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:46:26,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:26,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690552200] [2022-02-24 00:46:26,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690552200] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:26,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:26,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:26,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652955407] [2022-02-24 00:46:26,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:26,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:26,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:26,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:26,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:26,604 INFO L87 Difference]: Start difference. First operand 1004 states and 1515 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:29,130 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 00:46:30,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:31,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:31,297 INFO L93 Difference]: Finished difference Result 2453 states and 3732 transitions. [2022-02-24 00:46:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:31,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-02-24 00:46:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:31,301 INFO L225 Difference]: With dead ends: 2453 [2022-02-24 00:46:31,301 INFO L226 Difference]: Without dead ends: 1477 [2022-02-24 00:46:31,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:31,303 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 159 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:31,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 601 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 00:46:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-02-24 00:46:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1477. [2022-02-24 00:46:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1472 states have (on average 1.5101902173913044) internal successors, (2223), 1472 states have internal predecessors, (2223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2227 transitions. [2022-02-24 00:46:31,328 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2227 transitions. Word has length 151 [2022-02-24 00:46:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:31,328 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 2227 transitions. [2022-02-24 00:46:31,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:31,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2227 transitions. [2022-02-24 00:46:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-02-24 00:46:31,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:31,332 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:31,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:46:31,332 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:31,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:31,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2054889748, now seen corresponding path program 1 times [2022-02-24 00:46:31,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:31,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871665338] [2022-02-24 00:46:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:31,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-24 00:46:31,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:31,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871665338] [2022-02-24 00:46:31,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871665338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:31,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:31,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:31,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553009067] [2022-02-24 00:46:31,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:31,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:31,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:31,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:31,468 INFO L87 Difference]: Start difference. First operand 1477 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:33,480 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 00:46:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:33,960 INFO L93 Difference]: Finished difference Result 3167 states and 4743 transitions. [2022-02-24 00:46:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:33,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-02-24 00:46:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:33,966 INFO L225 Difference]: With dead ends: 3167 [2022-02-24 00:46:33,966 INFO L226 Difference]: Without dead ends: 1718 [2022-02-24 00:46:33,967 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 00:46:33,968 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 134 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:33,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 452 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:46:33,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-02-24 00:46:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1453. [2022-02-24 00:46:34,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.5041436464088398) internal successors, (2178), 1448 states have internal predecessors, (2178), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:34,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2182 transitions. [2022-02-24 00:46:34,026 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2182 transitions. Word has length 180 [2022-02-24 00:46:34,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:34,026 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 2182 transitions. [2022-02-24 00:46:34,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2182 transitions. [2022-02-24 00:46:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-02-24 00:46:34,029 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:34,030 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:34,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:46:34,030 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash -657160692, now seen corresponding path program 1 times [2022-02-24 00:46:34,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:34,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835938377] [2022-02-24 00:46:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:34,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-02-24 00:46:34,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:34,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835938377] [2022-02-24 00:46:34,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835938377] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:34,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:34,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:34,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749415633] [2022-02-24 00:46:34,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:34,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:34,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:34,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:34,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:34,184 INFO L87 Difference]: Start difference. First operand 1453 states and 2182 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:36,199 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 00:46:36,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:36,720 INFO L93 Difference]: Finished difference Result 3058 states and 4596 transitions. [2022-02-24 00:46:36,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:36,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-02-24 00:46:36,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:36,726 INFO L225 Difference]: With dead ends: 3058 [2022-02-24 00:46:36,727 INFO L226 Difference]: Without dead ends: 1633 [2022-02-24 00:46:36,729 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 00:46:36,729 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 49 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:36,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 689 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 537 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:46:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-02-24 00:46:36,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1537. [2022-02-24 00:46:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1532 states have (on average 1.5058746736292428) internal successors, (2307), 1532 states have internal predecessors, (2307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2311 transitions. [2022-02-24 00:46:36,759 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2311 transitions. Word has length 200 [2022-02-24 00:46:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:36,759 INFO L470 AbstractCegarLoop]: Abstraction has 1537 states and 2311 transitions. [2022-02-24 00:46:36,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2311 transitions. [2022-02-24 00:46:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-02-24 00:46:36,763 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:36,763 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:36,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:46:36,763 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:36,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1785983448, now seen corresponding path program 1 times [2022-02-24 00:46:36,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:36,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68259663] [2022-02-24 00:46:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:36,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:36,925 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-02-24 00:46:36,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:36,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68259663] [2022-02-24 00:46:36,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68259663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:36,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:36,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:46:36,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553752217] [2022-02-24 00:46:36,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:36,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:46:36,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:36,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:46:36,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:46:36,927 INFO L87 Difference]: Start difference. First operand 1537 states and 2311 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:38,043 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 00:46:40,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:42,092 WARN L534 Checker$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 00:46:44,114 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 00:46:45,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:45,350 INFO L93 Difference]: Finished difference Result 3046 states and 4590 transitions. [2022-02-24 00:46:45,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 00:46:45,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-02-24 00:46:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:45,356 INFO L225 Difference]: With dead ends: 3046 [2022-02-24 00:46:45,356 INFO L226 Difference]: Without dead ends: 1537 [2022-02-24 00:46:45,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:46:45,358 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 167 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 42 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:45,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 448 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 548 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-02-24 00:46:45,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2022-02-24 00:46:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1537. [2022-02-24 00:46:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1532 states have (on average 1.5039164490861618) internal successors, (2304), 1532 states have internal predecessors, (2304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2308 transitions. [2022-02-24 00:46:45,386 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2308 transitions. Word has length 203 [2022-02-24 00:46:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:45,386 INFO L470 AbstractCegarLoop]: Abstraction has 1537 states and 2308 transitions. [2022-02-24 00:46:45,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2308 transitions. [2022-02-24 00:46:45,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-24 00:46:45,389 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:45,390 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:45,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 00:46:45,390 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:45,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:45,390 INFO L85 PathProgramCache]: Analyzing trace with hash -346122628, now seen corresponding path program 1 times [2022-02-24 00:46:45,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:45,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530224428] [2022-02-24 00:46:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:45,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-24 00:46:45,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:45,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530224428] [2022-02-24 00:46:45,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530224428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:45,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:45,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:46:45,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593938447] [2022-02-24 00:46:45,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:45,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:46:45,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:45,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:46:45,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:45,551 INFO L87 Difference]: Start difference. First operand 1537 states and 2308 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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 00:46:48,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:49,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:49,148 INFO L93 Difference]: Finished difference Result 3540 states and 5346 transitions. [2022-02-24 00:46:49,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:46:49,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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 204 [2022-02-24 00:46:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:49,155 INFO L225 Difference]: With dead ends: 3540 [2022-02-24 00:46:49,155 INFO L226 Difference]: Without dead ends: 2031 [2022-02-24 00:46:49,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:46:49,158 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:49,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 393 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-02-24 00:46:49,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-02-24 00:46:49,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2022-02-24 00:46:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.5054294175715697) internal successors, (3050), 2026 states have internal predecessors, (3050), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:49,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3054 transitions. [2022-02-24 00:46:49,199 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3054 transitions. Word has length 204 [2022-02-24 00:46:49,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:49,199 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 3054 transitions. [2022-02-24 00:46:49,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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 00:46:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3054 transitions. [2022-02-24 00:46:49,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-24 00:46:49,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:49,205 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 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 00:46:49,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:46:49,205 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:49,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash 202349403, now seen corresponding path program 1 times [2022-02-24 00:46:49,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:49,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764713060] [2022-02-24 00:46:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:49,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-02-24 00:46:49,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:49,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764713060] [2022-02-24 00:46:49,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764713060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:49,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:49,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:49,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417978105] [2022-02-24 00:46:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:49,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:49,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:49,383 INFO L87 Difference]: Start difference. First operand 2031 states and 3054 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:52,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:54,096 WARN L534 Checker$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 00:46:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:46:55,442 INFO L93 Difference]: Finished difference Result 4315 states and 6452 transitions. [2022-02-24 00:46:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:46:55,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-02-24 00:46:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:46:55,450 INFO L225 Difference]: With dead ends: 4315 [2022-02-24 00:46:55,451 INFO L226 Difference]: Without dead ends: 2312 [2022-02-24 00:46:55,454 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 00:46:55,454 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 149 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:46:55,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 472 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:46:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-02-24 00:46:55,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2031. [2022-02-24 00:46:55,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4896347482724581) internal successors, (3018), 2026 states have internal predecessors, (3018), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:55,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3022 transitions. [2022-02-24 00:46:55,497 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3022 transitions. Word has length 250 [2022-02-24 00:46:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:46:55,497 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 3022 transitions. [2022-02-24 00:46:55,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:55,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3022 transitions. [2022-02-24 00:46:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-02-24 00:46:55,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:46:55,502 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:46:55,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:46:55,502 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:46:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:46:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1727594732, now seen corresponding path program 1 times [2022-02-24 00:46:55,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:46:55,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779199211] [2022-02-24 00:46:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:46:55,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:46:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:55,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:46:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:46:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-02-24 00:46:55,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:46:55,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779199211] [2022-02-24 00:46:55,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779199211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:46:55,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:46:55,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:46:55,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198231391] [2022-02-24 00:46:55,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:46:55,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:46:55,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:46:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:46:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:46:55,684 INFO L87 Difference]: Start difference. First operand 2031 states and 3022 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:46:58,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:46:59,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:02,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:02,505 INFO L93 Difference]: Finished difference Result 4315 states and 6388 transitions. [2022-02-24 00:47:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:02,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 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 254 [2022-02-24 00:47:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:02,511 INFO L225 Difference]: With dead ends: 4315 [2022-02-24 00:47:02,511 INFO L226 Difference]: Without dead ends: 2312 [2022-02-24 00:47:02,514 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 00:47:02,514 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 141 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:02,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 519 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 00:47:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-02-24 00:47:02,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2031. [2022-02-24 00:47:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4718657453109576) internal successors, (2982), 2026 states have internal predecessors, (2982), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2986 transitions. [2022-02-24 00:47:02,557 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2986 transitions. Word has length 254 [2022-02-24 00:47:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:02,557 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 2986 transitions. [2022-02-24 00:47:02,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2986 transitions. [2022-02-24 00:47:02,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-02-24 00:47:02,561 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:02,561 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:02,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:47:02,561 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:02,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash 928481516, now seen corresponding path program 1 times [2022-02-24 00:47:02,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:02,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194794709] [2022-02-24 00:47:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-02-24 00:47:02,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:02,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194794709] [2022-02-24 00:47:02,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194794709] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:02,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:02,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:02,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151160227] [2022-02-24 00:47:02,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:02,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:02,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:02,745 INFO L87 Difference]: Start difference. First operand 2031 states and 2986 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:03,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:05,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:07,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:08,152 INFO L93 Difference]: Finished difference Result 4122 states and 6066 transitions. [2022-02-24 00:47:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:08,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 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 254 [2022-02-24 00:47:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:08,158 INFO L225 Difference]: With dead ends: 4122 [2022-02-24 00:47:08,158 INFO L226 Difference]: Without dead ends: 2119 [2022-02-24 00:47:08,161 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 00:47:08,161 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 43 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:08,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 673 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:47:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2022-02-24 00:47:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2031. [2022-02-24 00:47:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4698914116485686) internal successors, (2978), 2026 states have internal predecessors, (2978), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2982 transitions. [2022-02-24 00:47:08,204 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2982 transitions. Word has length 254 [2022-02-24 00:47:08,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:08,204 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 2982 transitions. [2022-02-24 00:47:08,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:08,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2982 transitions. [2022-02-24 00:47:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-02-24 00:47:08,208 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:08,208 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:08,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:47:08,208 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:08,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2128150485, now seen corresponding path program 1 times [2022-02-24 00:47:08,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:08,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731453068] [2022-02-24 00:47:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:08,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-02-24 00:47:08,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:08,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731453068] [2022-02-24 00:47:08,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731453068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:08,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:08,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:08,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450346824] [2022-02-24 00:47:08,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:08,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:08,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:08,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:08,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:08,366 INFO L87 Difference]: Start difference. First operand 2031 states and 2982 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:10,375 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 00:47:10,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:10,893 INFO L93 Difference]: Finished difference Result 4315 states and 6308 transitions. [2022-02-24 00:47:10,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:10,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-02-24 00:47:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:10,898 INFO L225 Difference]: With dead ends: 4315 [2022-02-24 00:47:10,898 INFO L226 Difference]: Without dead ends: 2312 [2022-02-24 00:47:10,901 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 00:47:10,902 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 140 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:10,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 472 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:47:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-02-24 00:47:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2031. [2022-02-24 00:47:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.452122408687068) internal successors, (2942), 2026 states have internal predecessors, (2942), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:10,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2946 transitions. [2022-02-24 00:47:10,976 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2946 transitions. Word has length 255 [2022-02-24 00:47:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:10,976 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 2946 transitions. [2022-02-24 00:47:10,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2946 transitions. [2022-02-24 00:47:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-02-24 00:47:10,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:10,981 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:10,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 00:47:10,982 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:10,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:10,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1719015786, now seen corresponding path program 1 times [2022-02-24 00:47:10,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:10,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654685587] [2022-02-24 00:47:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:10,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:11,156 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-02-24 00:47:11,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:11,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654685587] [2022-02-24 00:47:11,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654685587] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:11,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:11,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:11,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47870002] [2022-02-24 00:47:11,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:11,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:11,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:11,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:11,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:11,158 INFO L87 Difference]: Start difference. First operand 2031 states and 2946 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:12,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:14,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:16,490 WARN L534 Checker$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 00:47:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:17,840 INFO L93 Difference]: Finished difference Result 4087 states and 5939 transitions. [2022-02-24 00:47:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-02-24 00:47:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:17,845 INFO L225 Difference]: With dead ends: 4087 [2022-02-24 00:47:17,845 INFO L226 Difference]: Without dead ends: 2084 [2022-02-24 00:47:17,859 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 00:47:17,860 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 30 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:17,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 653 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 00:47:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2022-02-24 00:47:17,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2031. [2022-02-24 00:47:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4501480750246791) internal successors, (2938), 2026 states have internal predecessors, (2938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2942 transitions. [2022-02-24 00:47:17,923 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2942 transitions. Word has length 255 [2022-02-24 00:47:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:17,923 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 2942 transitions. [2022-02-24 00:47:17,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2942 transitions. [2022-02-24 00:47:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-02-24 00:47:17,927 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:17,927 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:17,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 00:47:17,927 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -107181123, now seen corresponding path program 1 times [2022-02-24 00:47:17,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:17,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508886947] [2022-02-24 00:47:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:17,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-02-24 00:47:18,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:18,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508886947] [2022-02-24 00:47:18,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508886947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:18,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:18,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:18,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148731859] [2022-02-24 00:47:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:18,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:18,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:18,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:18,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:18,090 INFO L87 Difference]: Start difference. First operand 2031 states and 2942 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:20,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:22,962 WARN L534 Checker$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 00:47:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:23,476 INFO L93 Difference]: Finished difference Result 4527 states and 6569 transitions. [2022-02-24 00:47:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:23,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-02-24 00:47:23,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:23,480 INFO L225 Difference]: With dead ends: 4527 [2022-02-24 00:47:23,480 INFO L226 Difference]: Without dead ends: 2524 [2022-02-24 00:47:23,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:23,482 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:23,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 00:47:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-02-24 00:47:23,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2524. [2022-02-24 00:47:23,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 2519 states have (on average 1.4485907105994442) internal successors, (3649), 2519 states have internal predecessors, (3649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 3653 transitions. [2022-02-24 00:47:23,520 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 3653 transitions. Word has length 257 [2022-02-24 00:47:23,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:23,520 INFO L470 AbstractCegarLoop]: Abstraction has 2524 states and 3653 transitions. [2022-02-24 00:47:23,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 3653 transitions. [2022-02-24 00:47:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-24 00:47:23,524 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:23,524 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 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 00:47:23,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 00:47:23,524 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:23,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash 689420994, now seen corresponding path program 1 times [2022-02-24 00:47:23,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:23,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046937488] [2022-02-24 00:47:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:23,683 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-02-24 00:47:23,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:23,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046937488] [2022-02-24 00:47:23,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046937488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:23,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:23,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:23,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271155266] [2022-02-24 00:47:23,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:23,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:23,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:23,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:23,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:23,685 INFO L87 Difference]: Start difference. First operand 2524 states and 3653 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:25,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:26,103 INFO L93 Difference]: Finished difference Result 5141 states and 7437 transitions. [2022-02-24 00:47:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:26,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 263 [2022-02-24 00:47:26,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:26,107 INFO L225 Difference]: With dead ends: 5141 [2022-02-24 00:47:26,107 INFO L226 Difference]: Without dead ends: 2645 [2022-02-24 00:47:26,110 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 00:47:26,110 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 14 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:26,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 637 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:47:26,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-02-24 00:47:26,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2629. [2022-02-24 00:47:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2624 states have (on average 1.4439786585365855) internal successors, (3789), 2624 states have internal predecessors, (3789), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:26,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3793 transitions. [2022-02-24 00:47:26,152 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3793 transitions. Word has length 263 [2022-02-24 00:47:26,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:26,153 INFO L470 AbstractCegarLoop]: Abstraction has 2629 states and 3793 transitions. [2022-02-24 00:47:26,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:26,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3793 transitions. [2022-02-24 00:47:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-02-24 00:47:26,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:26,156 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 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 00:47:26,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 00:47:26,156 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:26,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:26,157 INFO L85 PathProgramCache]: Analyzing trace with hash 74849305, now seen corresponding path program 1 times [2022-02-24 00:47:26,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:26,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430955897] [2022-02-24 00:47:26,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:26,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-02-24 00:47:26,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:26,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430955897] [2022-02-24 00:47:26,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430955897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:26,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:26,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:47:26,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969975346] [2022-02-24 00:47:26,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:26,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:47:26,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:26,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:47:26,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:47:26,360 INFO L87 Difference]: Start difference. First operand 2629 states and 3793 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:28,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:29,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:30,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:32,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:32,907 INFO L93 Difference]: Finished difference Result 5580 states and 8052 transitions. [2022-02-24 00:47:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:47:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 265 [2022-02-24 00:47:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:32,913 INFO L225 Difference]: With dead ends: 5580 [2022-02-24 00:47:32,914 INFO L226 Difference]: Without dead ends: 2979 [2022-02-24 00:47:32,918 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 00:47:32,919 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 64 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:32,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 699 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 00:47:32,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-02-24 00:47:32,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2749. [2022-02-24 00:47:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2744 states have (on average 1.4409620991253644) internal successors, (3954), 2744 states have internal predecessors, (3954), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3958 transitions. [2022-02-24 00:47:32,976 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3958 transitions. Word has length 265 [2022-02-24 00:47:32,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:32,976 INFO L470 AbstractCegarLoop]: Abstraction has 2749 states and 3958 transitions. [2022-02-24 00:47:32,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:32,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3958 transitions. [2022-02-24 00:47:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-02-24 00:47:32,981 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:32,981 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:32,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 00:47:32,981 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:32,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash 591860456, now seen corresponding path program 1 times [2022-02-24 00:47:32,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:32,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457246536] [2022-02-24 00:47:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 450 proven. 46 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-24 00:47:33,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:33,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457246536] [2022-02-24 00:47:33,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457246536] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:47:33,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990859281] [2022-02-24 00:47:33,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:33,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:47:33,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:47:33,227 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 00:47:33,239 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 00:47:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:34,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-24 00:47:34,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:47:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-02-24 00:47:34,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-24 00:47:34,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990859281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:34,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-24 00:47:34,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-24 00:47:34,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387052340] [2022-02-24 00:47:34,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:34,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-24 00:47:34,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-24 00:47:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:47:34,637 INFO L87 Difference]: Start difference. First operand 2749 states and 3958 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 00:47:34,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:34,759 INFO L93 Difference]: Finished difference Result 6009 states and 8679 transitions. [2022-02-24 00:47:34,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-24 00:47:34,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 269 [2022-02-24 00:47:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:34,766 INFO L225 Difference]: With dead ends: 6009 [2022-02-24 00:47:34,767 INFO L226 Difference]: Without dead ends: 3288 [2022-02-24 00:47:34,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:47:34,771 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:34,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 394 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 00:47:34,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2022-02-24 00:47:34,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3288. [2022-02-24 00:47:34,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3283 states have (on average 1.442278403898873) internal successors, (4735), 3283 states have internal predecessors, (4735), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4739 transitions. [2022-02-24 00:47:34,858 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4739 transitions. Word has length 269 [2022-02-24 00:47:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:34,858 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 4739 transitions. [2022-02-24 00:47:34,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 00:47:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4739 transitions. [2022-02-24 00:47:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-24 00:47:34,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:34,864 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:34,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-24 00:47:35,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-02-24 00:47:35,088 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:35,088 INFO L85 PathProgramCache]: Analyzing trace with hash -32022594, now seen corresponding path program 1 times [2022-02-24 00:47:35,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:35,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181066944] [2022-02-24 00:47:35,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:35,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-02-24 00:47:35,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:35,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181066944] [2022-02-24 00:47:35,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181066944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:35,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:35,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:35,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313678416] [2022-02-24 00:47:35,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:35,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:35,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:35,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:35,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:35,274 INFO L87 Difference]: Start difference. First operand 3288 states and 4739 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:38,947 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 00:47:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:39,529 INFO L93 Difference]: Finished difference Result 7079 states and 10228 transitions. [2022-02-24 00:47:39,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:39,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-24 00:47:39,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:39,537 INFO L225 Difference]: With dead ends: 7079 [2022-02-24 00:47:39,537 INFO L226 Difference]: Without dead ends: 3819 [2022-02-24 00:47:39,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:39,544 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:39,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 600 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-24 00:47:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2022-02-24 00:47:39,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2022-02-24 00:47:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3819 states, 3814 states have (on average 1.441793392763503) internal successors, (5499), 3814 states have internal predecessors, (5499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5503 transitions. [2022-02-24 00:47:39,627 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5503 transitions. Word has length 277 [2022-02-24 00:47:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:39,627 INFO L470 AbstractCegarLoop]: Abstraction has 3819 states and 5503 transitions. [2022-02-24 00:47:39,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5503 transitions. [2022-02-24 00:47:39,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-24 00:47:39,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:39,661 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:39,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 00:47:39,661 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:39,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:39,661 INFO L85 PathProgramCache]: Analyzing trace with hash -480719233, now seen corresponding path program 1 times [2022-02-24 00:47:39,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:39,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841487099] [2022-02-24 00:47:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:39,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-24 00:47:39,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:39,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841487099] [2022-02-24 00:47:39,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841487099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:39,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:39,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:39,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976907932] [2022-02-24 00:47:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:39,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:39,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:39,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:39,845 INFO L87 Difference]: Start difference. First operand 3819 states and 5503 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:42,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:44,838 WARN L534 Checker$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 00:47:45,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:45,440 INFO L93 Difference]: Finished difference Result 8116 states and 11721 transitions. [2022-02-24 00:47:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:45,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-24 00:47:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:45,448 INFO L225 Difference]: With dead ends: 8116 [2022-02-24 00:47:45,449 INFO L226 Difference]: Without dead ends: 4325 [2022-02-24 00:47:45,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:45,455 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:45,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 00:47:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2022-02-24 00:47:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4325. [2022-02-24 00:47:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4320 states have (on average 1.4407407407407407) internal successors, (6224), 4320 states have internal predecessors, (6224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6228 transitions. [2022-02-24 00:47:45,542 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6228 transitions. Word has length 277 [2022-02-24 00:47:45,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:45,543 INFO L470 AbstractCegarLoop]: Abstraction has 4325 states and 6228 transitions. [2022-02-24 00:47:45,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6228 transitions. [2022-02-24 00:47:45,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-02-24 00:47:45,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:45,551 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:45,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 00:47:45,551 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1753532031, now seen corresponding path program 1 times [2022-02-24 00:47:45,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:45,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913321947] [2022-02-24 00:47:45,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:45,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-02-24 00:47:45,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:45,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913321947] [2022-02-24 00:47:45,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913321947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:45,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:45,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:45,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238413863] [2022-02-24 00:47:45,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:45,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:45,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:45,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:45,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:45,791 INFO L87 Difference]: Start difference. First operand 4325 states and 6228 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 00:47:47,807 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 00:47:48,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:48,248 INFO L93 Difference]: Finished difference Result 9161 states and 13219 transitions. [2022-02-24 00:47:48,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:48,249 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 372 [2022-02-24 00:47:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:48,258 INFO L225 Difference]: With dead ends: 9161 [2022-02-24 00:47:48,258 INFO L226 Difference]: Without dead ends: 4864 [2022-02-24 00:47:48,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:48,265 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:48,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 388 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 303 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:47:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2022-02-24 00:47:48,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 4864. [2022-02-24 00:47:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4864 states, 4859 states have (on average 1.4422720724428895) internal successors, (7008), 4859 states have internal predecessors, (7008), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4864 states to 4864 states and 7012 transitions. [2022-02-24 00:47:48,408 INFO L78 Accepts]: Start accepts. Automaton has 4864 states and 7012 transitions. Word has length 372 [2022-02-24 00:47:48,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:48,409 INFO L470 AbstractCegarLoop]: Abstraction has 4864 states and 7012 transitions. [2022-02-24 00:47:48,409 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 00:47:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4864 states and 7012 transitions. [2022-02-24 00:47:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-02-24 00:47:48,418 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:48,418 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:48,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 00:47:48,419 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1399260897, now seen corresponding path program 1 times [2022-02-24 00:47:48,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:48,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579086561] [2022-02-24 00:47:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:48,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:48,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-02-24 00:47:48,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:48,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579086561] [2022-02-24 00:47:48,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579086561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:48,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:48,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:48,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651510789] [2022-02-24 00:47:48,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:48,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:48,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:48,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:48,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:48,706 INFO L87 Difference]: Start difference. First operand 4864 states and 7012 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:51,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:53,294 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 00:47:53,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:53,900 INFO L93 Difference]: Finished difference Result 10232 states and 14776 transitions. [2022-02-24 00:47:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:53,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 400 [2022-02-24 00:47:53,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:53,907 INFO L225 Difference]: With dead ends: 10232 [2022-02-24 00:47:53,907 INFO L226 Difference]: Without dead ends: 5396 [2022-02-24 00:47:53,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:53,914 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:53,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-24 00:47:53,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2022-02-24 00:47:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5396. [2022-02-24 00:47:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5396 states, 5391 states have (on average 1.4418475236505286) internal successors, (7773), 5391 states have internal predecessors, (7773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:54,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 7777 transitions. [2022-02-24 00:47:54,066 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 7777 transitions. Word has length 400 [2022-02-24 00:47:54,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:54,066 INFO L470 AbstractCegarLoop]: Abstraction has 5396 states and 7777 transitions. [2022-02-24 00:47:54,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 7777 transitions. [2022-02-24 00:47:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-02-24 00:47:54,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:54,075 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:54,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 00:47:54,076 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:54,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:54,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1076531027, now seen corresponding path program 1 times [2022-02-24 00:47:54,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:54,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221989910] [2022-02-24 00:47:54,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:54,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-02-24 00:47:54,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:54,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221989910] [2022-02-24 00:47:54,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221989910] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:54,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:54,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:54,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598486284] [2022-02-24 00:47:54,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:54,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:54,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:54,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:54,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:54,331 INFO L87 Difference]: Start difference. First operand 5396 states and 7777 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:56,347 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 00:47:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:56,897 INFO L93 Difference]: Finished difference Result 11264 states and 16258 transitions. [2022-02-24 00:47:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 401 [2022-02-24 00:47:56,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:56,905 INFO L225 Difference]: With dead ends: 11264 [2022-02-24 00:47:56,905 INFO L226 Difference]: Without dead ends: 5896 [2022-02-24 00:47:56,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:56,913 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:56,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:47:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-02-24 00:47:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5896. [2022-02-24 00:47:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5891 states have (on average 1.4411814632490239) internal successors, (8490), 5891 states have internal predecessors, (8490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 8494 transitions. [2022-02-24 00:47:57,030 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 8494 transitions. Word has length 401 [2022-02-24 00:47:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:57,030 INFO L470 AbstractCegarLoop]: Abstraction has 5896 states and 8494 transitions. [2022-02-24 00:47:57,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:57,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 8494 transitions. [2022-02-24 00:47:57,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-02-24 00:47:57,041 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:57,041 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:47:57,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 00:47:57,041 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:57,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:57,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1526715425, now seen corresponding path program 1 times [2022-02-24 00:47:57,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:57,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612788995] [2022-02-24 00:47:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:47:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:57,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:47:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:47:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2022-02-24 00:47:57,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:47:57,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612788995] [2022-02-24 00:47:57,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612788995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:47:57,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:47:57,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:47:57,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050650482] [2022-02-24 00:47:57,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:47:57,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:47:57,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:47:57,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:47:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:57,316 INFO L87 Difference]: Start difference. First operand 5896 states and 8494 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:59,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:47:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:47:59,721 INFO L93 Difference]: Finished difference Result 12303 states and 17751 transitions. [2022-02-24 00:47:59,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:47:59,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 496 [2022-02-24 00:47:59,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:47:59,729 INFO L225 Difference]: With dead ends: 12303 [2022-02-24 00:47:59,729 INFO L226 Difference]: Without dead ends: 6435 [2022-02-24 00:47:59,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:47:59,737 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:47:59,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 303 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:47:59,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-02-24 00:47:59,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6435. [2022-02-24 00:47:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6430 states have (on average 1.4427682737169518) internal successors, (9277), 6430 states have internal predecessors, (9277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 9281 transitions. [2022-02-24 00:47:59,852 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 9281 transitions. Word has length 496 [2022-02-24 00:47:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:47:59,853 INFO L470 AbstractCegarLoop]: Abstraction has 6435 states and 9281 transitions. [2022-02-24 00:47:59,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:47:59,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 9281 transitions. [2022-02-24 00:47:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-24 00:47:59,863 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:47:59,863 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:47:59,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 00:47:59,863 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:47:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:47:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1803077245, now seen corresponding path program 1 times [2022-02-24 00:47:59,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:47:59,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949932477] [2022-02-24 00:47:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:47:59,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-02-24 00:48:00,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:00,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949932477] [2022-02-24 00:48:00,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949932477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:00,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:00,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:48:00,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298793972] [2022-02-24 00:48:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:00,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:00,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:00,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:00,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:00,175 INFO L87 Difference]: Start difference. First operand 6435 states and 9281 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 00:48:02,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:03,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:04,359 WARN L534 Checker$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 00:48:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:04,932 INFO L93 Difference]: Finished difference Result 13375 states and 19316 transitions. [2022-02-24 00:48:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:04,932 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 526 [2022-02-24 00:48:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:04,940 INFO L225 Difference]: With dead ends: 13375 [2022-02-24 00:48:04,940 INFO L226 Difference]: Without dead ends: 6968 [2022-02-24 00:48:04,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:04,949 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:04,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 00:48:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6968 states. [2022-02-24 00:48:05,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6968 to 6968. [2022-02-24 00:48:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 6963 states have (on average 1.4423380726698263) internal successors, (10043), 6963 states have internal predecessors, (10043), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 10047 transitions. [2022-02-24 00:48:05,085 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 10047 transitions. Word has length 526 [2022-02-24 00:48:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:05,085 INFO L470 AbstractCegarLoop]: Abstraction has 6968 states and 10047 transitions. [2022-02-24 00:48:05,086 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 00:48:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 10047 transitions. [2022-02-24 00:48:05,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-02-24 00:48:05,097 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:05,097 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:05,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 00:48:05,098 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:05,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:05,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2130819225, now seen corresponding path program 1 times [2022-02-24 00:48:05,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:05,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036549237] [2022-02-24 00:48:05,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:05,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-02-24 00:48:05,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:05,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036549237] [2022-02-24 00:48:05,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036549237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:05,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:05,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:48:05,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579599151] [2022-02-24 00:48:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:05,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:05,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:05,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:05,359 INFO L87 Difference]: Start difference. First operand 6968 states and 10047 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:06,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:08,548 WARN L534 Checker$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 00:48:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:09,369 INFO L93 Difference]: Finished difference Result 14409 states and 20800 transitions. [2022-02-24 00:48:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:09,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 527 [2022-02-24 00:48:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:09,377 INFO L225 Difference]: With dead ends: 14409 [2022-02-24 00:48:09,377 INFO L226 Difference]: Without dead ends: 7469 [2022-02-24 00:48:09,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:09,384 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:09,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-02-24 00:48:09,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2022-02-24 00:48:09,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 7469. [2022-02-24 00:48:09,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7469 states, 7464 states have (on average 1.4417202572347267) internal successors, (10761), 7464 states have internal predecessors, (10761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7469 states to 7469 states and 10765 transitions. [2022-02-24 00:48:09,528 INFO L78 Accepts]: Start accepts. Automaton has 7469 states and 10765 transitions. Word has length 527 [2022-02-24 00:48:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:09,528 INFO L470 AbstractCegarLoop]: Abstraction has 7469 states and 10765 transitions. [2022-02-24 00:48:09,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 7469 states and 10765 transitions. [2022-02-24 00:48:09,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2022-02-24 00:48:09,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:09,538 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 11, 10, 10, 9, 9, 8, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:48:09,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 00:48:09,538 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:09,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1570393095, now seen corresponding path program 1 times [2022-02-24 00:48:09,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:09,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912356749] [2022-02-24 00:48:09,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:09,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:09,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 1136 proven. 0 refuted. 0 times theorem prover too weak. 2605 trivial. 0 not checked. [2022-02-24 00:48:09,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:09,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912356749] [2022-02-24 00:48:09,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912356749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:09,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:09,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:48:09,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185577740] [2022-02-24 00:48:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:09,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:09,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:09,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:09,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:09,917 INFO L87 Difference]: Start difference. First operand 7469 states and 10765 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:11,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:13,224 WARN L534 Checker$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 00:48:13,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:13,618 INFO L93 Difference]: Finished difference Result 15449 states and 22293 transitions. [2022-02-24 00:48:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:13,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 623 [2022-02-24 00:48:13,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:13,628 INFO L225 Difference]: With dead ends: 15449 [2022-02-24 00:48:13,629 INFO L226 Difference]: Without dead ends: 8008 [2022-02-24 00:48:13,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:13,637 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:13,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-24 00:48:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2022-02-24 00:48:13,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 8008. [2022-02-24 00:48:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8008 states, 8003 states have (on average 1.4433337498438086) internal successors, (11551), 8003 states have internal predecessors, (11551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:13,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8008 states to 8008 states and 11555 transitions. [2022-02-24 00:48:13,921 INFO L78 Accepts]: Start accepts. Automaton has 8008 states and 11555 transitions. Word has length 623 [2022-02-24 00:48:13,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:13,921 INFO L470 AbstractCegarLoop]: Abstraction has 8008 states and 11555 transitions. [2022-02-24 00:48:13,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8008 states and 11555 transitions. [2022-02-24 00:48:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-02-24 00:48:13,932 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:13,933 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:13,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 00:48:13,933 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:13,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1012543035, now seen corresponding path program 1 times [2022-02-24 00:48:13,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:13,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205953241] [2022-02-24 00:48:13,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:13,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:14,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-02-24 00:48:14,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:14,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205953241] [2022-02-24 00:48:14,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205953241] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:14,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:14,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:48:14,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26169416] [2022-02-24 00:48:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:14,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:14,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:14,317 INFO L87 Difference]: Start difference. First operand 8008 states and 11555 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 00:48:16,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:17,397 WARN L534 Checker$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 00:48:19,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:19,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:19,793 INFO L93 Difference]: Finished difference Result 16522 states and 23866 transitions. [2022-02-24 00:48:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:19,794 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 655 [2022-02-24 00:48:19,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:19,803 INFO L225 Difference]: With dead ends: 16522 [2022-02-24 00:48:19,804 INFO L226 Difference]: Without dead ends: 8542 [2022-02-24 00:48:19,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:19,813 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:19,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 00:48:19,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-02-24 00:48:19,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 8542. [2022-02-24 00:48:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8542 states, 8537 states have (on average 1.4428956307836476) internal successors, (12318), 8537 states have internal predecessors, (12318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8542 states to 8542 states and 12322 transitions. [2022-02-24 00:48:20,012 INFO L78 Accepts]: Start accepts. Automaton has 8542 states and 12322 transitions. Word has length 655 [2022-02-24 00:48:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:20,012 INFO L470 AbstractCegarLoop]: Abstraction has 8542 states and 12322 transitions. [2022-02-24 00:48:20,013 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 00:48:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 8542 states and 12322 transitions. [2022-02-24 00:48:20,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-02-24 00:48:20,025 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:20,025 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:48:20,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 00:48:20,025 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:20,026 INFO L85 PathProgramCache]: Analyzing trace with hash -814672608, now seen corresponding path program 1 times [2022-02-24 00:48:20,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:20,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545560161] [2022-02-24 00:48:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:20,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 978 proven. 0 refuted. 0 times theorem prover too weak. 2968 trivial. 0 not checked. [2022-02-24 00:48:20,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:20,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545560161] [2022-02-24 00:48:20,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545560161] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:20,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:20,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:48:20,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721370122] [2022-02-24 00:48:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:20,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:20,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:20,276 INFO L87 Difference]: Start difference. First operand 8542 states and 12322 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:22,297 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 00:48:24,320 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 00:48:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:24,937 INFO L93 Difference]: Finished difference Result 17558 states and 25352 transitions. [2022-02-24 00:48:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:24,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-02-24 00:48:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:24,946 INFO L225 Difference]: With dead ends: 17558 [2022-02-24 00:48:24,946 INFO L226 Difference]: Without dead ends: 9044 [2022-02-24 00:48:24,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:24,955 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:24,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-24 00:48:24,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-02-24 00:48:25,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 9044. [2022-02-24 00:48:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 9039 states have (on average 1.4423055647748644) internal successors, (13037), 9039 states have internal predecessors, (13037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 13041 transitions. [2022-02-24 00:48:25,112 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 13041 transitions. Word has length 656 [2022-02-24 00:48:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:25,112 INFO L470 AbstractCegarLoop]: Abstraction has 9044 states and 13041 transitions. [2022-02-24 00:48:25,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:25,113 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 13041 transitions. [2022-02-24 00:48:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2022-02-24 00:48:25,127 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:25,127 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 14, 13, 13, 12, 12, 11, 11, 6, 6, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 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 00:48:25,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 00:48:25,127 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:25,128 INFO L85 PathProgramCache]: Analyzing trace with hash 137782722, now seen corresponding path program 1 times [2022-02-24 00:48:25,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:25,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430260730] [2022-02-24 00:48:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5425 backedges. 1402 proven. 0 refuted. 0 times theorem prover too weak. 4023 trivial. 0 not checked. [2022-02-24 00:48:25,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:25,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430260730] [2022-02-24 00:48:25,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430260730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:25,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:25,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:48:25,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065821983] [2022-02-24 00:48:25,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:25,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:48:25,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:25,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:48:25,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:25,674 INFO L87 Difference]: Start difference. First operand 9044 states and 13041 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:27,390 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 00:48:29,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:31,470 WARN L534 Checker$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 00:48:31,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:31,889 INFO L93 Difference]: Finished difference Result 18599 states and 26845 transitions. [2022-02-24 00:48:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:48:31,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 753 [2022-02-24 00:48:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:31,902 INFO L225 Difference]: With dead ends: 18599 [2022-02-24 00:48:31,902 INFO L226 Difference]: Without dead ends: 9583 [2022-02-24 00:48:31,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:48:31,913 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:31,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:48:31,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2022-02-24 00:48:32,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 9583. [2022-02-24 00:48:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9583 states, 9578 states have (on average 1.4439340154520777) internal successors, (13830), 9578 states have internal predecessors, (13830), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9583 states to 9583 states and 13834 transitions. [2022-02-24 00:48:32,085 INFO L78 Accepts]: Start accepts. Automaton has 9583 states and 13834 transitions. Word has length 753 [2022-02-24 00:48:32,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:32,085 INFO L470 AbstractCegarLoop]: Abstraction has 9583 states and 13834 transitions. [2022-02-24 00:48:32,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:32,086 INFO L276 IsEmpty]: Start isEmpty. Operand 9583 states and 13834 transitions. [2022-02-24 00:48:32,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-02-24 00:48:32,100 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:32,100 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 00:48:32,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 00:48:32,101 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:32,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1084698277, now seen corresponding path program 1 times [2022-02-24 00:48:32,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:32,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461251485] [2022-02-24 00:48:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:32,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2156 proven. 72 refuted. 0 times theorem prover too weak. 3474 trivial. 0 not checked. [2022-02-24 00:48:32,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:32,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461251485] [2022-02-24 00:48:32,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461251485] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:32,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421033751] [2022-02-24 00:48:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:32,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:48:32,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:48:32,788 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 00:48:32,789 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 00:48:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:34,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 47 conjunts are in the unsatisfiable core [2022-02-24 00:48:34,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:48:34,470 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:34,470 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 00:48:34,596 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 00:48:34,597 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 00:48:34,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:48:35,016 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:48:35,016 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 00:48:35,151 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:48:35,152 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 00:48:35,477 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 00:48:35,513 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 00:48:35,518 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 00:48:35,553 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-24 00:48:35,553 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 00:48:35,634 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 00:48:35,634 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 00:48:35,923 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:48:35,923 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 00:48:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2342 proven. 586 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-02-24 00:48:36,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:48:36,485 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 00:48:36,493 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 00:48:38,488 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 100 treesize of output 88 [2022-02-24 00:48:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2152 proven. 0 refuted. 0 times theorem prover too weak. 3550 trivial. 0 not checked. [2022-02-24 00:48:39,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421033751] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:48:39,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:48:39,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 13] total 19 [2022-02-24 00:48:39,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467908139] [2022-02-24 00:48:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:39,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 00:48:39,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 00:48:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-24 00:48:39,133 INFO L87 Difference]: Start difference. First operand 9583 states and 13834 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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 00:48:41,143 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 00:48:46,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:46,280 INFO L93 Difference]: Finished difference Result 26232 states and 37870 transitions. [2022-02-24 00:48:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:48:46,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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 787 [2022-02-24 00:48:46,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:46,303 INFO L225 Difference]: With dead ends: 26232 [2022-02-24 00:48:46,303 INFO L226 Difference]: Without dead ends: 16677 [2022-02-24 00:48:46,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1591 GetRequests, 1570 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-24 00:48:46,316 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 443 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 109 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 190 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:46,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1061 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 522 Invalid, 1 Unknown, 190 Unchecked, 2.8s Time] [2022-02-24 00:48:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16677 states. [2022-02-24 00:48:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16677 to 14437. [2022-02-24 00:48:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14437 states, 14432 states have (on average 1.4543375831485588) internal successors, (20989), 14432 states have internal predecessors, (20989), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14437 states to 14437 states and 20993 transitions. [2022-02-24 00:48:46,621 INFO L78 Accepts]: Start accepts. Automaton has 14437 states and 20993 transitions. Word has length 787 [2022-02-24 00:48:46,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:46,621 INFO L470 AbstractCegarLoop]: Abstraction has 14437 states and 20993 transitions. [2022-02-24 00:48:46,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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 00:48:46,622 INFO L276 IsEmpty]: Start isEmpty. Operand 14437 states and 20993 transitions. [2022-02-24 00:48:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-02-24 00:48:46,642 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:46,642 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 00:48:46,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-24 00:48:46,843 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,SelfDestructingSolverStorable62 [2022-02-24 00:48:46,844 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash -871520774, now seen corresponding path program 1 times [2022-02-24 00:48:46,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:46,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104097813] [2022-02-24 00:48:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:46,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 3223 proven. 0 refuted. 0 times theorem prover too weak. 2479 trivial. 0 not checked. [2022-02-24 00:48:47,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:47,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104097813] [2022-02-24 00:48:47,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104097813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:47,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:47,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:47,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837431515] [2022-02-24 00:48:47,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:47,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:47,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:47,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:47,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:47,369 INFO L87 Difference]: Start difference. First operand 14437 states and 20993 transitions. Second operand has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:49,804 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 00:48:52,424 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 00:48:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:48:53,212 INFO L93 Difference]: Finished difference Result 30922 states and 44924 transitions. [2022-02-24 00:48:53,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:48:53,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 787 [2022-02-24 00:48:53,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:48:53,234 INFO L225 Difference]: With dead ends: 30922 [2022-02-24 00:48:53,234 INFO L226 Difference]: Without dead ends: 16513 [2022-02-24 00:48:53,249 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 00:48:53,249 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 54 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:48:53,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 703 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:48:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16513 states. [2022-02-24 00:48:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16513 to 15607. [2022-02-24 00:48:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15607 states, 15602 states have (on average 1.4568004102038201) internal successors, (22729), 15602 states have internal predecessors, (22729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15607 states to 15607 states and 22733 transitions. [2022-02-24 00:48:53,665 INFO L78 Accepts]: Start accepts. Automaton has 15607 states and 22733 transitions. Word has length 787 [2022-02-24 00:48:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:48:53,665 INFO L470 AbstractCegarLoop]: Abstraction has 15607 states and 22733 transitions. [2022-02-24 00:48:53,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 15607 states and 22733 transitions. [2022-02-24 00:48:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2022-02-24 00:48:53,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:48:53,789 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 00:48:53,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 00:48:53,790 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:48:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:48:53,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1714969504, now seen corresponding path program 1 times [2022-02-24 00:48:53,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:48:53,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999012932] [2022-02-24 00:48:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:48:53,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:48:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:48:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:48:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5717 backedges. 3231 proven. 0 refuted. 0 times theorem prover too weak. 2486 trivial. 0 not checked. [2022-02-24 00:48:54,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:48:54,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999012932] [2022-02-24 00:48:54,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999012932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:48:54,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:48:54,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:48:54,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613722330] [2022-02-24 00:48:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:48:54,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:48:54,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:48:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:48:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:48:54,189 INFO L87 Difference]: Start difference. First operand 15607 states and 22733 transitions. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:48:55,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:57,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:48:59,775 WARN L534 Checker$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 00:49:01,799 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 00:49:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:02,712 INFO L93 Difference]: Finished difference Result 32074 states and 46628 transitions. [2022-02-24 00:49:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:02,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 790 [2022-02-24 00:49:02,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:02,737 INFO L225 Difference]: With dead ends: 32074 [2022-02-24 00:49:02,737 INFO L226 Difference]: Without dead ends: 16387 [2022-02-24 00:49:02,752 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 00:49:02,752 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 53 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:02,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 701 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 568 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:49:02,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16387 states. [2022-02-24 00:49:03,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16387 to 15517. [2022-02-24 00:49:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15517 states, 15512 states have (on average 1.4575167612171223) internal successors, (22609), 15512 states have internal predecessors, (22609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:03,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15517 states to 15517 states and 22613 transitions. [2022-02-24 00:49:03,041 INFO L78 Accepts]: Start accepts. Automaton has 15517 states and 22613 transitions. Word has length 790 [2022-02-24 00:49:03,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:03,042 INFO L470 AbstractCegarLoop]: Abstraction has 15517 states and 22613 transitions. [2022-02-24 00:49:03,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15517 states and 22613 transitions. [2022-02-24 00:49:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2022-02-24 00:49:03,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:03,147 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 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 00:49:03,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 00:49:03,147 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:03,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1157508164, now seen corresponding path program 1 times [2022-02-24 00:49:03,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:03,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985897188] [2022-02-24 00:49:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:03,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6944 backedges. 3949 proven. 46 refuted. 0 times theorem prover too weak. 2949 trivial. 0 not checked. [2022-02-24 00:49:03,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:03,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985897188] [2022-02-24 00:49:03,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985897188] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:49:03,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053199748] [2022-02-24 00:49:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:03,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:49:03,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:49:03,544 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 00:49:03,548 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 00:49:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:05,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 3637 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-24 00:49:05,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:49:05,172 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:05,172 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 00:49:05,213 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:49:05,214 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 00:49:05,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:49:05,650 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:05,650 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 00:49:05,739 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 00:49:06,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6944 backedges. 3944 proven. 238 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2022-02-24 00:49:06,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:49:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 6944 backedges. 3917 proven. 0 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-02-24 00:49:07,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053199748] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:49:07,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:49:07,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-24 00:49:07,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619534227] [2022-02-24 00:49:07,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:07,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:49:07,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:07,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:49:07,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-24 00:49:07,141 INFO L87 Difference]: Start difference. First operand 15517 states and 22613 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 00:49:08,923 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 00:49:09,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:09,562 INFO L93 Difference]: Finished difference Result 33421 states and 48577 transitions. [2022-02-24 00:49:09,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:49:09,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 853 [2022-02-24 00:49:09,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:09,586 INFO L225 Difference]: With dead ends: 33421 [2022-02-24 00:49:09,586 INFO L226 Difference]: Without dead ends: 17932 [2022-02-24 00:49:09,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1716 GetRequests, 1706 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-24 00:49:09,602 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 121 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:09,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 622 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-24 00:49:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17932 states. [2022-02-24 00:49:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17932 to 15967. [2022-02-24 00:49:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15967 states, 15962 states have (on average 1.4604059641648917) internal successors, (23311), 15962 states have internal predecessors, (23311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15967 states to 15967 states and 23315 transitions. [2022-02-24 00:49:09,908 INFO L78 Accepts]: Start accepts. Automaton has 15967 states and 23315 transitions. Word has length 853 [2022-02-24 00:49:09,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:09,908 INFO L470 AbstractCegarLoop]: Abstraction has 15967 states and 23315 transitions. [2022-02-24 00:49:09,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 00:49:09,908 INFO L276 IsEmpty]: Start isEmpty. Operand 15967 states and 23315 transitions. [2022-02-24 00:49:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2022-02-24 00:49:09,981 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:09,981 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:10,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-24 00:49:10,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:49:10,182 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:10,183 INFO L85 PathProgramCache]: Analyzing trace with hash 657738338, now seen corresponding path program 1 times [2022-02-24 00:49:10,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:10,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773340644] [2022-02-24 00:49:10,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:10,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 6959 backedges. 3806 proven. 0 refuted. 0 times theorem prover too weak. 3153 trivial. 0 not checked. [2022-02-24 00:49:10,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:10,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773340644] [2022-02-24 00:49:10,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773340644] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:49:10,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:49:10,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:49:10,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244027433] [2022-02-24 00:49:10,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:10,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:49:10,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:10,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:49:10,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:49:10,564 INFO L87 Difference]: Start difference. First operand 15967 states and 23315 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:12,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:14,371 WARN L534 Checker$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 00:49:16,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:17,674 WARN L534 Checker$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 00:49:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:18,370 INFO L93 Difference]: Finished difference Result 32626 states and 47556 transitions. [2022-02-24 00:49:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 856 [2022-02-24 00:49:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:18,391 INFO L225 Difference]: With dead ends: 32626 [2022-02-24 00:49:18,391 INFO L226 Difference]: Without dead ends: 16687 [2022-02-24 00:49:18,407 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 00:49:18,407 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 24 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:18,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 651 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:49:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16687 states. [2022-02-24 00:49:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16687 to 16387. [2022-02-24 00:49:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16387 states, 16382 states have (on average 1.4559272372115737) internal successors, (23851), 16382 states have internal predecessors, (23851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16387 states to 16387 states and 23855 transitions. [2022-02-24 00:49:18,753 INFO L78 Accepts]: Start accepts. Automaton has 16387 states and 23855 transitions. Word has length 856 [2022-02-24 00:49:18,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:18,753 INFO L470 AbstractCegarLoop]: Abstraction has 16387 states and 23855 transitions. [2022-02-24 00:49:18,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 16387 states and 23855 transitions. [2022-02-24 00:49:18,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2022-02-24 00:49:18,774 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:18,775 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:18,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 00:49:18,775 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1600111913, now seen corresponding path program 1 times [2022-02-24 00:49:18,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:18,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126546860] [2022-02-24 00:49:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:18,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7175 backedges. 3954 proven. 0 refuted. 0 times theorem prover too weak. 3221 trivial. 0 not checked. [2022-02-24 00:49:19,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:19,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126546860] [2022-02-24 00:49:19,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126546860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:49:19,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:49:19,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:49:19,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069800101] [2022-02-24 00:49:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:19,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:49:19,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:19,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:49:19,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:49:19,150 INFO L87 Difference]: Start difference. First operand 16387 states and 23855 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:21,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:23,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:25,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:25,373 INFO L93 Difference]: Finished difference Result 33646 states and 48988 transitions. [2022-02-24 00:49:25,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:25,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 865 [2022-02-24 00:49:25,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:25,394 INFO L225 Difference]: With dead ends: 33646 [2022-02-24 00:49:25,394 INFO L226 Difference]: Without dead ends: 17287 [2022-02-24 00:49:25,403 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 00:49:25,404 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 38 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:25,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 666 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 00:49:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17287 states. [2022-02-24 00:49:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17287 to 16927. [2022-02-24 00:49:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16927 states, 16922 states have (on average 1.4562699444510105) internal successors, (24643), 16922 states have internal predecessors, (24643), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16927 states to 16927 states and 24647 transitions. [2022-02-24 00:49:25,707 INFO L78 Accepts]: Start accepts. Automaton has 16927 states and 24647 transitions. Word has length 865 [2022-02-24 00:49:25,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:25,707 INFO L470 AbstractCegarLoop]: Abstraction has 16927 states and 24647 transitions. [2022-02-24 00:49:25,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 16927 states and 24647 transitions. [2022-02-24 00:49:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2022-02-24 00:49:25,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:25,731 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 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 00:49:25,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 00:49:25,731 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:25,731 INFO L85 PathProgramCache]: Analyzing trace with hash 696541794, now seen corresponding path program 1 times [2022-02-24 00:49:25,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:25,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115222376] [2022-02-24 00:49:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:25,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7271 backedges. 4020 proven. 0 refuted. 0 times theorem prover too weak. 3251 trivial. 0 not checked. [2022-02-24 00:49:26,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:26,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115222376] [2022-02-24 00:49:26,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115222376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:49:26,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:49:26,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:49:26,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11064699] [2022-02-24 00:49:26,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:26,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:49:26,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:49:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:49:26,115 INFO L87 Difference]: Start difference. First operand 16927 states and 24647 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:27,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:29,747 WARN L534 Checker$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 00:49:31,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:49:32,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:32,675 INFO L93 Difference]: Finished difference Result 35444 states and 51612 transitions. [2022-02-24 00:49:32,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:32,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 871 [2022-02-24 00:49:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:32,698 INFO L225 Difference]: With dead ends: 35444 [2022-02-24 00:49:32,698 INFO L226 Difference]: Without dead ends: 18545 [2022-02-24 00:49:32,714 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 00:49:32,714 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 40 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:32,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 671 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-24 00:49:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18545 states. [2022-02-24 00:49:32,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18545 to 17855. [2022-02-24 00:49:33,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17855 states, 17850 states have (on average 1.4568627450980391) internal successors, (26005), 17850 states have internal predecessors, (26005), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:33,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17855 states to 17855 states and 26009 transitions. [2022-02-24 00:49:33,033 INFO L78 Accepts]: Start accepts. Automaton has 17855 states and 26009 transitions. Word has length 871 [2022-02-24 00:49:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:33,033 INFO L470 AbstractCegarLoop]: Abstraction has 17855 states and 26009 transitions. [2022-02-24 00:49:33,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:33,034 INFO L276 IsEmpty]: Start isEmpty. Operand 17855 states and 26009 transitions. [2022-02-24 00:49:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-02-24 00:49:33,056 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:33,057 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:33,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-24 00:49:33,057 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:33,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1874680809, now seen corresponding path program 1 times [2022-02-24 00:49:33,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:33,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042986338] [2022-02-24 00:49:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:33,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 3042 proven. 387 refuted. 0 times theorem prover too weak. 3929 trivial. 0 not checked. [2022-02-24 00:49:33,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:33,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042986338] [2022-02-24 00:49:33,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042986338] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:49:33,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175660727] [2022-02-24 00:49:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:33,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:49:33,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:49:33,771 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 00:49:33,773 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 00:49:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:35,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 3646 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-24 00:49:35,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:49:35,560 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:49:35,561 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 00:49:35,947 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:35,948 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 00:49:36,035 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:49:36,035 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 00:49:36,381 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 00:49:36,383 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 00:49:36,397 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:49:36,397 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 24 treesize of output 33 [2022-02-24 00:49:36,464 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-24 00:49:36,465 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 45 [2022-02-24 00:49:36,538 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:36,538 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 24 treesize of output 23 [2022-02-24 00:49:36,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:49:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 3109 proven. 358 refuted. 0 times theorem prover too weak. 3891 trivial. 0 not checked. [2022-02-24 00:49:36,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:49:37,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-24 00:49:37,077 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 26 treesize of output 20 [2022-02-24 00:49:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 2922 proven. 0 refuted. 0 times theorem prover too weak. 4436 trivial. 0 not checked. [2022-02-24 00:49:38,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175660727] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:49:38,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:49:38,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 9] total 14 [2022-02-24 00:49:38,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843609231] [2022-02-24 00:49:38,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:49:38,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:49:38,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:49:38,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:49:38,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-24 00:49:38,776 INFO L87 Difference]: Start difference. First operand 17855 states and 26009 transitions. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 00:49:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:49:39,339 INFO L93 Difference]: Finished difference Result 37791 states and 55158 transitions. [2022-02-24 00:49:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:49:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 874 [2022-02-24 00:49:39,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:49:39,367 INFO L225 Difference]: With dead ends: 37791 [2022-02-24 00:49:39,367 INFO L226 Difference]: Without dead ends: 19964 [2022-02-24 00:49:39,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1760 GetRequests, 1747 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-02-24 00:49:39,400 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 235 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:49:39,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 781 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 125 Unchecked, 0.1s Time] [2022-02-24 00:49:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19964 states. [2022-02-24 00:49:39,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19964 to 18962. [2022-02-24 00:49:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18962 states, 18957 states have (on average 1.4681647940074907) internal successors, (27832), 18957 states have internal predecessors, (27832), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:49:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18962 states to 18962 states and 27836 transitions. [2022-02-24 00:49:39,758 INFO L78 Accepts]: Start accepts. Automaton has 18962 states and 27836 transitions. Word has length 874 [2022-02-24 00:49:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:49:39,758 INFO L470 AbstractCegarLoop]: Abstraction has 18962 states and 27836 transitions. [2022-02-24 00:49:39,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 00:49:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18962 states and 27836 transitions. [2022-02-24 00:49:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-02-24 00:49:39,782 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:49:39,783 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:39,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-24 00:49:39,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2022-02-24 00:49:40,000 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:49:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:49:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1788450326, now seen corresponding path program 1 times [2022-02-24 00:49:40,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:49:40,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022523157] [2022-02-24 00:49:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:40,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:49:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:49:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 1959 proven. 5070 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-02-24 00:49:44,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:49:44,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022523157] [2022-02-24 00:49:44,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022523157] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:49:44,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792955035] [2022-02-24 00:49:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:49:44,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:49:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:49:44,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-24 00:49:44,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-24 00:49:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:49:46,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 3649 conjuncts, 97 conjunts are in the unsatisfiable core [2022-02-24 00:49:46,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:49:46,137 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:46,138 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 00:49:46,259 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-24 00:49:46,260 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 00:49:46,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-24 00:49:47,218 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 6 treesize of output 5 [2022-02-24 00:49:47,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:47,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-24 00:49:47,328 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-24 00:49:47,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-24 00:49:47,339 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:49:47,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-02-24 00:49:48,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:48,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-24 00:49:48,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:48,081 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-24 00:49:48,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-24 00:49:48,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:48,088 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 00:49:48,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:48,164 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 00:49:48,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:48,169 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 00:49:48,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:48,199 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-24 00:49:48,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-24 00:49:48,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:49,013 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 00:49:49,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-24 00:49:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:49,049 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 00:49:49,049 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 00:49:49,103 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-24 00:49:49,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-24 00:49:50,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 282 [2022-02-24 00:49:50,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:50,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 288 [2022-02-24 00:49:51,057 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-24 00:49:51,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 354 treesize of output 367 [2022-02-24 00:49:57,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,778 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 335 treesize of output 271 [2022-02-24 00:49:57,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,787 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 335 treesize of output 265 [2022-02-24 00:49:57,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:57,824 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-24 00:49:57,824 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 344 treesize of output 329 [2022-02-24 00:49:58,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:58,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 182 [2022-02-24 00:49:58,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:49:58,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 104 [2022-02-24 00:49:58,230 INFO L356 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-02-24 00:49:58,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 149 [2022-02-24 00:49:58,366 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-24 00:49:58,366 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 00:49:58,543 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:49:58,543 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 00:49:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 2322 proven. 666 refuted. 0 times theorem prover too weak. 4370 trivial. 0 not checked. [2022-02-24 00:49:58,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:50:01,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:01,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-24 00:50:01,950 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 268 treesize of output 214 [2022-02-24 00:50:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 2453 proven. 141 refuted. 0 times theorem prover too weak. 4764 trivial. 0 not checked. [2022-02-24 00:50:03,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792955035] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-24 00:50:03,110 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-24 00:50:03,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 20, 13] total 53 [2022-02-24 00:50:03,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085081779] [2022-02-24 00:50:03,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-24 00:50:03,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-24 00:50:03,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:50:03,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-24 00:50:03,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2425, Unknown=0, NotChecked=0, Total=2756 [2022-02-24 00:50:03,114 INFO L87 Difference]: Start difference. First operand 18962 states and 27836 transitions. Second operand has 53 states, 53 states have (on average 19.39622641509434) internal successors, (1028), 52 states have internal predecessors, (1028), 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 00:50:04,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:06,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:08,267 WARN L534 Checker$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 00:50:11,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:13,241 WARN L534 Checker$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 00:50:16,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:18,232 WARN L534 Checker$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 00:50:20,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:22,281 WARN L534 Checker$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 00:50:23,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:25,418 WARN L534 Checker$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 00:50:27,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:50:28,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []