/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 09:57:12,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 09:57:12,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 09:57:12,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 09:57:12,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 09:57:12,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 09:57:12,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 09:57:12,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 09:57:12,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 09:57:12,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 09:57:12,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 09:57:12,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 09:57:12,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 09:57:12,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 09:57:12,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 09:57:12,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 09:57:12,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 09:57:12,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 09:57:12,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 09:57:12,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 09:57:12,665 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 09:57:12,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 09:57:12,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 09:57:12,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 09:57:12,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 09:57:12,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 09:57:12,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 09:57:12,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 09:57:12,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 09:57:12,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 09:57:12,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-05 09:57:12,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 09:57:12,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 09:57:12,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 09:57:12,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 09:57:12,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 09:57:12,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 09:57:12,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 09:57:12,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 09:57:12,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 09:57:12,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 09:57:12,702 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 09:57:12,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 09:57:12,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 09:57:12,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 09:57:12,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:57:12,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 09:57:12,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 09:57:12,705 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 09:57:12,705 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 09:57:12,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 09:57:12,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 09:57:12,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 09:57:12,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 09:57:12,939 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 09:57:12,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-04-05 09:57:12,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf952cdf/36de326401d74aa0b391ab988d8a35d0/FLAGe6d7c5ce9 [2022-04-05 09:57:13,398 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 09:57:13,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-04-05 09:57:13,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf952cdf/36de326401d74aa0b391ab988d8a35d0/FLAGe6d7c5ce9 [2022-04-05 09:57:13,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf952cdf/36de326401d74aa0b391ab988d8a35d0 [2022-04-05 09:57:13,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 09:57:13,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 09:57:13,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 09:57:13,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 09:57:13,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 09:57:13,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:57:13" (1/1) ... [2022-04-05 09:57:13,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9e4165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:13, skipping insertion in model container [2022-04-05 09:57:13,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:57:13" (1/1) ... [2022-04-05 09:57:13,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 09:57:13,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 09:57:14,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-04-05 09:57:14,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:57:14,096 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 09:57:14,172 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-04-05 09:57:14,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:57:14,192 INFO L208 MainTranslator]: Completed translation [2022-04-05 09:57:14,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14 WrapperNode [2022-04-05 09:57:14,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 09:57:14,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 09:57:14,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 09:57:14,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 09:57:14,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 09:57:14,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 09:57:14,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 09:57:14,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 09:57:14,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (1/1) ... [2022-04-05 09:57:14,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:57:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:57:14,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 09:57:14,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 09:57:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 09:57:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 09:57:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 09:57:14,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 09:57:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 09:57:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 09:57:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 09:57:14,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 09:57:14,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 09:57:14,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 09:57:14,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 09:57:14,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 09:57:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 09:57:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 09:57:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 09:57:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 09:57:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 09:57:14,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 09:57:14,509 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 09:57:14,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 09:57:15,349 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 09:57:15,752 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 09:57:15,752 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 09:57:15,762 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 09:57:15,771 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 09:57:15,771 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 09:57:15,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:57:15 BoogieIcfgContainer [2022-04-05 09:57:15,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 09:57:15,773 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 09:57:15,773 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 09:57:15,774 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 09:57:15,776 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:57:15" (1/1) ... [2022-04-05 09:57:15,777 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 09:57:15,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:57:15 BasicIcfg [2022-04-05 09:57:15,830 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 09:57:15,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 09:57:15,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 09:57:15,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 09:57:15,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 09:57:13" (1/4) ... [2022-04-05 09:57:15,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0a2f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:57:15, skipping insertion in model container [2022-04-05 09:57:15,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:57:14" (2/4) ... [2022-04-05 09:57:15,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0a2f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:57:15, skipping insertion in model container [2022-04-05 09:57:15,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:57:15" (3/4) ... [2022-04-05 09:57:15,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0a2f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 09:57:15, skipping insertion in model container [2022-04-05 09:57:15,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:57:15" (4/4) ... [2022-04-05 09:57:15,839 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cqvasr [2022-04-05 09:57:15,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 09:57:15,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 09:57:15,883 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 09:57:15,888 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 09:57:15,889 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 09:57:15,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 09:57:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 09:57:15,910 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:15,911 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:15,911 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-04-05 09:57:15,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:15,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414880265] [2022-04-05 09:57:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:15,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:16,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:16,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414880265] [2022-04-05 09:57:16,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414880265] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:16,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:16,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:16,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811410721] [2022-04-05 09:57:16,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:16,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:16,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:16,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:16,369 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:19,574 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 [] [2022-04-05 09:57:20,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:20,551 INFO L93 Difference]: Finished difference Result 346 states and 584 transitions. [2022-04-05 09:57:20,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:20,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-05 09:57:20,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:20,560 INFO L225 Difference]: With dead ends: 346 [2022-04-05 09:57:20,561 INFO L226 Difference]: Without dead ends: 176 [2022-04-05 09:57:20,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:20,570 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 34 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:20,571 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 643 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-05 09:57:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-04-05 09:57:20,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2022-04-05 09:57:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.5714285714285714) internal successors, (242), 154 states have internal predecessors, (242), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:20,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 246 transitions. [2022-04-05 09:57:20,622 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 246 transitions. Word has length 50 [2022-04-05 09:57:20,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:20,622 INFO L478 AbstractCegarLoop]: Abstraction has 159 states and 246 transitions. [2022-04-05 09:57:20,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:20,622 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 246 transitions. [2022-04-05 09:57:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:57:20,630 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:20,630 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:20,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 09:57:20,631 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:20,633 INFO L85 PathProgramCache]: Analyzing trace with hash 630988424, now seen corresponding path program 1 times [2022-04-05 09:57:20,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:20,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393401447] [2022-04-05 09:57:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:20,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:20,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:20,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393401447] [2022-04-05 09:57:20,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393401447] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:20,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:20,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:20,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316548416] [2022-04-05 09:57:20,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:20,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:20,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:20,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:20,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:20,857 INFO L87 Difference]: Start difference. First operand 159 states and 246 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:23,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:24,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:26,526 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 [] [2022-04-05 09:57:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:27,223 INFO L93 Difference]: Finished difference Result 416 states and 650 transitions. [2022-04-05 09:57:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:27,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-05 09:57:27,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:27,226 INFO L225 Difference]: With dead ends: 416 [2022-04-05 09:57:27,226 INFO L226 Difference]: Without dead ends: 283 [2022-04-05 09:57:27,227 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:27,233 INFO L913 BasicCegarLoop]: 285 mSDtfsCounter, 157 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:27,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 690 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 646 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 09:57:27,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-04-05 09:57:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 175. [2022-04-05 09:57:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5705882352941176) internal successors, (267), 170 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 271 transitions. [2022-04-05 09:57:27,243 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 271 transitions. Word has length 63 [2022-04-05 09:57:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:27,243 INFO L478 AbstractCegarLoop]: Abstraction has 175 states and 271 transitions. [2022-04-05 09:57:27,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 271 transitions. [2022-04-05 09:57:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:57:27,244 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:27,244 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:27,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 09:57:27,244 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1467054500, now seen corresponding path program 1 times [2022-04-05 09:57:27,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:27,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277743350] [2022-04-05 09:57:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277743350] [2022-04-05 09:57:27,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277743350] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:27,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:27,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:27,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928127790] [2022-04-05 09:57:27,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:27,382 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:27,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:27,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:27,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:27,383 INFO L87 Difference]: Start difference. First operand 175 states and 271 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:28,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:30,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:32,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:33,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:33,062 INFO L93 Difference]: Finished difference Result 340 states and 525 transitions. [2022-04-05 09:57:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:33,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:57:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:33,064 INFO L225 Difference]: With dead ends: 340 [2022-04-05 09:57:33,064 INFO L226 Difference]: Without dead ends: 191 [2022-04-05 09:57:33,065 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:33,066 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:33,066 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:57:33,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-04-05 09:57:33,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-04-05 09:57:33,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5647058823529412) internal successors, (266), 170 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 270 transitions. [2022-04-05 09:57:33,076 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 270 transitions. Word has length 64 [2022-04-05 09:57:33,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:33,076 INFO L478 AbstractCegarLoop]: Abstraction has 175 states and 270 transitions. [2022-04-05 09:57:33,076 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:33,076 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 270 transitions. [2022-04-05 09:57:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:57:33,077 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:33,077 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:33,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 09:57:33,077 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:33,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash 112607684, now seen corresponding path program 1 times [2022-04-05 09:57:33,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:33,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763266899] [2022-04-05 09:57:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:33,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:33,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:33,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763266899] [2022-04-05 09:57:33,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763266899] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:33,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:33,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170533348] [2022-04-05 09:57:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:33,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:33,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:33,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:33,219 INFO L87 Difference]: Start difference. First operand 175 states and 270 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:34,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:36,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:38,955 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 [] [2022-04-05 09:57:39,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:39,341 INFO L93 Difference]: Finished difference Result 340 states and 524 transitions. [2022-04-05 09:57:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:39,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:57:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:39,342 INFO L225 Difference]: With dead ends: 340 [2022-04-05 09:57:39,342 INFO L226 Difference]: Without dead ends: 191 [2022-04-05 09:57:39,347 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:39,350 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 26 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:39,352 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 09:57:39,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-04-05 09:57:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-04-05 09:57:39,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5588235294117647) internal successors, (265), 170 states have internal predecessors, (265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:39,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 269 transitions. [2022-04-05 09:57:39,361 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 269 transitions. Word has length 64 [2022-04-05 09:57:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:39,362 INFO L478 AbstractCegarLoop]: Abstraction has 175 states and 269 transitions. [2022-04-05 09:57:39,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:39,362 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 269 transitions. [2022-04-05 09:57:39,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:57:39,363 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:39,367 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:39,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 09:57:39,367 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:39,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2041150756, now seen corresponding path program 1 times [2022-04-05 09:57:39,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:39,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40925724] [2022-04-05 09:57:39,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:39,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:39,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:39,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:39,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40925724] [2022-04-05 09:57:39,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40925724] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:39,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:39,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:39,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893398258] [2022-04-05 09:57:39,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:39,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:39,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:39,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:39,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:39,505 INFO L87 Difference]: Start difference. First operand 175 states and 269 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:40,672 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 [] [2022-04-05 09:57:42,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:44,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:45,251 INFO L93 Difference]: Finished difference Result 447 states and 698 transitions. [2022-04-05 09:57:45,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:45,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:57:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:45,253 INFO L225 Difference]: With dead ends: 447 [2022-04-05 09:57:45,253 INFO L226 Difference]: Without dead ends: 298 [2022-04-05 09:57:45,254 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:45,254 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 155 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:45,254 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 380 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:57:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-04-05 09:57:45,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 193. [2022-04-05 09:57:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5638297872340425) internal successors, (294), 188 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:45,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2022-04-05 09:57:45,261 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 64 [2022-04-05 09:57:45,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:45,261 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2022-04-05 09:57:45,261 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:45,261 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2022-04-05 09:57:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:57:45,262 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:45,262 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:45,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 09:57:45,262 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:45,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:45,263 INFO L85 PathProgramCache]: Analyzing trace with hash -944554492, now seen corresponding path program 1 times [2022-04-05 09:57:45,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:45,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334711812] [2022-04-05 09:57:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:45,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:45,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:45,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334711812] [2022-04-05 09:57:45,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334711812] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:45,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:45,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:45,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785263791] [2022-04-05 09:57:45,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:45,386 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:45,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:45,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:45,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:45,387 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:47,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:49,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:51,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:52,232 INFO L93 Difference]: Finished difference Result 373 states and 579 transitions. [2022-04-05 09:57:52,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:52,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:57:52,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:52,233 INFO L225 Difference]: With dead ends: 373 [2022-04-05 09:57:52,233 INFO L226 Difference]: Without dead ends: 206 [2022-04-05 09:57:52,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:52,234 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:52,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-04-05 09:57:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-04-05 09:57:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-04-05 09:57:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5585106382978724) internal successors, (293), 188 states have internal predecessors, (293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 297 transitions. [2022-04-05 09:57:52,240 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 297 transitions. Word has length 64 [2022-04-05 09:57:52,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:52,240 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 297 transitions. [2022-04-05 09:57:52,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:52,240 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 297 transitions. [2022-04-05 09:57:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:57:52,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:52,241 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:52,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 09:57:52,241 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:52,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1808385160, now seen corresponding path program 1 times [2022-04-05 09:57:52,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:52,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23106061] [2022-04-05 09:57:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:52,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:52,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:52,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23106061] [2022-04-05 09:57:52,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23106061] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:52,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:52,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373789384] [2022-04-05 09:57:52,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:52,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:52,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:52,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:52,340 INFO L87 Difference]: Start difference. First operand 193 states and 297 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:54,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:56,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:58,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:57:58,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:57:58,949 INFO L93 Difference]: Finished difference Result 373 states and 578 transitions. [2022-04-05 09:57:58,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:57:58,949 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 [2022-04-05 09:57:58,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:57:58,950 INFO L225 Difference]: With dead ends: 373 [2022-04-05 09:57:58,950 INFO L226 Difference]: Without dead ends: 206 [2022-04-05 09:57:58,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:57:58,951 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 22 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:57:58,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 09:57:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-04-05 09:57:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-04-05 09:57:58,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.553191489361702) internal successors, (292), 188 states have internal predecessors, (292), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2022-04-05 09:57:58,956 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 65 [2022-04-05 09:57:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:57:58,956 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2022-04-05 09:57:58,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:57:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2022-04-05 09:57:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 09:57:58,957 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:57:58,957 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:57:58,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 09:57:58,957 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:57:58,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:57:58,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2131702600, now seen corresponding path program 1 times [2022-04-05 09:57:58,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:57:58,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191246653] [2022-04-05 09:57:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:57:58,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:57:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:57:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:57:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:57:59,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:57:59,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191246653] [2022-04-05 09:57:59,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191246653] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:57:59,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:57:59,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:57:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188356768] [2022-04-05 09:57:59,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:57:59,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:57:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:57:59,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:57:59,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:57:59,066 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:01,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:03,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:04,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:04,695 INFO L93 Difference]: Finished difference Result 465 states and 724 transitions. [2022-04-05 09:58:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:04,696 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 [2022-04-05 09:58:04,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:04,697 INFO L225 Difference]: With dead ends: 465 [2022-04-05 09:58:04,697 INFO L226 Difference]: Without dead ends: 298 [2022-04-05 09:58:04,697 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:04,698 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 158 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:04,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 380 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 09:58:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-04-05 09:58:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 193. [2022-04-05 09:58:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5372340425531914) internal successors, (289), 188 states have internal predecessors, (289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 293 transitions. [2022-04-05 09:58:04,704 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 293 transitions. Word has length 66 [2022-04-05 09:58:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:04,704 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 293 transitions. [2022-04-05 09:58:04,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:04,704 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 293 transitions. [2022-04-05 09:58:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 09:58:04,705 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:04,706 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:04,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 09:58:04,706 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:04,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:04,706 INFO L85 PathProgramCache]: Analyzing trace with hash 887492427, now seen corresponding path program 1 times [2022-04-05 09:58:04,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:04,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918541424] [2022-04-05 09:58:04,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:04,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:58:04,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:04,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918541424] [2022-04-05 09:58:04,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918541424] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:04,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:04,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:04,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084881708] [2022-04-05 09:58:04,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:04,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:04,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:04,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:04,814 INFO L87 Difference]: Start difference. First operand 193 states and 293 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:07,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:08,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:09,174 INFO L93 Difference]: Finished difference Result 363 states and 559 transitions. [2022-04-05 09:58:09,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:09,175 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 [2022-04-05 09:58:09,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:09,176 INFO L225 Difference]: With dead ends: 363 [2022-04-05 09:58:09,176 INFO L226 Difference]: Without dead ends: 196 [2022-04-05 09:58:09,176 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:09,177 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:09,177 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 09:58:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-04-05 09:58:09,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-04-05 09:58:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5319148936170213) internal successors, (288), 188 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:09,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 292 transitions. [2022-04-05 09:58:09,182 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 292 transitions. Word has length 67 [2022-04-05 09:58:09,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:09,182 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 292 transitions. [2022-04-05 09:58:09,183 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 292 transitions. [2022-04-05 09:58:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 09:58:09,183 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:09,184 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:09,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 09:58:09,184 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:09,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:09,185 INFO L85 PathProgramCache]: Analyzing trace with hash 545041914, now seen corresponding path program 1 times [2022-04-05 09:58:09,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:09,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117712612] [2022-04-05 09:58:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:09,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:09,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:58:09,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:09,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117712612] [2022-04-05 09:58:09,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117712612] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:09,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:09,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:09,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097737311] [2022-04-05 09:58:09,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:09,302 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:09,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:09,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:09,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:09,303 INFO L87 Difference]: Start difference. First operand 193 states and 292 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:11,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:11,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:11,782 INFO L93 Difference]: Finished difference Result 484 states and 747 transitions. [2022-04-05 09:58:11,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:11,782 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 [2022-04-05 09:58:11,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:11,783 INFO L225 Difference]: With dead ends: 484 [2022-04-05 09:58:11,783 INFO L226 Difference]: Without dead ends: 317 [2022-04-05 09:58:11,784 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:11,784 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:11,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 382 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 09:58:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-04-05 09:58:11,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 233. [2022-04-05 09:58:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.5701754385964912) internal successors, (358), 228 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 362 transitions. [2022-04-05 09:58:11,789 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 362 transitions. Word has length 67 [2022-04-05 09:58:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:11,790 INFO L478 AbstractCegarLoop]: Abstraction has 233 states and 362 transitions. [2022-04-05 09:58:11,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 362 transitions. [2022-04-05 09:58:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 09:58:11,790 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:11,791 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:11,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 09:58:11,791 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-04-05 09:58:11,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:11,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575414089] [2022-04-05 09:58:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:11,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:58:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:11,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575414089] [2022-04-05 09:58:11,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575414089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:11,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:11,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:11,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516950937] [2022-04-05 09:58:11,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:11,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:11,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:11,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:11,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:11,913 INFO L87 Difference]: Start difference. First operand 233 states and 362 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:14,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:15,573 INFO L93 Difference]: Finished difference Result 545 states and 858 transitions. [2022-04-05 09:58:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:15,574 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 [2022-04-05 09:58:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:15,575 INFO L225 Difference]: With dead ends: 545 [2022-04-05 09:58:15,575 INFO L226 Difference]: Without dead ends: 338 [2022-04-05 09:58:15,576 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:15,576 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 132 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:15,576 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 09:58:15,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-04-05 09:58:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 255. [2022-04-05 09:58:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.604) internal successors, (401), 250 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 405 transitions. [2022-04-05 09:58:15,581 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 405 transitions. Word has length 68 [2022-04-05 09:58:15,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:15,582 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 405 transitions. [2022-04-05 09:58:15,582 INFO L479 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) [2022-04-05 09:58:15,582 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 405 transitions. [2022-04-05 09:58:15,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-04-05 09:58:15,583 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:15,583 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:15,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 09:58:15,583 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:15,584 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-04-05 09:58:15,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:15,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469105876] [2022-04-05 09:58:15,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:15,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-05 09:58:15,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:15,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469105876] [2022-04-05 09:58:15,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469105876] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:15,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:15,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817782212] [2022-04-05 09:58:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:15,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:15,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:15,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:15,694 INFO L87 Difference]: Start difference. First operand 255 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:18,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:20,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:22,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:22,626 INFO L93 Difference]: Finished difference Result 526 states and 842 transitions. [2022-04-05 09:58:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-04-05 09:58:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:22,627 INFO L225 Difference]: With dead ends: 526 [2022-04-05 09:58:22,627 INFO L226 Difference]: Without dead ends: 297 [2022-04-05 09:58:22,628 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:22,628 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:22,629 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 405 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:58:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-04-05 09:58:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 277. [2022-04-05 09:58:22,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.6029411764705883) internal successors, (436), 272 states have internal predecessors, (436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:22,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 440 transitions. [2022-04-05 09:58:22,635 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 440 transitions. Word has length 96 [2022-04-05 09:58:22,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:22,635 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 440 transitions. [2022-04-05 09:58:22,635 INFO L479 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) [2022-04-05 09:58:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 440 transitions. [2022-04-05 09:58:22,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:58:22,636 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:22,636 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:22,636 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 09:58:22,637 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-04-05 09:58:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:22,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166613535] [2022-04-05 09:58:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:22,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 09:58:22,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:22,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166613535] [2022-04-05 09:58:22,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166613535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:22,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:22,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488390538] [2022-04-05 09:58:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:22,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:22,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:22,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:22,726 INFO L87 Difference]: Start difference. First operand 277 states and 440 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:24,637 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 [] [2022-04-05 09:58:26,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:27,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:29,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:30,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:30,118 INFO L93 Difference]: Finished difference Result 541 states and 866 transitions. [2022-04-05 09:58:30,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:30,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 09:58:30,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:30,119 INFO L225 Difference]: With dead ends: 541 [2022-04-05 09:58:30,119 INFO L226 Difference]: Without dead ends: 290 [2022-04-05 09:58:30,120 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:30,120 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 21 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:30,120 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 612 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-04-05 09:58:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-04-05 09:58:30,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-04-05 09:58:30,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.599264705882353) internal successors, (435), 272 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:30,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 439 transitions. [2022-04-05 09:58:30,125 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 439 transitions. Word has length 110 [2022-04-05 09:58:30,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:30,125 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 439 transitions. [2022-04-05 09:58:30,125 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:30,125 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 439 transitions. [2022-04-05 09:58:30,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 09:58:30,126 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:30,126 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:30,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 09:58:30,126 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:30,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-04-05 09:58:30,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:30,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681440652] [2022-04-05 09:58:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:30,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:30,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:30,230 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:58:30,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:30,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681440652] [2022-04-05 09:58:30,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681440652] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:30,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:30,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:30,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497775589] [2022-04-05 09:58:30,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:30,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:30,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:30,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:30,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:30,232 INFO L87 Difference]: Start difference. First operand 277 states and 439 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:32,071 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 [] [2022-04-05 09:58:34,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:36,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:36,664 INFO L93 Difference]: Finished difference Result 546 states and 872 transitions. [2022-04-05 09:58:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:36,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 09:58:36,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:36,665 INFO L225 Difference]: With dead ends: 546 [2022-04-05 09:58:36,665 INFO L226 Difference]: Without dead ends: 295 [2022-04-05 09:58:36,666 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:36,666 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 35 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:36,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-05 09:58:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-04-05 09:58:36,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 277. [2022-04-05 09:58:36,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5955882352941178) internal successors, (434), 272 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:36,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2022-04-05 09:58:36,672 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 110 [2022-04-05 09:58:36,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:36,672 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2022-04-05 09:58:36,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:36,672 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2022-04-05 09:58:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-05 09:58:36,673 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:36,673 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:36,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 09:58:36,673 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-04-05 09:58:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:36,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593848883] [2022-04-05 09:58:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:36,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:36,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:36,786 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-05 09:58:36,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:36,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593848883] [2022-04-05 09:58:36,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593848883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:36,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:36,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 09:58:36,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482712731] [2022-04-05 09:58:36,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:36,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 09:58:36,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:36,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 09:58:36,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:36,788 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:39,717 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 [] [2022-04-05 09:58:40,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:40,589 INFO L93 Difference]: Finished difference Result 537 states and 858 transitions. [2022-04-05 09:58:40,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 09:58:40,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-05 09:58:40,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:40,590 INFO L225 Difference]: With dead ends: 537 [2022-04-05 09:58:40,590 INFO L226 Difference]: Without dead ends: 286 [2022-04-05 09:58:40,591 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:58:40,591 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:40,591 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 09:58:40,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-04-05 09:58:40,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-04-05 09:58:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.583629893238434) internal successors, (445), 281 states have internal predecessors, (445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:40,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 449 transitions. [2022-04-05 09:58:40,597 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 449 transitions. Word has length 111 [2022-04-05 09:58:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:40,597 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 449 transitions. [2022-04-05 09:58:40,597 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 449 transitions. [2022-04-05 09:58:40,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-05 09:58:40,598 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:40,598 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:40,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 09:58:40,598 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:40,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:40,598 INFO L85 PathProgramCache]: Analyzing trace with hash -137183387, now seen corresponding path program 1 times [2022-04-05 09:58:40,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:40,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972070780] [2022-04-05 09:58:40,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:40,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:58:40,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:40,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972070780] [2022-04-05 09:58:40,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972070780] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:40,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:40,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:40,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445855208] [2022-04-05 09:58:40,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:40,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:40,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:40,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:40,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:40,720 INFO L87 Difference]: Start difference. First operand 286 states and 449 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:43,267 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 [] [2022-04-05 09:58:45,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:47,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:47,672 INFO L93 Difference]: Finished difference Result 573 states and 903 transitions. [2022-04-05 09:58:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:47,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-05 09:58:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:47,674 INFO L225 Difference]: With dead ends: 573 [2022-04-05 09:58:47,674 INFO L226 Difference]: Without dead ends: 313 [2022-04-05 09:58:47,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:47,675 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:47,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:58:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-04-05 09:58:47,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-04-05 09:58:47,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5800711743772242) internal successors, (444), 281 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 448 transitions. [2022-04-05 09:58:47,680 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 448 transitions. Word has length 111 [2022-04-05 09:58:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:47,680 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 448 transitions. [2022-04-05 09:58:47,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 448 transitions. [2022-04-05 09:58:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-04-05 09:58:47,681 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:47,681 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:47,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 09:58:47,681 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:47,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:47,682 INFO L85 PathProgramCache]: Analyzing trace with hash -488799095, now seen corresponding path program 1 times [2022-04-05 09:58:47,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:47,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250425522] [2022-04-05 09:58:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:47,769 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:58:47,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:47,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250425522] [2022-04-05 09:58:47,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250425522] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:47,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:47,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67358739] [2022-04-05 09:58:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:47,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:47,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:47,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:47,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:47,771 INFO L87 Difference]: Start difference. First operand 286 states and 448 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:49,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:51,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:53,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:55,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:58:55,818 INFO L93 Difference]: Finished difference Result 573 states and 901 transitions. [2022-04-05 09:58:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:58:55,818 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 [2022-04-05 09:58:55,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:58:55,820 INFO L225 Difference]: With dead ends: 573 [2022-04-05 09:58:55,820 INFO L226 Difference]: Without dead ends: 313 [2022-04-05 09:58:55,820 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:58:55,821 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 37 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:58:55,821 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-04-05 09:58:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-04-05 09:58:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-04-05 09:58:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5765124555160142) internal successors, (443), 281 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 447 transitions. [2022-04-05 09:58:55,826 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 447 transitions. Word has length 112 [2022-04-05 09:58:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:58:55,826 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 447 transitions. [2022-04-05 09:58:55,826 INFO L479 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) [2022-04-05 09:58:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 447 transitions. [2022-04-05 09:58:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-05 09:58:55,827 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:58:55,827 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:58:55,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 09:58:55,827 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:58:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:58:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-04-05 09:58:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:58:55,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109567741] [2022-04-05 09:58:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:58:55,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:58:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:58:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:58:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 09:58:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:58:55,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109567741] [2022-04-05 09:58:55,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109567741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:58:55,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:58:55,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:58:55,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433638335] [2022-04-05 09:58:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:58:55,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:58:55,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:58:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:58:55,917 INFO L87 Difference]: Start difference. First operand 286 states and 447 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:58,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:00,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:00,552 INFO L93 Difference]: Finished difference Result 563 states and 886 transitions. [2022-04-05 09:59:00,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:00,553 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 [2022-04-05 09:59:00,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:00,554 INFO L225 Difference]: With dead ends: 563 [2022-04-05 09:59:00,554 INFO L226 Difference]: Without dead ends: 303 [2022-04-05 09:59:00,554 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:00,555 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 33 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:00,555 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 547 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 09:59:00,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-04-05 09:59:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 286. [2022-04-05 09:59:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5729537366548043) internal successors, (442), 281 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 446 transitions. [2022-04-05 09:59:00,560 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 446 transitions. Word has length 114 [2022-04-05 09:59:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:00,560 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 446 transitions. [2022-04-05 09:59:00,561 INFO L479 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) [2022-04-05 09:59:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 446 transitions. [2022-04-05 09:59:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 09:59:00,561 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:00,561 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:00,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 09:59:00,562 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:00,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-04-05 09:59:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:00,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830147838] [2022-04-05 09:59:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:00,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:00,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830147838] [2022-04-05 09:59:00,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830147838] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:00,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:00,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:00,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955904950] [2022-04-05 09:59:00,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:00,660 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:00,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:00,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:00,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:00,660 INFO L87 Difference]: Start difference. First operand 286 states and 446 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:02,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:04,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:06,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:06,557 INFO L93 Difference]: Finished difference Result 655 states and 1027 transitions. [2022-04-05 09:59:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-05 09:59:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:06,559 INFO L225 Difference]: With dead ends: 655 [2022-04-05 09:59:06,559 INFO L226 Difference]: Without dead ends: 395 [2022-04-05 09:59:06,559 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:06,560 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 97 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:06,560 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 545 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:59:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-04-05 09:59:06,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 320. [2022-04-05 09:59:06,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.584126984126984) internal successors, (499), 315 states have internal predecessors, (499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 503 transitions. [2022-04-05 09:59:06,566 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 503 transitions. Word has length 118 [2022-04-05 09:59:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:06,566 INFO L478 AbstractCegarLoop]: Abstraction has 320 states and 503 transitions. [2022-04-05 09:59:06,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 503 transitions. [2022-04-05 09:59:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 09:59:06,567 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:06,568 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:06,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 09:59:06,568 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:06,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1710383652, now seen corresponding path program 1 times [2022-04-05 09:59:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:06,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776248008] [2022-04-05 09:59:06,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:06,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:06,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:06,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776248008] [2022-04-05 09:59:06,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776248008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:06,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:06,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:06,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907391507] [2022-04-05 09:59:06,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:06,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:06,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:06,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:06,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:06,678 INFO L87 Difference]: Start difference. First operand 320 states and 503 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:09,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:10,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:10,211 INFO L93 Difference]: Finished difference Result 782 states and 1243 transitions. [2022-04-05 09:59:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:10,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-05 09:59:10,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:10,213 INFO L225 Difference]: With dead ends: 782 [2022-04-05 09:59:10,213 INFO L226 Difference]: Without dead ends: 488 [2022-04-05 09:59:10,214 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:10,214 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 138 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:10,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-05 09:59:10,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-04-05 09:59:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 350. [2022-04-05 09:59:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.6) internal successors, (552), 345 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 556 transitions. [2022-04-05 09:59:10,221 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 556 transitions. Word has length 118 [2022-04-05 09:59:10,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:10,221 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 556 transitions. [2022-04-05 09:59:10,221 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 556 transitions. [2022-04-05 09:59:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 09:59:10,222 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:10,222 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:10,222 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 09:59:10,222 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-04-05 09:59:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:10,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313135356] [2022-04-05 09:59:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 09:59:10,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:10,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313135356] [2022-04-05 09:59:10,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313135356] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:10,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:10,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:10,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924894922] [2022-04-05 09:59:10,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:10,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:10,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:10,309 INFO L87 Difference]: Start difference. First operand 350 states and 556 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:12,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:13,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:13,816 INFO L93 Difference]: Finished difference Result 756 states and 1201 transitions. [2022-04-05 09:59:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:13,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 09:59:13,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:13,818 INFO L225 Difference]: With dead ends: 756 [2022-04-05 09:59:13,818 INFO L226 Difference]: Without dead ends: 432 [2022-04-05 09:59:13,819 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:13,819 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 160 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:13,819 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 382 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-05 09:59:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-04-05 09:59:13,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 350. [2022-04-05 09:59:13,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5826086956521739) internal successors, (546), 345 states have internal predecessors, (546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 550 transitions. [2022-04-05 09:59:13,825 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 550 transitions. Word has length 123 [2022-04-05 09:59:13,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:13,825 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 550 transitions. [2022-04-05 09:59:13,825 INFO L479 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) [2022-04-05 09:59:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 550 transitions. [2022-04-05 09:59:13,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 09:59:13,826 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:13,826 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:13,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 09:59:13,826 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:13,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:13,827 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-04-05 09:59:13,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:13,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767889587] [2022-04-05 09:59:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:13,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:13,911 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:13,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:13,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767889587] [2022-04-05 09:59:13,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767889587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:13,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:13,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:13,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863116688] [2022-04-05 09:59:13,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:13,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:13,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:13,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:13,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:13,912 INFO L87 Difference]: Start difference. First operand 350 states and 550 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:16,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:18,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:20,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:20,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:20,634 INFO L93 Difference]: Finished difference Result 796 states and 1257 transitions. [2022-04-05 09:59:20,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:20,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-05 09:59:20,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:20,637 INFO L225 Difference]: With dead ends: 796 [2022-04-05 09:59:20,637 INFO L226 Difference]: Without dead ends: 472 [2022-04-05 09:59:20,638 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:20,638 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:20,639 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 382 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:59:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-04-05 09:59:20,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 387. [2022-04-05 09:59:20,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5916230366492146) internal successors, (608), 382 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:20,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 612 transitions. [2022-04-05 09:59:20,645 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 612 transitions. Word has length 124 [2022-04-05 09:59:20,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:20,645 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 612 transitions. [2022-04-05 09:59:20,645 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 612 transitions. [2022-04-05 09:59:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 09:59:20,646 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:20,646 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:20,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 09:59:20,646 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:20,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:20,646 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-04-05 09:59:20,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:20,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488251925] [2022-04-05 09:59:20,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:20,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:20,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:20,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:20,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488251925] [2022-04-05 09:59:20,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488251925] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:20,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:20,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:20,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587516095] [2022-04-05 09:59:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:20,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:20,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:20,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:20,783 INFO L87 Difference]: Start difference. First operand 387 states and 612 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:23,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:25,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:26,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:27,251 INFO L93 Difference]: Finished difference Result 830 states and 1313 transitions. [2022-04-05 09:59:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:27,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 09:59:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:27,253 INFO L225 Difference]: With dead ends: 830 [2022-04-05 09:59:27,253 INFO L226 Difference]: Without dead ends: 469 [2022-04-05 09:59:27,253 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:27,254 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 132 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:27,254 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 382 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-05 09:59:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-04-05 09:59:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 387. [2022-04-05 09:59:27,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5863874345549738) internal successors, (606), 382 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 610 transitions. [2022-04-05 09:59:27,265 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 610 transitions. Word has length 125 [2022-04-05 09:59:27,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:27,265 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 610 transitions. [2022-04-05 09:59:27,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 610 transitions. [2022-04-05 09:59:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:59:27,266 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:27,266 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:27,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 09:59:27,266 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-04-05 09:59:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:27,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990190049] [2022-04-05 09:59:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:27,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:27,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:27,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:27,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990190049] [2022-04-05 09:59:27,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990190049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:27,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:27,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268051220] [2022-04-05 09:59:27,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:27,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:27,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:27,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:27,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:27,364 INFO L87 Difference]: Start difference. First operand 387 states and 610 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:29,823 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 [] [2022-04-05 09:59:31,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:33,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:34,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:34,275 INFO L93 Difference]: Finished difference Result 837 states and 1324 transitions. [2022-04-05 09:59:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:34,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:59:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:34,277 INFO L225 Difference]: With dead ends: 837 [2022-04-05 09:59:34,277 INFO L226 Difference]: Without dead ends: 476 [2022-04-05 09:59:34,278 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:34,278 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 71 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:34,278 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 515 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:59:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-04-05 09:59:34,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 430. [2022-04-05 09:59:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.588235294117647) internal successors, (675), 425 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 679 transitions. [2022-04-05 09:59:34,285 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 679 transitions. Word has length 132 [2022-04-05 09:59:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:34,285 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 679 transitions. [2022-04-05 09:59:34,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 679 transitions. [2022-04-05 09:59:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:59:34,286 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:34,286 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:34,286 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 09:59:34,286 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:34,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1447401699, now seen corresponding path program 1 times [2022-04-05 09:59:34,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:34,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511815211] [2022-04-05 09:59:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:59:34,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:34,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511815211] [2022-04-05 09:59:34,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511815211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:34,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:34,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:34,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637254791] [2022-04-05 09:59:34,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:34,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:34,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:34,376 INFO L87 Difference]: Start difference. First operand 430 states and 679 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:37,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:39,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:40,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:40,052 INFO L93 Difference]: Finished difference Result 916 states and 1447 transitions. [2022-04-05 09:59:40,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:40,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:59:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:40,054 INFO L225 Difference]: With dead ends: 916 [2022-04-05 09:59:40,054 INFO L226 Difference]: Without dead ends: 512 [2022-04-05 09:59:40,055 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:40,055 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:40,055 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 382 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:59:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-04-05 09:59:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 430. [2022-04-05 09:59:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 425 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 673 transitions. [2022-04-05 09:59:40,066 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 673 transitions. Word has length 132 [2022-04-05 09:59:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:40,066 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 673 transitions. [2022-04-05 09:59:40,066 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 673 transitions. [2022-04-05 09:59:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:59:40,067 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:40,067 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:40,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 09:59:40,067 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:40,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash -973481716, now seen corresponding path program 1 times [2022-04-05 09:59:40,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:40,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102341043] [2022-04-05 09:59:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:40,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:40,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:40,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102341043] [2022-04-05 09:59:40,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102341043] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:40,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:40,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:40,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248758743] [2022-04-05 09:59:40,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:40,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:40,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:40,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:40,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:40,171 INFO L87 Difference]: Start difference. First operand 430 states and 673 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:43,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:44,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:45,157 INFO L93 Difference]: Finished difference Result 956 states and 1500 transitions. [2022-04-05 09:59:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:45,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:59:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:45,160 INFO L225 Difference]: With dead ends: 956 [2022-04-05 09:59:45,160 INFO L226 Difference]: Without dead ends: 552 [2022-04-05 09:59:45,160 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:45,161 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 124 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:45,161 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 383 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 09:59:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-04-05 09:59:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 473. [2022-04-05 09:59:45,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.579059829059829) internal successors, (739), 468 states have internal predecessors, (739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:45,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 743 transitions. [2022-04-05 09:59:45,168 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 743 transitions. Word has length 132 [2022-04-05 09:59:45,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:45,169 INFO L478 AbstractCegarLoop]: Abstraction has 473 states and 743 transitions. [2022-04-05 09:59:45,169 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:45,169 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 743 transitions. [2022-04-05 09:59:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 09:59:45,170 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:45,170 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:45,170 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 09:59:45,170 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:45,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:45,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2147089946, now seen corresponding path program 1 times [2022-04-05 09:59:45,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:45,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131935097] [2022-04-05 09:59:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:45,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:45,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:59:45,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:45,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131935097] [2022-04-05 09:59:45,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131935097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:45,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:45,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:45,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110086215] [2022-04-05 09:59:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:45,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:45,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:45,262 INFO L87 Difference]: Start difference. First operand 473 states and 743 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:47,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:49,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:51,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:52,185 INFO L93 Difference]: Finished difference Result 1002 states and 1575 transitions. [2022-04-05 09:59:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:52,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 09:59:52,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:52,187 INFO L225 Difference]: With dead ends: 1002 [2022-04-05 09:59:52,187 INFO L226 Difference]: Without dead ends: 553 [2022-04-05 09:59:52,188 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:52,189 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 125 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:52,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 406 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-05 09:59:52,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-04-05 09:59:52,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 475. [2022-04-05 09:59:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.578723404255319) internal successors, (742), 470 states have internal predecessors, (742), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 746 transitions. [2022-04-05 09:59:52,199 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 746 transitions. Word has length 133 [2022-04-05 09:59:52,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:52,200 INFO L478 AbstractCegarLoop]: Abstraction has 475 states and 746 transitions. [2022-04-05 09:59:52,200 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 746 transitions. [2022-04-05 09:59:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 09:59:52,201 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:52,201 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:52,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 09:59:52,201 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:52,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1361439291, now seen corresponding path program 1 times [2022-04-05 09:59:52,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:52,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695960221] [2022-04-05 09:59:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:52,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 09:59:52,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:52,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695960221] [2022-04-05 09:59:52,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695960221] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:52,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:52,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:52,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087227787] [2022-04-05 09:59:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:52,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:52,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:52,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:52,293 INFO L87 Difference]: Start difference. First operand 475 states and 746 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:54,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:54,720 INFO L93 Difference]: Finished difference Result 968 states and 1524 transitions. [2022-04-05 09:59:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:54,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 09:59:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:54,722 INFO L225 Difference]: With dead ends: 968 [2022-04-05 09:59:54,722 INFO L226 Difference]: Without dead ends: 519 [2022-04-05 09:59:54,723 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:54,723 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 98 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:54,724 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 545 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:59:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-04-05 09:59:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 475. [2022-04-05 09:59:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.5765957446808512) internal successors, (741), 470 states have internal predecessors, (741), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 745 transitions. [2022-04-05 09:59:54,733 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 745 transitions. Word has length 145 [2022-04-05 09:59:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:54,733 INFO L478 AbstractCegarLoop]: Abstraction has 475 states and 745 transitions. [2022-04-05 09:59:54,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 745 transitions. [2022-04-05 09:59:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 09:59:54,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:54,734 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:54,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 09:59:54,735 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:54,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-04-05 09:59:54,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:54,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843963890] [2022-04-05 09:59:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:54,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:59:54,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:54,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843963890] [2022-04-05 09:59:54,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843963890] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:54,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:54,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:54,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407859484] [2022-04-05 09:59:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:54,875 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:54,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:54,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:54,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:54,876 INFO L87 Difference]: Start difference. First operand 475 states and 745 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:55,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:57,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:59,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:01,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:01,567 INFO L93 Difference]: Finished difference Result 1044 states and 1640 transitions. [2022-04-05 10:00:01,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:01,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 10:00:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:01,569 INFO L225 Difference]: With dead ends: 1044 [2022-04-05 10:00:01,569 INFO L226 Difference]: Without dead ends: 595 [2022-04-05 10:00:01,570 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:01,570 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 136 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:01,571 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 10:00:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-04-05 10:00:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 505. [2022-04-05 10:00:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.568) internal successors, (784), 500 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 788 transitions. [2022-04-05 10:00:01,578 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 788 transitions. Word has length 145 [2022-04-05 10:00:01,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:01,578 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 788 transitions. [2022-04-05 10:00:01,579 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 788 transitions. [2022-04-05 10:00:01,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 10:00:01,580 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:01,580 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:01,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 10:00:01,580 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2132992452, now seen corresponding path program 1 times [2022-04-05 10:00:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:01,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390006983] [2022-04-05 10:00:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 10:00:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:01,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390006983] [2022-04-05 10:00:01,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390006983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:01,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:01,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:01,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375836044] [2022-04-05 10:00:01,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:01,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:01,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:01,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:01,681 INFO L87 Difference]: Start difference. First operand 505 states and 788 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:05,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:06,026 INFO L93 Difference]: Finished difference Result 1070 states and 1675 transitions. [2022-04-05 10:00:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:06,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 10:00:06,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:06,028 INFO L225 Difference]: With dead ends: 1070 [2022-04-05 10:00:06,028 INFO L226 Difference]: Without dead ends: 591 [2022-04-05 10:00:06,028 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:06,029 INFO L913 BasicCegarLoop]: 283 mSDtfsCounter, 99 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:06,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 691 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 608 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 10:00:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-04-05 10:00:06,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 517. [2022-04-05 10:00:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.564453125) internal successors, (801), 512 states have internal predecessors, (801), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 805 transitions. [2022-04-05 10:00:06,038 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 805 transitions. Word has length 145 [2022-04-05 10:00:06,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:06,038 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 805 transitions. [2022-04-05 10:00:06,038 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:06,038 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 805 transitions. [2022-04-05 10:00:06,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 10:00:06,039 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:06,039 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:06,039 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 10:00:06,039 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:06,040 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-04-05 10:00:06,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:06,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059112628] [2022-04-05 10:00:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:06,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:06,127 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:00:06,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:06,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059112628] [2022-04-05 10:00:06,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059112628] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:06,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:06,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:06,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632853805] [2022-04-05 10:00:06,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:06,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:06,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:06,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:06,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:06,129 INFO L87 Difference]: Start difference. First operand 517 states and 805 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:08,143 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 [] [2022-04-05 10:00:08,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:08,572 INFO L93 Difference]: Finished difference Result 1086 states and 1692 transitions. [2022-04-05 10:00:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:08,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 10:00:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:08,574 INFO L225 Difference]: With dead ends: 1086 [2022-04-05 10:00:08,574 INFO L226 Difference]: Without dead ends: 595 [2022-04-05 10:00:08,575 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:08,575 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 135 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:08,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:00:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-04-05 10:00:08,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-04-05 10:00:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.55078125) internal successors, (794), 512 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 798 transitions. [2022-04-05 10:00:08,583 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 798 transitions. Word has length 146 [2022-04-05 10:00:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:08,583 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 798 transitions. [2022-04-05 10:00:08,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 798 transitions. [2022-04-05 10:00:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 10:00:08,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:08,584 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:08,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 10:00:08,584 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1632396797, now seen corresponding path program 1 times [2022-04-05 10:00:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702246253] [2022-04-05 10:00:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 10:00:08,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:08,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702246253] [2022-04-05 10:00:08,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702246253] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:08,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:08,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:08,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709283357] [2022-04-05 10:00:08,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:08,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:08,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:08,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:08,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:08,687 INFO L87 Difference]: Start difference. First operand 517 states and 798 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:09,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:11,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:13,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:14,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:14,352 INFO L93 Difference]: Finished difference Result 1086 states and 1678 transitions. [2022-04-05 10:00:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 10:00:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:14,354 INFO L225 Difference]: With dead ends: 1086 [2022-04-05 10:00:14,354 INFO L226 Difference]: Without dead ends: 595 [2022-04-05 10:00:14,361 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:14,362 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 152 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:14,362 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 10:00:14,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-04-05 10:00:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-04-05 10:00:14,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.533203125) internal successors, (785), 512 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:14,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 789 transitions. [2022-04-05 10:00:14,370 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 789 transitions. Word has length 146 [2022-04-05 10:00:14,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:14,370 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 789 transitions. [2022-04-05 10:00:14,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:14,370 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 789 transitions. [2022-04-05 10:00:14,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 10:00:14,371 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:14,371 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:14,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 10:00:14,372 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash 895862080, now seen corresponding path program 1 times [2022-04-05 10:00:14,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:14,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299860055] [2022-04-05 10:00:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:14,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:14,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:14,479 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 10:00:14,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:14,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299860055] [2022-04-05 10:00:14,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299860055] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:14,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:14,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:14,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221980702] [2022-04-05 10:00:14,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:14,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:14,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:14,480 INFO L87 Difference]: Start difference. First operand 517 states and 789 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:17,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:18,897 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 [] [2022-04-05 10:00:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:20,025 INFO L93 Difference]: Finished difference Result 1040 states and 1595 transitions. [2022-04-05 10:00:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:20,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 10:00:20,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:20,027 INFO L225 Difference]: With dead ends: 1040 [2022-04-05 10:00:20,027 INFO L226 Difference]: Without dead ends: 549 [2022-04-05 10:00:20,028 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:20,029 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 83 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:20,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 535 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:00:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-04-05 10:00:20,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 517. [2022-04-05 10:00:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.53125) internal successors, (784), 512 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 788 transitions. [2022-04-05 10:00:20,039 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 788 transitions. Word has length 148 [2022-04-05 10:00:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:20,039 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 788 transitions. [2022-04-05 10:00:20,039 INFO L479 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) [2022-04-05 10:00:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 788 transitions. [2022-04-05 10:00:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 10:00:20,040 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:20,041 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:20,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 10:00:20,041 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:20,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash -302873185, now seen corresponding path program 1 times [2022-04-05 10:00:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:20,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32707861] [2022-04-05 10:00:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:20,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 10:00:20,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:20,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32707861] [2022-04-05 10:00:20,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32707861] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:20,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:20,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:20,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815839313] [2022-04-05 10:00:20,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:20,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:20,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:20,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:20,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:20,142 INFO L87 Difference]: Start difference. First operand 517 states and 788 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:21,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:23,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:23,084 INFO L93 Difference]: Finished difference Result 1086 states and 1658 transitions. [2022-04-05 10:00:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:23,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 10:00:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:23,086 INFO L225 Difference]: With dead ends: 1086 [2022-04-05 10:00:23,086 INFO L226 Difference]: Without dead ends: 595 [2022-04-05 10:00:23,086 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:23,088 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 149 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:23,088 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-05 10:00:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-04-05 10:00:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-04-05 10:00:23,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.515625) internal successors, (776), 512 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 780 transitions. [2022-04-05 10:00:23,095 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 780 transitions. Word has length 148 [2022-04-05 10:00:23,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:23,095 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 780 transitions. [2022-04-05 10:00:23,096 INFO L479 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) [2022-04-05 10:00:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 780 transitions. [2022-04-05 10:00:23,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 10:00:23,097 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:23,097 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:23,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 10:00:23,097 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1357257888, now seen corresponding path program 1 times [2022-04-05 10:00:23,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:23,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142935179] [2022-04-05 10:00:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:00:23,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:23,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142935179] [2022-04-05 10:00:23,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142935179] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:23,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:23,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:23,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55109227] [2022-04-05 10:00:23,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:23,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:23,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:23,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:23,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:23,194 INFO L87 Difference]: Start difference. First operand 517 states and 780 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:24,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:26,248 INFO L93 Difference]: Finished difference Result 1128 states and 1706 transitions. [2022-04-05 10:00:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 10:00:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:26,250 INFO L225 Difference]: With dead ends: 1128 [2022-04-05 10:00:26,250 INFO L226 Difference]: Without dead ends: 637 [2022-04-05 10:00:26,251 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:26,251 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 135 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:26,251 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-05 10:00:26,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-04-05 10:00:26,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 545. [2022-04-05 10:00:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.5037037037037038) internal successors, (812), 540 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:26,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 816 transitions. [2022-04-05 10:00:26,260 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 816 transitions. Word has length 149 [2022-04-05 10:00:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:26,260 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 816 transitions. [2022-04-05 10:00:26,260 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:26,260 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 816 transitions. [2022-04-05 10:00:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-05 10:00:26,261 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:26,261 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:26,261 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 10:00:26,261 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:26,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:26,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1644895615, now seen corresponding path program 1 times [2022-04-05 10:00:26,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:26,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332446559] [2022-04-05 10:00:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:26,387 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 10:00:26,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:26,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332446559] [2022-04-05 10:00:26,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332446559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:26,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:26,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:26,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576771798] [2022-04-05 10:00:26,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:26,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:26,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:26,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:26,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:26,389 INFO L87 Difference]: Start difference. First operand 545 states and 816 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:29,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:31,022 INFO L93 Difference]: Finished difference Result 1142 states and 1714 transitions. [2022-04-05 10:00:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:31,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-04-05 10:00:31,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:31,025 INFO L225 Difference]: With dead ends: 1142 [2022-04-05 10:00:31,025 INFO L226 Difference]: Without dead ends: 623 [2022-04-05 10:00:31,026 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:31,026 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:31,026 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 10:00:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-04-05 10:00:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 545. [2022-04-05 10:00:31,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.488888888888889) internal successors, (804), 540 states have internal predecessors, (804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 808 transitions. [2022-04-05 10:00:31,036 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 808 transitions. Word has length 150 [2022-04-05 10:00:31,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:31,036 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 808 transitions. [2022-04-05 10:00:31,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 808 transitions. [2022-04-05 10:00:31,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-05 10:00:31,038 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:31,038 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:31,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 10:00:31,038 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:31,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:31,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1425004022, now seen corresponding path program 1 times [2022-04-05 10:00:31,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:31,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934337526] [2022-04-05 10:00:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:31,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 10:00:31,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:31,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934337526] [2022-04-05 10:00:31,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934337526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:31,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:31,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:31,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761077297] [2022-04-05 10:00:31,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:31,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:31,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:31,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:31,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:31,146 INFO L87 Difference]: Start difference. First operand 545 states and 808 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:34,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:35,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:35,368 INFO L93 Difference]: Finished difference Result 1184 states and 1760 transitions. [2022-04-05 10:00:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:35,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-04-05 10:00:35,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:35,370 INFO L225 Difference]: With dead ends: 1184 [2022-04-05 10:00:35,371 INFO L226 Difference]: Without dead ends: 665 [2022-04-05 10:00:35,371 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:35,372 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 127 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:35,372 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 384 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-04-05 10:00:35,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-04-05 10:00:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 580. [2022-04-05 10:00:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4817391304347827) internal successors, (852), 575 states have internal predecessors, (852), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 856 transitions. [2022-04-05 10:00:35,382 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 856 transitions. Word has length 157 [2022-04-05 10:00:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:35,382 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 856 transitions. [2022-04-05 10:00:35,382 INFO L479 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) [2022-04-05 10:00:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 856 transitions. [2022-04-05 10:00:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 10:00:35,384 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:35,384 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:35,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 10:00:35,384 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:35,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -469188179, now seen corresponding path program 1 times [2022-04-05 10:00:35,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:35,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048312492] [2022-04-05 10:00:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:35,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 10:00:35,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:35,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048312492] [2022-04-05 10:00:35,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048312492] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:35,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:35,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:35,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658082538] [2022-04-05 10:00:35,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:35,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:35,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:35,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:35,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:35,500 INFO L87 Difference]: Start difference. First operand 580 states and 856 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:37,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:39,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:40,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:41,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:41,343 INFO L93 Difference]: Finished difference Result 1155 states and 1712 transitions. [2022-04-05 10:00:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:41,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 10:00:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:41,345 INFO L225 Difference]: With dead ends: 1155 [2022-04-05 10:00:41,345 INFO L226 Difference]: Without dead ends: 601 [2022-04-05 10:00:41,345 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:41,346 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 46 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:41,346 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 557 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 10:00:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-04-05 10:00:41,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 580. [2022-04-05 10:00:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.48) internal successors, (851), 575 states have internal predecessors, (851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 855 transitions. [2022-04-05 10:00:41,353 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 855 transitions. Word has length 158 [2022-04-05 10:00:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:41,354 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 855 transitions. [2022-04-05 10:00:41,354 INFO L479 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) [2022-04-05 10:00:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 855 transitions. [2022-04-05 10:00:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 10:00:41,355 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:41,355 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:41,355 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 10:00:41,355 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:41,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:41,355 INFO L85 PathProgramCache]: Analyzing trace with hash 612620108, now seen corresponding path program 1 times [2022-04-05 10:00:41,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:41,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267141173] [2022-04-05 10:00:41,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:41,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-05 10:00:41,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:41,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267141173] [2022-04-05 10:00:41,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267141173] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:41,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:41,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494217468] [2022-04-05 10:00:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:41,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:41,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:41,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:41,471 INFO L87 Difference]: Start difference. First operand 580 states and 855 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:42,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:45,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:47,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:47,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:47,820 INFO L93 Difference]: Finished difference Result 1212 states and 1792 transitions. [2022-04-05 10:00:47,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:47,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-05 10:00:47,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:47,822 INFO L225 Difference]: With dead ends: 1212 [2022-04-05 10:00:47,822 INFO L226 Difference]: Without dead ends: 658 [2022-04-05 10:00:47,823 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:47,823 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 126 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:47,823 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 10:00:47,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-04-05 10:00:47,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 580. [2022-04-05 10:00:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4730434782608695) internal successors, (847), 575 states have internal predecessors, (847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 851 transitions. [2022-04-05 10:00:47,831 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 851 transitions. Word has length 158 [2022-04-05 10:00:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:47,831 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 851 transitions. [2022-04-05 10:00:47,831 INFO L479 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) [2022-04-05 10:00:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 851 transitions. [2022-04-05 10:00:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 10:00:47,832 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:47,833 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:47,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 10:00:47,833 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:47,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:47,833 INFO L85 PathProgramCache]: Analyzing trace with hash -689331971, now seen corresponding path program 1 times [2022-04-05 10:00:47,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:47,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465166229] [2022-04-05 10:00:47,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:47,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-04-05 10:00:47,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:47,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465166229] [2022-04-05 10:00:47,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465166229] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:47,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:47,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:00:47,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506593563] [2022-04-05 10:00:47,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:47,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:00:47,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:47,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:00:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:00:47,941 INFO L87 Difference]: Start difference. First operand 580 states and 851 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:49,164 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 [] [2022-04-05 10:00:51,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:52,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:54,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:55,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:55,313 INFO L93 Difference]: Finished difference Result 1155 states and 1702 transitions. [2022-04-05 10:00:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:55,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-05 10:00:55,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:55,315 INFO L225 Difference]: With dead ends: 1155 [2022-04-05 10:00:55,315 INFO L226 Difference]: Without dead ends: 601 [2022-04-05 10:00:55,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:55,316 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:55,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 571 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-04-05 10:00:55,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-04-05 10:00:55,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 580. [2022-04-05 10:00:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.471304347826087) internal successors, (846), 575 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 850 transitions. [2022-04-05 10:00:55,325 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 850 transitions. Word has length 167 [2022-04-05 10:00:55,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:55,325 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 850 transitions. [2022-04-05 10:00:55,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 850 transitions. [2022-04-05 10:00:55,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 10:00:55,326 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:55,327 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:55,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 10:00:55,327 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:55,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1330418114, now seen corresponding path program 1 times [2022-04-05 10:00:55,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:55,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037491778] [2022-04-05 10:00:55,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:55,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-04-05 10:00:55,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:55,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037491778] [2022-04-05 10:00:55,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037491778] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:00:55,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:00:55,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 10:00:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308248803] [2022-04-05 10:00:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:55,435 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 10:00:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 10:00:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:55,436 INFO L87 Difference]: Start difference. First operand 580 states and 850 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:56,654 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 [] [2022-04-05 10:00:58,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:00,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:02,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:04,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:04,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:04,706 INFO L93 Difference]: Finished difference Result 1134 states and 1670 transitions. [2022-04-05 10:01:04,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 10:01:04,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-05 10:01:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:04,708 INFO L225 Difference]: With dead ends: 1134 [2022-04-05 10:01:04,708 INFO L226 Difference]: Without dead ends: 580 [2022-04-05 10:01:04,708 INFO L912 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 [2022-04-05 10:01:04,709 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 162 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 42 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:04,709 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 536 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2022-04-05 10:01:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-04-05 10:01:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-04-05 10:01:04,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4695652173913043) internal successors, (845), 575 states have internal predecessors, (845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 849 transitions. [2022-04-05 10:01:04,716 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 849 transitions. Word has length 167 [2022-04-05 10:01:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:04,716 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 849 transitions. [2022-04-05 10:01:04,716 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 849 transitions. [2022-04-05 10:01:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 10:01:04,717 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:04,717 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:04,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 10:01:04,717 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:04,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:04,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1418766410, now seen corresponding path program 1 times [2022-04-05 10:01:04,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:04,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992667707] [2022-04-05 10:01:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:04,812 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 10:01:04,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:04,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992667707] [2022-04-05 10:01:04,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992667707] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:04,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:04,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714779615] [2022-04-05 10:01:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:04,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:04,813 INFO L87 Difference]: Start difference. First operand 580 states and 849 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:07,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:08,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:08,639 INFO L93 Difference]: Finished difference Result 1685 states and 2485 transitions. [2022-04-05 10:01:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 10:01:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:08,643 INFO L225 Difference]: With dead ends: 1685 [2022-04-05 10:01:08,643 INFO L226 Difference]: Without dead ends: 1131 [2022-04-05 10:01:08,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:08,644 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:08,645 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 457 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 329 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-04-05 10:01:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-04-05 10:01:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2022-04-05 10:01:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1126 states have (on average 1.4618117229129663) internal successors, (1646), 1126 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1650 transitions. [2022-04-05 10:01:08,683 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1650 transitions. Word has length 173 [2022-04-05 10:01:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:08,684 INFO L478 AbstractCegarLoop]: Abstraction has 1131 states and 1650 transitions. [2022-04-05 10:01:08,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1650 transitions. [2022-04-05 10:01:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 10:01:08,687 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:08,687 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:08,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 10:01:08,687 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 511464439, now seen corresponding path program 1 times [2022-04-05 10:01:08,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:08,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56082699] [2022-04-05 10:01:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:08,811 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-04-05 10:01:08,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:08,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56082699] [2022-04-05 10:01:08,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56082699] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:08,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:08,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:08,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495121412] [2022-04-05 10:01:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:08,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:08,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:08,814 INFO L87 Difference]: Start difference. First operand 1131 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:10,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:12,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:13,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:14,245 INFO L93 Difference]: Finished difference Result 2263 states and 3307 transitions. [2022-04-05 10:01:14,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:14,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 10:01:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:14,248 INFO L225 Difference]: With dead ends: 2263 [2022-04-05 10:01:14,248 INFO L226 Difference]: Without dead ends: 1158 [2022-04-05 10:01:14,249 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:14,249 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:14,250 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 10:01:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-04-05 10:01:14,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2022-04-05 10:01:14,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1153 states have (on average 1.4579358196010408) internal successors, (1681), 1153 states have internal predecessors, (1681), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1685 transitions. [2022-04-05 10:01:14,264 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1685 transitions. Word has length 173 [2022-04-05 10:01:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:14,265 INFO L478 AbstractCegarLoop]: Abstraction has 1158 states and 1685 transitions. [2022-04-05 10:01:14,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1685 transitions. [2022-04-05 10:01:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 10:01:14,267 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:14,267 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:14,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 10:01:14,267 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:14,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1477027256, now seen corresponding path program 1 times [2022-04-05 10:01:14,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:14,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957420766] [2022-04-05 10:01:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:14,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:14,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-04-05 10:01:14,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:14,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957420766] [2022-04-05 10:01:14,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957420766] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:14,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:14,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:14,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825490503] [2022-04-05 10:01:14,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:14,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:14,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:14,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:14,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:14,339 INFO L87 Difference]: Start difference. First operand 1158 states and 1685 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:16,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:17,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:18,569 INFO L93 Difference]: Finished difference Result 2292 states and 3343 transitions. [2022-04-05 10:01:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:18,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 10:01:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:18,573 INFO L225 Difference]: With dead ends: 2292 [2022-04-05 10:01:18,573 INFO L226 Difference]: Without dead ends: 1160 [2022-04-05 10:01:18,574 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:18,574 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:18,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-05 10:01:18,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-04-05 10:01:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2022-04-05 10:01:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1155 states have (on average 1.457142857142857) internal successors, (1683), 1155 states have internal predecessors, (1683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1687 transitions. [2022-04-05 10:01:18,601 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1687 transitions. Word has length 173 [2022-04-05 10:01:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:18,601 INFO L478 AbstractCegarLoop]: Abstraction has 1160 states and 1687 transitions. [2022-04-05 10:01:18,601 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1687 transitions. [2022-04-05 10:01:18,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-04-05 10:01:18,603 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:18,603 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:18,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 10:01:18,604 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:18,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:18,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1780826272, now seen corresponding path program 1 times [2022-04-05 10:01:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:18,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063617936] [2022-04-05 10:01:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:18,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-04-05 10:01:18,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:18,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063617936] [2022-04-05 10:01:18,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063617936] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:18,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:18,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:18,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056818503] [2022-04-05 10:01:18,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:18,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:18,710 INFO L87 Difference]: Start difference. First operand 1160 states and 1687 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:21,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:23,723 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 [] [2022-04-05 10:01:24,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:24,228 INFO L93 Difference]: Finished difference Result 2843 states and 4159 transitions. [2022-04-05 10:01:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:24,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-04-05 10:01:24,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:24,234 INFO L225 Difference]: With dead ends: 2843 [2022-04-05 10:01:24,234 INFO L226 Difference]: Without dead ends: 1711 [2022-04-05 10:01:24,236 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:24,240 INFO L913 BasicCegarLoop]: 395 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:24,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 10:01:24,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2022-04-05 10:01:24,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2022-04-05 10:01:24,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1706 states have (on average 1.4560375146541618) internal successors, (2484), 1706 states have internal predecessors, (2484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2488 transitions. [2022-04-05 10:01:24,277 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2488 transitions. Word has length 197 [2022-04-05 10:01:24,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:24,277 INFO L478 AbstractCegarLoop]: Abstraction has 1711 states and 2488 transitions. [2022-04-05 10:01:24,277 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:24,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2488 transitions. [2022-04-05 10:01:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-04-05 10:01:24,280 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:24,280 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:24,280 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 10:01:24,280 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:24,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-04-05 10:01:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:24,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427615904] [2022-04-05 10:01:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 10:01:24,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:24,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427615904] [2022-04-05 10:01:24,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427615904] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:24,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:24,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:24,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936313629] [2022-04-05 10:01:24,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:24,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:24,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:24,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:24,419 INFO L87 Difference]: Start difference. First operand 1711 states and 2488 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:26,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:28,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:30,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:30,507 INFO L93 Difference]: Finished difference Result 3945 states and 5761 transitions. [2022-04-05 10:01:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:30,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-04-05 10:01:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:30,513 INFO L225 Difference]: With dead ends: 3945 [2022-04-05 10:01:30,513 INFO L226 Difference]: Without dead ends: 2262 [2022-04-05 10:01:30,516 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:30,516 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:30,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 10:01:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-04-05 10:01:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-04-05 10:01:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 2257 states have (on average 1.4554718653079308) internal successors, (3285), 2257 states have internal predecessors, (3285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3289 transitions. [2022-04-05 10:01:30,566 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3289 transitions. Word has length 202 [2022-04-05 10:01:30,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:30,566 INFO L478 AbstractCegarLoop]: Abstraction has 2262 states and 3289 transitions. [2022-04-05 10:01:30,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3289 transitions. [2022-04-05 10:01:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-04-05 10:01:30,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:30,569 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:30,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 10:01:30,569 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:30,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-04-05 10:01:30,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:30,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279347774] [2022-04-05 10:01:30,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:30,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-05 10:01:30,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:30,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279347774] [2022-04-05 10:01:30,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279347774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:30,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:30,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:30,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774830153] [2022-04-05 10:01:30,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:30,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:30,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:30,683 INFO L87 Difference]: Start difference. First operand 2262 states and 3289 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:32,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:34,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:36,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:36,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:36,697 INFO L93 Difference]: Finished difference Result 5048 states and 7364 transitions. [2022-04-05 10:01:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-04-05 10:01:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:36,710 INFO L225 Difference]: With dead ends: 5048 [2022-04-05 10:01:36,710 INFO L226 Difference]: Without dead ends: 2814 [2022-04-05 10:01:36,713 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:36,713 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:36,713 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 10:01:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-04-05 10:01:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2022-04-05 10:01:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2809 states have (on average 1.4571021715913137) internal successors, (4093), 2809 states have internal predecessors, (4093), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4097 transitions. [2022-04-05 10:01:36,763 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4097 transitions. Word has length 202 [2022-04-05 10:01:36,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:36,764 INFO L478 AbstractCegarLoop]: Abstraction has 2814 states and 4097 transitions. [2022-04-05 10:01:36,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4097 transitions. [2022-04-05 10:01:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-05 10:01:36,767 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:36,767 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:36,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 10:01:36,767 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:36,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-04-05 10:01:36,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:36,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002768623] [2022-04-05 10:01:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-05 10:01:36,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:36,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002768623] [2022-04-05 10:01:36,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002768623] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:36,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:36,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:36,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721416677] [2022-04-05 10:01:36,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:36,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:36,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:36,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:36,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:36,897 INFO L87 Difference]: Start difference. First operand 2814 states and 4097 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:38,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:40,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:40,563 INFO L93 Difference]: Finished difference Result 6146 states and 8971 transitions. [2022-04-05 10:01:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-05 10:01:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:40,569 INFO L225 Difference]: With dead ends: 6146 [2022-04-05 10:01:40,569 INFO L226 Difference]: Without dead ends: 3360 [2022-04-05 10:01:40,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:40,572 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:40,572 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 10:01:40,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-04-05 10:01:40,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3360. [2022-04-05 10:01:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3355 states have (on average 1.456929955290611) internal successors, (4888), 3355 states have internal predecessors, (4888), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4892 transitions. [2022-04-05 10:01:40,618 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4892 transitions. Word has length 275 [2022-04-05 10:01:40,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:40,618 INFO L478 AbstractCegarLoop]: Abstraction has 3360 states and 4892 transitions. [2022-04-05 10:01:40,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4892 transitions. [2022-04-05 10:01:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-05 10:01:40,622 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:40,622 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:40,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 10:01:40,622 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:40,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-04-05 10:01:40,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:40,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637702904] [2022-04-05 10:01:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:40,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:40,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-05 10:01:40,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:40,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637702904] [2022-04-05 10:01:40,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637702904] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:40,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:40,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411010488] [2022-04-05 10:01:40,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:40,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:40,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:40,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:40,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:40,769 INFO L87 Difference]: Start difference. First operand 3360 states and 4892 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:42,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:44,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:45,497 INFO L93 Difference]: Finished difference Result 7211 states and 10522 transitions. [2022-04-05 10:01:45,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:45,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-05 10:01:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:45,503 INFO L225 Difference]: With dead ends: 7211 [2022-04-05 10:01:45,503 INFO L226 Difference]: Without dead ends: 3879 [2022-04-05 10:01:45,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:45,507 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:45,508 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 10:01:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2022-04-05 10:01:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3879. [2022-04-05 10:01:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 3874 states have (on average 1.4563758389261745) internal successors, (5642), 3874 states have internal predecessors, (5642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5646 transitions. [2022-04-05 10:01:45,571 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5646 transitions. Word has length 275 [2022-04-05 10:01:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:45,571 INFO L478 AbstractCegarLoop]: Abstraction has 3879 states and 5646 transitions. [2022-04-05 10:01:45,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5646 transitions. [2022-04-05 10:01:45,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-05 10:01:45,575 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:45,575 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:45,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 10:01:45,576 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:45,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:45,576 INFO L85 PathProgramCache]: Analyzing trace with hash 273465922, now seen corresponding path program 1 times [2022-04-05 10:01:45,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:45,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548790870] [2022-04-05 10:01:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:45,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-04-05 10:01:45,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:45,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548790870] [2022-04-05 10:01:45,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548790870] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:45,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:45,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:45,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14698916] [2022-04-05 10:01:45,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:45,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:45,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:45,685 INFO L87 Difference]: Start difference. First operand 3879 states and 5646 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:47,469 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 [] [2022-04-05 10:01:48,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:49,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:50,339 INFO L93 Difference]: Finished difference Result 8244 states and 12022 transitions. [2022-04-05 10:01:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:50,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-05 10:01:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:50,345 INFO L225 Difference]: With dead ends: 8244 [2022-04-05 10:01:50,345 INFO L226 Difference]: Without dead ends: 4393 [2022-04-05 10:01:50,348 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:50,349 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 157 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:50,349 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 10:01:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2022-04-05 10:01:50,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4393. [2022-04-05 10:01:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 4388 states have (on average 1.455788514129444) internal successors, (6388), 4388 states have internal predecessors, (6388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 6392 transitions. [2022-04-05 10:01:50,404 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 6392 transitions. Word has length 275 [2022-04-05 10:01:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:50,405 INFO L478 AbstractCegarLoop]: Abstraction has 4393 states and 6392 transitions. [2022-04-05 10:01:50,405 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 6392 transitions. [2022-04-05 10:01:50,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-05 10:01:50,410 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:50,410 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:50,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 10:01:50,410 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -245826365, now seen corresponding path program 1 times [2022-04-05 10:01:50,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:50,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110052603] [2022-04-05 10:01:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-04-05 10:01:50,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:50,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110052603] [2022-04-05 10:01:50,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110052603] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:50,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:50,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:50,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893640370] [2022-04-05 10:01:50,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:50,541 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:50,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:50,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:50,541 INFO L87 Difference]: Start difference. First operand 4393 states and 6392 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:51,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:53,039 INFO L93 Difference]: Finished difference Result 9274 states and 13516 transitions. [2022-04-05 10:01:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-05 10:01:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:53,045 INFO L225 Difference]: With dead ends: 9274 [2022-04-05 10:01:53,045 INFO L226 Difference]: Without dead ends: 4909 [2022-04-05 10:01:53,049 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:53,050 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 187 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:53,050 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 10:01:53,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2022-04-05 10:01:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 4909. [2022-04-05 10:01:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4909 states, 4904 states have (on average 1.4551386623164764) internal successors, (7136), 4904 states have internal predecessors, (7136), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 7140 transitions. [2022-04-05 10:01:53,111 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 7140 transitions. Word has length 275 [2022-04-05 10:01:53,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:53,111 INFO L478 AbstractCegarLoop]: Abstraction has 4909 states and 7140 transitions. [2022-04-05 10:01:53,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:53,112 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 7140 transitions. [2022-04-05 10:01:53,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-04-05 10:01:53,118 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:53,118 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:53,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 10:01:53,118 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:53,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:53,119 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-04-05 10:01:53,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:53,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462111168] [2022-04-05 10:01:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:53,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-04-05 10:01:53,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:53,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462111168] [2022-04-05 10:01:53,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462111168] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:53,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:53,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:53,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249806372] [2022-04-05 10:01:53,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:53,336 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:53,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:53,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:53,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:53,337 INFO L87 Difference]: Start difference. First operand 4909 states and 7140 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:55,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:57,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:01:58,070 INFO L93 Difference]: Finished difference Result 10337 states and 15059 transitions. [2022-04-05 10:01:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:01:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 398 [2022-04-05 10:01:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:01:58,077 INFO L225 Difference]: With dead ends: 10337 [2022-04-05 10:01:58,077 INFO L226 Difference]: Without dead ends: 5456 [2022-04-05 10:01:58,082 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:58,082 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:01:58,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 10:01:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2022-04-05 10:01:58,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5456. [2022-04-05 10:01:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5451 states have (on average 1.4551458447991195) internal successors, (7932), 5451 states have internal predecessors, (7932), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 7936 transitions. [2022-04-05 10:01:58,150 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 7936 transitions. Word has length 398 [2022-04-05 10:01:58,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:01:58,151 INFO L478 AbstractCegarLoop]: Abstraction has 5456 states and 7936 transitions. [2022-04-05 10:01:58,151 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:58,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 7936 transitions. [2022-04-05 10:01:58,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-04-05 10:01:58,167 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:01:58,168 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:01:58,168 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 10:01:58,168 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:01:58,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:01:58,169 INFO L85 PathProgramCache]: Analyzing trace with hash 32899640, now seen corresponding path program 1 times [2022-04-05 10:01:58,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:01:58,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851674263] [2022-04-05 10:01:58,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:01:58,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:01:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:58,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:01:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:01:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-04-05 10:01:58,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:01:58,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851674263] [2022-04-05 10:01:58,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851674263] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:01:58,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:01:58,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:01:58,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607532003] [2022-04-05 10:01:58,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:01:58,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:01:58,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:01:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:01:58,380 INFO L87 Difference]: Start difference. First operand 5456 states and 7936 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:59,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:01,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:03,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:04,289 INFO L93 Difference]: Finished difference Result 11399 states and 16603 transitions. [2022-04-05 10:02:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:02:04,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-04-05 10:02:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:04,296 INFO L225 Difference]: With dead ends: 11399 [2022-04-05 10:02:04,296 INFO L226 Difference]: Without dead ends: 5971 [2022-04-05 10:02:04,301 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:02:04,302 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:04,302 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 10:02:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2022-04-05 10:02:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 5971. [2022-04-05 10:02:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5971 states, 5966 states have (on average 1.4549111632584646) internal successors, (8680), 5966 states have internal predecessors, (8680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 8684 transitions. [2022-04-05 10:02:04,386 INFO L78 Accepts]: Start accepts. Automaton has 5971 states and 8684 transitions. Word has length 399 [2022-04-05 10:02:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:04,386 INFO L478 AbstractCegarLoop]: Abstraction has 5971 states and 8684 transitions. [2022-04-05 10:02:04,386 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5971 states and 8684 transitions. [2022-04-05 10:02:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-04-05 10:02:04,393 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:04,393 INFO L499 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] [2022-04-05 10:02:04,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 10:02:04,393 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:04,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:04,394 INFO L85 PathProgramCache]: Analyzing trace with hash -383046196, now seen corresponding path program 1 times [2022-04-05 10:02:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:04,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601247073] [2022-04-05 10:02:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:04,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-04-05 10:02:04,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:04,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601247073] [2022-04-05 10:02:04,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601247073] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:04,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:04,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 10:02:04,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944391902] [2022-04-05 10:02:04,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:04,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:02:04,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:04,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:02:04,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:02:04,574 INFO L87 Difference]: Start difference. First operand 5971 states and 8684 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:06,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:08,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:10,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:10,682 INFO L93 Difference]: Finished difference Result 12420 states and 18088 transitions. [2022-04-05 10:02:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:02:10,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 400 [2022-04-05 10:02:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:10,690 INFO L225 Difference]: With dead ends: 12420 [2022-04-05 10:02:10,691 INFO L226 Difference]: Without dead ends: 6477 [2022-04-05 10:02:10,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 10:02:10,696 INFO L913 BasicCegarLoop]: 396 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:10,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 590 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 10:02:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6477 states. [2022-04-05 10:02:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6477 to 6477. [2022-04-05 10:02:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6472 states have (on average 1.4550370828182941) internal successors, (9417), 6472 states have internal predecessors, (9417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 9421 transitions. [2022-04-05 10:02:10,785 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 9421 transitions. Word has length 400 [2022-04-05 10:02:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:10,785 INFO L478 AbstractCegarLoop]: Abstraction has 6477 states and 9421 transitions. [2022-04-05 10:02:10,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 9421 transitions. [2022-04-05 10:02:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-04-05 10:02:10,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:10,794 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:10,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-05 10:02:10,794 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:10,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-04-05 10:02:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:10,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367310979] [2022-04-05 10:02:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-04-05 10:02:11,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:11,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367310979] [2022-04-05 10:02:11,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367310979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:11,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:11,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:11,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907142213] [2022-04-05 10:02:11,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:11,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:11,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:11,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:11,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:11,042 INFO L87 Difference]: Start difference. First operand 6477 states and 9421 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:12,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:14,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:16,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:18,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:18,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:18,636 INFO L93 Difference]: Finished difference Result 13801 states and 19982 transitions. [2022-04-05 10:02:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:18,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-04-05 10:02:18,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:18,643 INFO L225 Difference]: With dead ends: 13801 [2022-04-05 10:02:18,643 INFO L226 Difference]: Without dead ends: 7352 [2022-04-05 10:02:18,657 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:18,658 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 50 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:18,658 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 663 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 549 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 10:02:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-04-05 10:02:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 6969. [2022-04-05 10:02:18,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 6964 states have (on average 1.452182653647329) internal successors, (10113), 6964 states have internal predecessors, (10113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 10117 transitions. [2022-04-05 10:02:18,777 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 10117 transitions. Word has length 524 [2022-04-05 10:02:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:18,777 INFO L478 AbstractCegarLoop]: Abstraction has 6969 states and 10117 transitions. [2022-04-05 10:02:18,777 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 10117 transitions. [2022-04-05 10:02:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-04-05 10:02:18,786 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:18,786 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:18,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 10:02:18,787 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:18,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:18,787 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-04-05 10:02:18,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:18,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670875389] [2022-04-05 10:02:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:18,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:19,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1698 proven. 480 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-04-05 10:02:19,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670875389] [2022-04-05 10:02:19,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670875389] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:02:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229585131] [2022-04-05 10:02:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:19,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:02:19,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:02:19,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:02:19,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 10:02:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:20,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-04-05 10:02:20,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:02:20,778 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:02:20,778 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 [2022-04-05 10:02:20,897 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-05 10:02:20,897 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 [2022-04-05 10:02:21,211 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 [2022-04-05 10:02:21,284 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:02:21,284 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 [2022-04-05 10:02:21,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:02:21,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 10:02:21,424 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 [2022-04-05 10:02:21,428 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 [2022-04-05 10:02:21,470 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-04-05 10:02:21,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 77 [2022-04-05 10:02:21,593 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-04-05 10:02:21,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 48 [2022-04-05 10:02:21,851 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:02:21,851 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 [2022-04-05 10:02:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-04-05 10:02:21,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:02:22,367 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 [2022-04-05 10:02:22,373 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 [2022-04-05 10:02:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-04-05 10:02:25,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229585131] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:02:25,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:02:25,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 14] total 29 [2022-04-05 10:02:25,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869988526] [2022-04-05 10:02:25,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:25,942 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 10:02:25,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:25,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 10:02:25,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=707, Unknown=1, NotChecked=0, Total=812 [2022-04-05 10:02:25,943 INFO L87 Difference]: Start difference. First operand 6969 states and 10117 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:27,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:29,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:38,249 INFO L93 Difference]: Finished difference Result 19721 states and 28513 transitions. [2022-04-05 10:02:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 10:02:38,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-04-05 10:02:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:38,266 INFO L225 Difference]: With dead ends: 19721 [2022-04-05 10:02:38,266 INFO L226 Difference]: Without dead ends: 12780 [2022-04-05 10:02:38,276 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=133, Invalid=920, Unknown=3, NotChecked=0, Total=1056 [2022-04-05 10:02:38,278 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 430 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:38,278 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 954 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 533 Invalid, 0 Unknown, 188 Unchecked, 4.3s Time] [2022-04-05 10:02:38,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12780 states. [2022-04-05 10:02:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12780 to 10942. [2022-04-05 10:02:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10942 states, 10937 states have (on average 1.4653927036664534) internal successors, (16027), 10937 states have internal predecessors, (16027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10942 states to 10942 states and 16031 transitions. [2022-04-05 10:02:38,528 INFO L78 Accepts]: Start accepts. Automaton has 10942 states and 16031 transitions. Word has length 524 [2022-04-05 10:02:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:38,529 INFO L478 AbstractCegarLoop]: Abstraction has 10942 states and 16031 transitions. [2022-04-05 10:02:38,529 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10942 states and 16031 transitions. [2022-04-05 10:02:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-05 10:02:38,543 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:38,543 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:38,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-05 10:02:38,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-04-05 10:02:38,752 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:38,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:38,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-04-05 10:02:38,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:38,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93188220] [2022-04-05 10:02:38,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:38,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-04-05 10:02:39,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:39,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93188220] [2022-04-05 10:02:39,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93188220] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:39,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:39,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:39,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529982366] [2022-04-05 10:02:39,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:39,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:39,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:39,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:39,176 INFO L87 Difference]: Start difference. First operand 10942 states and 16031 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:41,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:43,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:45,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:45,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:45,953 INFO L93 Difference]: Finished difference Result 22426 states and 32730 transitions. [2022-04-05 10:02:45,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:45,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-04-05 10:02:45,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:45,964 INFO L225 Difference]: With dead ends: 22426 [2022-04-05 10:02:45,964 INFO L226 Difference]: Without dead ends: 11416 [2022-04-05 10:02:45,992 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:45,993 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 49 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:45,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 661 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 546 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 10:02:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-04-05 10:02:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 10858. [2022-04-05 10:02:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.466967658711877) internal successors, (15921), 10853 states have internal predecessors, (15921), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:46,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15925 transitions. [2022-04-05 10:02:46,198 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15925 transitions. Word has length 525 [2022-04-05 10:02:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:46,198 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15925 transitions. [2022-04-05 10:02:46,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15925 transitions. [2022-04-05 10:02:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-04-05 10:02:46,209 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:46,209 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 11, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:46,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 10:02:46,209 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:46,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:46,209 INFO L85 PathProgramCache]: Analyzing trace with hash 707414919, now seen corresponding path program 1 times [2022-04-05 10:02:46,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:46,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225088541] [2022-04-05 10:02:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:46,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2687 backedges. 1167 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2022-04-05 10:02:46,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:46,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225088541] [2022-04-05 10:02:46,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225088541] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:46,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:46,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:46,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769132121] [2022-04-05 10:02:46,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:46,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:46,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:46,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:46,428 INFO L87 Difference]: Start difference. First operand 10858 states and 15925 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:48,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:49,032 INFO L93 Difference]: Finished difference Result 22246 states and 32506 transitions. [2022-04-05 10:02:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:49,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 526 [2022-04-05 10:02:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:49,043 INFO L225 Difference]: With dead ends: 22246 [2022-04-05 10:02:49,043 INFO L226 Difference]: Without dead ends: 11416 [2022-04-05 10:02:49,052 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:49,052 INFO L913 BasicCegarLoop]: 267 mSDtfsCounter, 55 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:49,052 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 659 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 10:02:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-04-05 10:02:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 10858. [2022-04-05 10:02:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.464940569427808) internal successors, (15899), 10853 states have internal predecessors, (15899), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15903 transitions. [2022-04-05 10:02:49,213 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15903 transitions. Word has length 526 [2022-04-05 10:02:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:49,213 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15903 transitions. [2022-04-05 10:02:49,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:49,214 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15903 transitions. [2022-04-05 10:02:49,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-04-05 10:02:49,223 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:49,223 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:49,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-05 10:02:49,223 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 578027630, now seen corresponding path program 1 times [2022-04-05 10:02:49,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56207605] [2022-04-05 10:02:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:49,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:49,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2698 backedges. 1178 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2022-04-05 10:02:49,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:49,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56207605] [2022-04-05 10:02:49,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56207605] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:49,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:49,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:49,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133957872] [2022-04-05 10:02:49,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:49,438 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:49,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:49,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:49,438 INFO L87 Difference]: Start difference. First operand 10858 states and 15903 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:50,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:52,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:54,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:56,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:57,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:02:57,450 INFO L93 Difference]: Finished difference Result 22202 states and 32396 transitions. [2022-04-05 10:02:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:02:57,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 527 [2022-04-05 10:02:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:02:57,462 INFO L225 Difference]: With dead ends: 22202 [2022-04-05 10:02:57,462 INFO L226 Difference]: Without dead ends: 11372 [2022-04-05 10:02:57,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:02:57,472 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 52 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:02:57,472 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 657 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 507 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 10:02:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11372 states. [2022-04-05 10:02:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11372 to 10858. [2022-04-05 10:02:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.4629134801437391) internal successors, (15877), 10853 states have internal predecessors, (15877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:57,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15881 transitions. [2022-04-05 10:02:57,641 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15881 transitions. Word has length 527 [2022-04-05 10:02:57,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:02:57,641 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15881 transitions. [2022-04-05 10:02:57,642 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15881 transitions. [2022-04-05 10:02:57,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-04-05 10:02:57,652 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:02:57,652 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:02:57,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-05 10:02:57,653 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:02:57,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:02:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1419801683, now seen corresponding path program 1 times [2022-04-05 10:02:57,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:02:57,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564750497] [2022-04-05 10:02:57,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:02:57,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:02:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:02:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:02:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 1079 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-05 10:02:57,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:02:57,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564750497] [2022-04-05 10:02:57,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564750497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:02:57,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:02:57,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:02:57,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479893636] [2022-04-05 10:02:57,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:02:57,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:02:57,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:02:57,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:02:57,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:02:57,910 INFO L87 Difference]: Start difference. First operand 10858 states and 15881 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:02:59,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:01,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:03,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:05,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:05,664 INFO L93 Difference]: Finished difference Result 22082 states and 32208 transitions. [2022-04-05 10:03:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 539 [2022-04-05 10:03:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:05,674 INFO L225 Difference]: With dead ends: 22082 [2022-04-05 10:03:05,674 INFO L226 Difference]: Without dead ends: 11252 [2022-04-05 10:03:05,680 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:05,680 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 59 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:05,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 643 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-04-05 10:03:05,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-04-05 10:03:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 10858. [2022-04-05 10:03:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.46088639085967) internal successors, (15855), 10853 states have internal predecessors, (15855), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15859 transitions. [2022-04-05 10:03:05,825 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15859 transitions. Word has length 539 [2022-04-05 10:03:05,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:05,825 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15859 transitions. [2022-04-05 10:03:05,825 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:05,825 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15859 transitions. [2022-04-05 10:03:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-04-05 10:03:05,854 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:05,854 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:05,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-05 10:03:05,854 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:05,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:05,855 INFO L85 PathProgramCache]: Analyzing trace with hash 742695721, now seen corresponding path program 1 times [2022-04-05 10:03:05,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:05,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834965684] [2022-04-05 10:03:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:05,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1314 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-04-05 10:03:06,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:06,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834965684] [2022-04-05 10:03:06,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834965684] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:06,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:06,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:06,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610750275] [2022-04-05 10:03:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:06,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:06,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:06,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:06,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:06,050 INFO L87 Difference]: Start difference. First operand 10858 states and 15859 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:07,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:09,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:10,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:11,453 INFO L93 Difference]: Finished difference Result 22082 states and 32164 transitions. [2022-04-05 10:03:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:11,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 540 [2022-04-05 10:03:11,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:11,464 INFO L225 Difference]: With dead ends: 22082 [2022-04-05 10:03:11,464 INFO L226 Difference]: Without dead ends: 11252 [2022-04-05 10:03:11,473 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:11,473 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:11,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 641 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 10:03:11,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-04-05 10:03:11,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 10858. [2022-04-05 10:03:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.4588593015756013) internal successors, (15833), 10853 states have internal predecessors, (15833), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15837 transitions. [2022-04-05 10:03:11,648 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15837 transitions. Word has length 540 [2022-04-05 10:03:11,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:11,648 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15837 transitions. [2022-04-05 10:03:11,648 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:11,648 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15837 transitions. [2022-04-05 10:03:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-04-05 10:03:11,658 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:11,658 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:11,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-05 10:03:11,658 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:11,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1479219579, now seen corresponding path program 1 times [2022-04-05 10:03:11,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:11,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712673614] [2022-04-05 10:03:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:11,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:11,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 1323 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-04-05 10:03:11,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:11,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712673614] [2022-04-05 10:03:11,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712673614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:11,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:11,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:11,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781246344] [2022-04-05 10:03:11,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:11,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:11,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:11,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:11,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:11,917 INFO L87 Difference]: Start difference. First operand 10858 states and 15837 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:13,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:15,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:17,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:19,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:19,986 INFO L93 Difference]: Finished difference Result 21952 states and 31962 transitions. [2022-04-05 10:03:19,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:19,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 541 [2022-04-05 10:03:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:19,995 INFO L225 Difference]: With dead ends: 21952 [2022-04-05 10:03:19,995 INFO L226 Difference]: Without dead ends: 10924 [2022-04-05 10:03:20,004 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:20,004 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 29 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:20,005 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 625 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 10:03:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-04-05 10:03:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10660. [2022-04-05 10:03:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4653214453308305) internal successors, (15613), 10655 states have internal predecessors, (15613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:20,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15617 transitions. [2022-04-05 10:03:20,196 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15617 transitions. Word has length 541 [2022-04-05 10:03:20,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:20,196 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15617 transitions. [2022-04-05 10:03:20,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15617 transitions. [2022-04-05 10:03:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-04-05 10:03:20,207 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:20,207 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:20,207 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-05 10:03:20,207 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:20,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-04-05 10:03:20,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:20,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310789666] [2022-04-05 10:03:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:20,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:20,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-05 10:03:20,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:20,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310789666] [2022-04-05 10:03:20,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310789666] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:20,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:20,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:20,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590023658] [2022-04-05 10:03:20,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:20,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:20,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:20,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:20,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:20,430 INFO L87 Difference]: Start difference. First operand 10660 states and 15617 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:21,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:23,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:25,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:26,421 INFO L93 Difference]: Finished difference Result 21556 states and 31522 transitions. [2022-04-05 10:03:26,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-04-05 10:03:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:26,431 INFO L225 Difference]: With dead ends: 21556 [2022-04-05 10:03:26,431 INFO L226 Difference]: Without dead ends: 10924 [2022-04-05 10:03:26,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:26,438 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 30 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:26,438 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 623 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 10:03:26,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-04-05 10:03:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10660. [2022-04-05 10:03:26,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4632566870014079) internal successors, (15591), 10655 states have internal predecessors, (15591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15595 transitions. [2022-04-05 10:03:26,614 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15595 transitions. Word has length 546 [2022-04-05 10:03:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:26,614 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15595 transitions. [2022-04-05 10:03:26,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15595 transitions. [2022-04-05 10:03:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-04-05 10:03:26,623 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:26,623 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:26,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-05 10:03:26,624 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1541769972, now seen corresponding path program 1 times [2022-04-05 10:03:26,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:26,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242326173] [2022-04-05 10:03:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:26,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1135 proven. 46 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2022-04-05 10:03:26,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:26,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242326173] [2022-04-05 10:03:26,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242326173] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:03:26,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040052460] [2022-04-05 10:03:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:26,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:03:26,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:03:26,836 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) [2022-04-05 10:03:26,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 10:03:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:28,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 10:03:28,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:03:28,052 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:03:28,052 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 [2022-04-05 10:03:28,086 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:03:28,087 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 [2022-04-05 10:03:28,370 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 [2022-04-05 10:03:28,497 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:03:28,497 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 [2022-04-05 10:03:28,564 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 [2022-04-05 10:03:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1130 proven. 238 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2022-04-05 10:03:28,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:03:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2022-04-05 10:03:29,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040052460] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:03:29,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:03:29,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-05 10:03:29,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778685585] [2022-04-05 10:03:29,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:29,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:03:29,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:29,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:03:29,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 10:03:29,176 INFO L87 Difference]: Start difference. First operand 10660 states and 15595 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:30,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:31,286 INFO L93 Difference]: Finished difference Result 22707 states and 33011 transitions. [2022-04-05 10:03:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:03:31,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-04-05 10:03:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:31,297 INFO L225 Difference]: With dead ends: 22707 [2022-04-05 10:03:31,297 INFO L226 Difference]: Without dead ends: 12075 [2022-04-05 10:03:31,301 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1092 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 10:03:31,302 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 120 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:31,302 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 511 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-05 10:03:31,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12075 states. [2022-04-05 10:03:31,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12075 to 10660. [2022-04-05 10:03:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4610980760206476) internal successors, (15568), 10655 states have internal predecessors, (15568), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:31,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15572 transitions. [2022-04-05 10:03:31,500 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15572 transitions. Word has length 546 [2022-04-05 10:03:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:31,501 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15572 transitions. [2022-04-05 10:03:31,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15572 transitions. [2022-04-05 10:03:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-04-05 10:03:31,510 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:31,510 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:31,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-05 10:03:31,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2022-04-05 10:03:31,711 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-04-05 10:03:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:31,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074063011] [2022-04-05 10:03:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-05 10:03:31,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:31,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074063011] [2022-04-05 10:03:31,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074063011] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:31,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:31,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:31,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217150609] [2022-04-05 10:03:31,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:31,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:31,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:31,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:31,957 INFO L87 Difference]: Start difference. First operand 10660 states and 15572 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:33,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:35,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:37,371 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 [] [2022-04-05 10:03:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:38,449 INFO L93 Difference]: Finished difference Result 21468 states and 31318 transitions. [2022-04-05 10:03:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 547 [2022-04-05 10:03:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:38,458 INFO L225 Difference]: With dead ends: 21468 [2022-04-05 10:03:38,458 INFO L226 Difference]: Without dead ends: 10836 [2022-04-05 10:03:38,467 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:38,467 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 24 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:38,467 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 615 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 423 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 10:03:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-04-05 10:03:38,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10660. [2022-04-05 10:03:38,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4590333176912247) internal successors, (15546), 10655 states have internal predecessors, (15546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15550 transitions. [2022-04-05 10:03:38,714 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15550 transitions. Word has length 547 [2022-04-05 10:03:38,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:38,714 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15550 transitions. [2022-04-05 10:03:38,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:38,714 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15550 transitions. [2022-04-05 10:03:38,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-04-05 10:03:38,724 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:38,724 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:38,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-05 10:03:38,724 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash -858071160, now seen corresponding path program 1 times [2022-04-05 10:03:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:38,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200890531] [2022-04-05 10:03:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:38,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2808 backedges. 1076 proven. 0 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2022-04-05 10:03:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:38,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200890531] [2022-04-05 10:03:38,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200890531] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:38,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:38,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:38,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112906763] [2022-04-05 10:03:38,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:38,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:38,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:38,938 INFO L87 Difference]: Start difference. First operand 10660 states and 15550 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:41,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:43,688 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 [] [2022-04-05 10:03:44,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:44,237 INFO L93 Difference]: Finished difference Result 22292 states and 32478 transitions. [2022-04-05 10:03:44,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:44,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 547 [2022-04-05 10:03:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:44,248 INFO L225 Difference]: With dead ends: 22292 [2022-04-05 10:03:44,248 INFO L226 Difference]: Without dead ends: 11660 [2022-04-05 10:03:44,257 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:44,257 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:44,257 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 613 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 10:03:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11660 states. [2022-04-05 10:03:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11660 to 11232. [2022-04-05 10:03:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11232 states, 11227 states have (on average 1.4611205130489) internal successors, (16404), 11227 states have internal predecessors, (16404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11232 states to 11232 states and 16408 transitions. [2022-04-05 10:03:44,434 INFO L78 Accepts]: Start accepts. Automaton has 11232 states and 16408 transitions. Word has length 547 [2022-04-05 10:03:44,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:44,434 INFO L478 AbstractCegarLoop]: Abstraction has 11232 states and 16408 transitions. [2022-04-05 10:03:44,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 11232 states and 16408 transitions. [2022-04-05 10:03:44,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-04-05 10:03:44,444 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:44,444 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:44,444 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-05 10:03:44,444 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:44,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1838622775, now seen corresponding path program 1 times [2022-04-05 10:03:44,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:44,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400451301] [2022-04-05 10:03:44,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:44,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1410 proven. 190 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2022-04-05 10:03:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400451301] [2022-04-05 10:03:44,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400451301] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:03:44,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55660701] [2022-04-05 10:03:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:44,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:03:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:03:44,683 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) [2022-04-05 10:03:44,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 10:03:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:45,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-05 10:03:45,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:03:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1327 proven. 0 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-04-05 10:03:46,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 10:03:46,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55660701] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:46,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 10:03:46,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-04-05 10:03:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068021971] [2022-04-05 10:03:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:46,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 10:03:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:46,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 10:03:46,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 10:03:46,517 INFO L87 Difference]: Start difference. First operand 11232 states and 16408 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:46,721 INFO L93 Difference]: Finished difference Result 23470 states and 34323 transitions. [2022-04-05 10:03:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 10:03:46,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 548 [2022-04-05 10:03:46,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:46,733 INFO L225 Difference]: With dead ends: 23470 [2022-04-05 10:03:46,733 INFO L226 Difference]: Without dead ends: 12266 [2022-04-05 10:03:46,741 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 10:03:46,742 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 136 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:46,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 382 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-05 10:03:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2022-04-05 10:03:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 12266. [2022-04-05 10:03:46,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12266 states, 12261 states have (on average 1.4631759236603865) internal successors, (17940), 12261 states have internal predecessors, (17940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12266 states to 12266 states and 17944 transitions. [2022-04-05 10:03:46,943 INFO L78 Accepts]: Start accepts. Automaton has 12266 states and 17944 transitions. Word has length 548 [2022-04-05 10:03:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:46,943 INFO L478 AbstractCegarLoop]: Abstraction has 12266 states and 17944 transitions. [2022-04-05 10:03:46,943 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12266 states and 17944 transitions. [2022-04-05 10:03:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-05 10:03:46,953 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:46,953 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:46,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-05 10:03:47,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:03:47,154 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-04-05 10:03:47,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:47,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822107328] [2022-04-05 10:03:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:47,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-04-05 10:03:47,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:47,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822107328] [2022-04-05 10:03:47,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822107328] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:47,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:47,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 10:03:47,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787331474] [2022-04-05 10:03:47,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:47,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 10:03:47,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:47,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 10:03:47,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:47,478 INFO L87 Difference]: Start difference. First operand 12266 states and 17944 transitions. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:50,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:51,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:52,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:54,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:55,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:55,879 INFO L93 Difference]: Finished difference Result 30095 states and 43998 transitions. [2022-04-05 10:03:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 10:03:55,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-05 10:03:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:55,896 INFO L225 Difference]: With dead ends: 30095 [2022-04-05 10:03:55,896 INFO L226 Difference]: Without dead ends: 17857 [2022-04-05 10:03:55,908 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-05 10:03:55,909 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 121 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:55,909 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 992 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 890 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 10:03:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17857 states. [2022-04-05 10:03:56,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17857 to 12849. [2022-04-05 10:03:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12849 states, 12844 states have (on average 1.4634070383058237) internal successors, (18796), 12844 states have internal predecessors, (18796), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12849 states to 12849 states and 18800 transitions. [2022-04-05 10:03:56,178 INFO L78 Accepts]: Start accepts. Automaton has 12849 states and 18800 transitions. Word has length 553 [2022-04-05 10:03:56,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:56,178 INFO L478 AbstractCegarLoop]: Abstraction has 12849 states and 18800 transitions. [2022-04-05 10:03:56,178 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:56,178 INFO L276 IsEmpty]: Start isEmpty. Operand 12849 states and 18800 transitions. [2022-04-05 10:03:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-05 10:03:56,190 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:56,190 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:03:56,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-04-05 10:03:56,190 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:56,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:56,191 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-04-05 10:03:56,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:56,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140849657] [2022-04-05 10:03:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:56,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1155 proven. 1410 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-04-05 10:03:57,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:57,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140849657] [2022-04-05 10:03:57,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140849657] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:03:57,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439177487] [2022-04-05 10:03:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:57,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:03:57,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:03:57,720 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) [2022-04-05 10:03:57,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-05 10:03:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:58,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 94 conjunts are in the unsatisfiable core [2022-04-05 10:03:59,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:03:59,048 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:03:59,048 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 [2022-04-05 10:03:59,143 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-05 10:03:59,144 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 [2022-04-05 10:03:59,384 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 [2022-04-05 10:03:59,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:03:59,541 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 [2022-04-05 10:03:59,564 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-05 10:03:59,565 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 [2022-04-05 10:03:59,572 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:03:59,572 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 [2022-04-05 10:04:00,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,080 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 [2022-04-05 10:04:00,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,085 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 [2022-04-05 10:04:00,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,102 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 10:04:00,102 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 [2022-04-05 10:04:00,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,153 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 [2022-04-05 10:04:00,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,174 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 10:04:00,175 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 [2022-04-05 10:04:00,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-05 10:04:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,793 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 10:04:00,793 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 [2022-04-05 10:04:00,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:00,826 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 10:04:00,826 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 [2022-04-05 10:04:00,866 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-04-05 10:04:00,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-04-05 10:04:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:01,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:01,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:01,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:01,995 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 [2022-04-05 10:04:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:02,005 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 [2022-04-05 10:04:02,047 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-04-05 10:04:02,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2022-04-05 10:04:05,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 279 [2022-04-05 10:04:05,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,632 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 10:04:05,632 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 349 treesize of output 337 [2022-04-05 10:04:05,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,638 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 356 treesize of output 280 [2022-04-05 10:04:05,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,830 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 [2022-04-05 10:04:05,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:05,834 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 [2022-04-05 10:04:05,852 INFO L356 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-04-05 10:04:05,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 123 treesize of output 113 [2022-04-05 10:04:05,915 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-05 10:04:05,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2022-04-05 10:04:06,027 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:04:06,028 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 [2022-04-05 10:04:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1194 proven. 496 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-04-05 10:04:06,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:04:08,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:04:08,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:04:08,544 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 [2022-04-05 10:04:09,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:04:09,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:04:09,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:04:09,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:04:09,108 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-04-05 10:04:09,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 1 [2022-04-05 10:04:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-04-05 10:04:09,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439177487] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 10:04:09,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 10:04:09,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 13] total 48 [2022-04-05 10:04:09,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399765341] [2022-04-05 10:04:09,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 10:04:09,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-04-05 10:04:09,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:04:09,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-04-05 10:04:09,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=1984, Unknown=0, NotChecked=0, Total=2256 [2022-04-05 10:04:09,412 INFO L87 Difference]: Start difference. First operand 12849 states and 18800 transitions. Second operand has 48 states, 48 states have (on average 15.125) internal successors, (726), 47 states have internal predecessors, (726), 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) [2022-04-05 10:04:11,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:13,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:15,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:17,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:19,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:21,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:22,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:04:24,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:04,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:04,480 INFO L93 Difference]: Finished difference Result 286948 states and 408972 transitions. [2022-04-05 10:06:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 627 states. [2022-04-05 10:06:04,481 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 15.125) internal successors, (726), 47 states have internal predecessors, (726), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-05 10:06:04,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:04,864 INFO L225 Difference]: With dead ends: 286948 [2022-04-05 10:06:04,865 INFO L226 Difference]: Without dead ends: 274041 [2022-04-05 10:06:04,938 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2297 GetRequests, 1571 SyntacticMatches, 66 SemanticMatches, 660 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212119 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=41114, Invalid=396468, Unknown=0, NotChecked=0, Total=437582 [2022-04-05 10:06:04,939 INFO L913 BasicCegarLoop]: 1688 mSDtfsCounter, 12573 mSDsluCounter, 34187 mSDsCounter, 0 mSdLazyCounter, 33316 mSolverCounterSat, 2553 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12573 SdHoareTripleChecker+Valid, 35875 SdHoareTripleChecker+Invalid, 47378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2553 IncrementalHoareTripleChecker+Valid, 33316 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 11504 IncrementalHoareTripleChecker+Unchecked, 49.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:04,939 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12573 Valid, 35875 Invalid, 47378 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2553 Valid, 33316 Invalid, 5 Unknown, 11504 Unchecked, 49.8s Time] [2022-04-05 10:06:05,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274041 states. [2022-04-05 10:06:10,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274041 to 167881. [2022-04-05 10:06:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167881 states, 167876 states have (on average 1.4606078295885059) internal successors, (245201), 167876 states have internal predecessors, (245201), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:11,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167881 states to 167881 states and 245205 transitions. [2022-04-05 10:06:11,187 INFO L78 Accepts]: Start accepts. Automaton has 167881 states and 245205 transitions. Word has length 553 [2022-04-05 10:06:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:11,187 INFO L478 AbstractCegarLoop]: Abstraction has 167881 states and 245205 transitions. [2022-04-05 10:06:11,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 15.125) internal successors, (726), 47 states have internal predecessors, (726), 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) [2022-04-05 10:06:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 167881 states and 245205 transitions. [2022-04-05 10:06:11,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-04-05 10:06:11,687 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:11,688 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 10, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:11,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-05 10:06:11,888 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:06:11,888 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:11,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:11,889 INFO L85 PathProgramCache]: Analyzing trace with hash 922417619, now seen corresponding path program 1 times [2022-04-05 10:06:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:11,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706276085] [2022-04-05 10:06:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:11,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:12,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1289 proven. 0 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2022-04-05 10:06:12,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:12,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706276085] [2022-04-05 10:06:12,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706276085] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:12,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:12,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:12,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751489539] [2022-04-05 10:06:12,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:12,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:12,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:12,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:12,129 INFO L87 Difference]: Start difference. First operand 167881 states and 245205 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 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) [2022-04-05 10:06:13,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:15,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:16,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:20,758 INFO L93 Difference]: Finished difference Result 309164 states and 451138 transitions. [2022-04-05 10:06:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:06:20,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 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 555 [2022-04-05 10:06:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:21,072 INFO L225 Difference]: With dead ends: 309164 [2022-04-05 10:06:21,072 INFO L226 Difference]: Without dead ends: 141311 [2022-04-05 10:06:21,176 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:06:21,176 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 127 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:21,176 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 394 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 10:06:21,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141311 states. [2022-04-05 10:06:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141311 to 132298. [2022-04-05 10:06:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132298 states, 132293 states have (on average 1.4569553944653155) internal successors, (192745), 132293 states have internal predecessors, (192745), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132298 states to 132298 states and 192749 transitions. [2022-04-05 10:06:25,662 INFO L78 Accepts]: Start accepts. Automaton has 132298 states and 192749 transitions. Word has length 555 [2022-04-05 10:06:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:25,662 INFO L478 AbstractCegarLoop]: Abstraction has 132298 states and 192749 transitions. [2022-04-05 10:06:25,662 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 4 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) [2022-04-05 10:06:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 132298 states and 192749 transitions. [2022-04-05 10:06:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2022-04-05 10:06:25,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:25,976 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:25,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-04-05 10:06:25,976 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:25,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1190402383, now seen corresponding path program 1 times [2022-04-05 10:06:25,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:25,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171590128] [2022-04-05 10:06:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:25,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2917 backedges. 1174 proven. 134 refuted. 0 times theorem prover too weak. 1609 trivial. 0 not checked. [2022-04-05 10:06:26,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:26,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171590128] [2022-04-05 10:06:26,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171590128] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:06:26,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637717333] [2022-04-05 10:06:26,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:26,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:06:26,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:06:26,303 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) [2022-04-05 10:06:26,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-05 10:06:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:27,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 10:06:27,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:06:27,619 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:06:27,619 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 [2022-04-05 10:06:27,656 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:06:27,657 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 [2022-04-05 10:06:27,731 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 [2022-04-05 10:06:28,041 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:06:28,041 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 [2022-04-05 10:06:28,058 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 [2022-04-05 10:06:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2917 backedges. 1168 proven. 317 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2022-04-05 10:06:28,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:06:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2917 backedges. 1143 proven. 0 refuted. 0 times theorem prover too weak. 1774 trivial. 0 not checked. [2022-04-05 10:06:28,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637717333] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:06:28,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:06:28,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-05 10:06:28,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882625104] [2022-04-05 10:06:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:28,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:06:28,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:28,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:06:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 10:06:28,678 INFO L87 Difference]: Start difference. First operand 132298 states and 192749 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:33,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:33,403 INFO L93 Difference]: Finished difference Result 271427 states and 394597 transitions. [2022-04-05 10:06:33,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:06:33,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 562 [2022-04-05 10:06:33,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:33,591 INFO L225 Difference]: With dead ends: 271427 [2022-04-05 10:06:33,592 INFO L226 Difference]: Without dead ends: 139157 [2022-04-05 10:06:33,679 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1134 GetRequests, 1125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-05 10:06:33,679 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 141 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:33,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 410 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-05 10:06:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139157 states. [2022-04-05 10:06:37,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139157 to 129658. [2022-04-05 10:06:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129658 states, 129653 states have (on average 1.4423576778015164) internal successors, (187006), 129653 states have internal predecessors, (187006), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:37,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129658 states to 129658 states and 187010 transitions. [2022-04-05 10:06:37,843 INFO L78 Accepts]: Start accepts. Automaton has 129658 states and 187010 transitions. Word has length 562 [2022-04-05 10:06:37,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:37,843 INFO L478 AbstractCegarLoop]: Abstraction has 129658 states and 187010 transitions. [2022-04-05 10:06:37,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 129658 states and 187010 transitions. [2022-04-05 10:06:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2022-04-05 10:06:37,986 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:37,986 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:38,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-05 10:06:38,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:06:38,187 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:38,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash -784936697, now seen corresponding path program 1 times [2022-04-05 10:06:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:38,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614438703] [2022-04-05 10:06:38,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:38,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:38,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3006 backedges. 1404 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2022-04-05 10:06:38,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:38,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614438703] [2022-04-05 10:06:38,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614438703] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:38,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:38,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:38,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085395792] [2022-04-05 10:06:38,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:38,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:38,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:38,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:38,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:38,396 INFO L87 Difference]: Start difference. First operand 129658 states and 187010 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:39,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:41,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:43,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:47,915 INFO L93 Difference]: Finished difference Result 261019 states and 376051 transitions. [2022-04-05 10:06:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:06:47,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 563 [2022-04-05 10:06:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:48,165 INFO L225 Difference]: With dead ends: 261019 [2022-04-05 10:06:48,165 INFO L226 Difference]: Without dead ends: 131389 [2022-04-05 10:06:48,258 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:06:48,259 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 27 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:48,259 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 613 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 10:06:48,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131389 states. [2022-04-05 10:06:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131389 to 129658. [2022-04-05 10:06:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129658 states, 129653 states have (on average 1.4406531279646442) internal successors, (186785), 129653 states have internal predecessors, (186785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129658 states to 129658 states and 186789 transitions. [2022-04-05 10:06:53,006 INFO L78 Accepts]: Start accepts. Automaton has 129658 states and 186789 transitions. Word has length 563 [2022-04-05 10:06:53,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:06:53,007 INFO L478 AbstractCegarLoop]: Abstraction has 129658 states and 186789 transitions. [2022-04-05 10:06:53,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 129658 states and 186789 transitions. [2022-04-05 10:06:53,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-04-05 10:06:53,139 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:06:53,140 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:06:53,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-04-05 10:06:53,140 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:06:53,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:06:53,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1863958088, now seen corresponding path program 1 times [2022-04-05 10:06:53,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:06:53,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099490563] [2022-04-05 10:06:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:06:53,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:06:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:06:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:06:53,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3021 backedges. 1419 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2022-04-05 10:06:53,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:06:53,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099490563] [2022-04-05 10:06:53,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099490563] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:06:53,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:06:53,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:06:53,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932814372] [2022-04-05 10:06:53,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:06:53,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:06:53,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:06:53,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:06:53,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:06:53,499 INFO L87 Difference]: Start difference. First operand 129658 states and 186789 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:06:55,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:06:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:06:59,503 INFO L93 Difference]: Finished difference Result 261019 states and 375609 transitions. [2022-04-05 10:06:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:06:59,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 564 [2022-04-05 10:06:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:06:59,681 INFO L225 Difference]: With dead ends: 261019 [2022-04-05 10:06:59,681 INFO L226 Difference]: Without dead ends: 131389 [2022-04-05 10:06:59,755 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:06:59,756 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 25 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:06:59,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 611 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 418 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 10:06:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131389 states. [2022-04-05 10:07:03,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131389 to 129658. [2022-04-05 10:07:03,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129658 states, 129653 states have (on average 1.4389485781277718) internal successors, (186564), 129653 states have internal predecessors, (186564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129658 states to 129658 states and 186568 transitions. [2022-04-05 10:07:03,933 INFO L78 Accepts]: Start accepts. Automaton has 129658 states and 186568 transitions. Word has length 564 [2022-04-05 10:07:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:03,933 INFO L478 AbstractCegarLoop]: Abstraction has 129658 states and 186568 transitions. [2022-04-05 10:07:03,933 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 129658 states and 186568 transitions. [2022-04-05 10:07:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-04-05 10:07:04,068 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:04,069 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:04,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-04-05 10:07:04,069 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:04,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1151583762, now seen corresponding path program 1 times [2022-04-05 10:07:04,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:04,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894498188] [2022-04-05 10:07:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:04,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 1434 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2022-04-05 10:07:04,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:04,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894498188] [2022-04-05 10:07:04,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894498188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:07:04,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:07:04,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:07:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395778554] [2022-04-05 10:07:04,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:04,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:07:04,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:04,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:07:04,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:07:04,452 INFO L87 Difference]: Start difference. First operand 129658 states and 186568 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:06,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:08,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:10,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:11,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:15,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:15,736 INFO L93 Difference]: Finished difference Result 260374 states and 374468 transitions. [2022-04-05 10:07:15,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:15,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 565 [2022-04-05 10:07:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:15,918 INFO L225 Difference]: With dead ends: 260374 [2022-04-05 10:07:15,918 INFO L226 Difference]: Without dead ends: 130744 [2022-04-05 10:07:15,994 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:07:15,995 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 21 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:15,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 605 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-04-05 10:07:16,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130744 states. [2022-04-05 10:07:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130744 to 129658. [2022-04-05 10:07:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129658 states, 129653 states have (on average 1.4372440282908996) internal successors, (186343), 129653 states have internal predecessors, (186343), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129658 states to 129658 states and 186347 transitions. [2022-04-05 10:07:19,980 INFO L78 Accepts]: Start accepts. Automaton has 129658 states and 186347 transitions. Word has length 565 [2022-04-05 10:07:19,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:19,981 INFO L478 AbstractCegarLoop]: Abstraction has 129658 states and 186347 transitions. [2022-04-05 10:07:19,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:19,981 INFO L276 IsEmpty]: Start isEmpty. Operand 129658 states and 186347 transitions. [2022-04-05 10:07:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2022-04-05 10:07:20,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:20,131 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-05 10:07:20,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-04-05 10:07:20,132 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:20,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:20,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1530323510, now seen corresponding path program 1 times [2022-04-05 10:07:20,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:20,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826067277] [2022-04-05 10:07:20,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:20,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 1307 proven. 44 refuted. 0 times theorem prover too weak. 1726 trivial. 0 not checked. [2022-04-05 10:07:20,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:20,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826067277] [2022-04-05 10:07:20,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826067277] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:20,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947549404] [2022-04-05 10:07:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:20,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:07:20,345 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:07:20,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-05 10:07:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:21,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 10:07:21,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:07:21,964 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:21,964 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 [2022-04-05 10:07:21,997 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:07:21,997 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 [2022-04-05 10:07:22,053 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 [2022-04-05 10:07:22,360 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:22,360 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 [2022-04-05 10:07:22,392 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 [2022-04-05 10:07:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 1302 proven. 236 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-04-05 10:07:22,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:07:23,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 1304 proven. 0 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2022-04-05 10:07:23,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947549404] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:23,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:07:23,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-05 10:07:23,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228188334] [2022-04-05 10:07:23,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:23,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:07:23,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:23,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:07:23,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 10:07:23,018 INFO L87 Difference]: Start difference. First operand 129658 states and 186347 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2022-04-05 10:07:25,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:29,332 INFO L93 Difference]: Finished difference Result 267061 states and 382884 transitions. [2022-04-05 10:07:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:07:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 568 [2022-04-05 10:07:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:29,510 INFO L225 Difference]: With dead ends: 267061 [2022-04-05 10:07:29,510 INFO L226 Difference]: Without dead ends: 137431 [2022-04-05 10:07:29,680 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-05 10:07:29,681 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 130 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:29,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 457 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 241 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-05 10:07:29,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137431 states. [2022-04-05 10:07:33,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137431 to 120236. [2022-04-05 10:07:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120236 states, 120231 states have (on average 1.4180951668039026) internal successors, (170499), 120231 states have internal predecessors, (170499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120236 states to 120236 states and 170503 transitions. [2022-04-05 10:07:33,457 INFO L78 Accepts]: Start accepts. Automaton has 120236 states and 170503 transitions. Word has length 568 [2022-04-05 10:07:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:33,457 INFO L478 AbstractCegarLoop]: Abstraction has 120236 states and 170503 transitions. [2022-04-05 10:07:33,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2022-04-05 10:07:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 120236 states and 170503 transitions. [2022-04-05 10:07:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2022-04-05 10:07:33,587 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:33,587 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:33,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-05 10:07:33,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:33,788 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:33,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1870666137, now seen corresponding path program 1 times [2022-04-05 10:07:33,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:33,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86150012] [2022-04-05 10:07:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 1319 proven. 35 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2022-04-05 10:07:34,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86150012] [2022-04-05 10:07:34,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86150012] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786209324] [2022-04-05 10:07:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:34,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:34,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:07:34,171 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:07:34,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-05 10:07:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:35,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2631 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 10:07:35,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:07:35,694 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:35,695 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 [2022-04-05 10:07:35,729 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:07:35,729 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 [2022-04-05 10:07:35,780 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 [2022-04-05 10:07:36,082 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:07:36,083 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 [2022-04-05 10:07:36,126 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 [2022-04-05 10:07:36,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 1314 proven. 227 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-04-05 10:07:36,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:07:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3091 backedges. 1318 proven. 0 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2022-04-05 10:07:36,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786209324] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:07:36,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:07:36,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-05 10:07:36,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736909011] [2022-04-05 10:07:36,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:36,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:07:36,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:36,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:07:36,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 10:07:36,742 INFO L87 Difference]: Start difference. First operand 120236 states and 170503 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2022-04-05 10:07:38,030 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 [] [2022-04-05 10:07:42,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:42,110 INFO L93 Difference]: Finished difference Result 242430 states and 343502 transitions. [2022-04-05 10:07:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:07:42,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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 569 [2022-04-05 10:07:42,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:42,289 INFO L225 Difference]: With dead ends: 242430 [2022-04-05 10:07:42,289 INFO L226 Difference]: Without dead ends: 122222 [2022-04-05 10:07:42,357 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1148 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-05 10:07:42,358 INFO L913 BasicCegarLoop]: 146 mSDtfsCounter, 129 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:42,358 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 410 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-05 10:07:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122222 states. [2022-04-05 10:07:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122222 to 114101. [2022-04-05 10:07:45,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114101 states, 114096 states have (on average 1.4016792876174449) internal successors, (159926), 114096 states have internal predecessors, (159926), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:46,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114101 states to 114101 states and 159930 transitions. [2022-04-05 10:07:46,097 INFO L78 Accepts]: Start accepts. Automaton has 114101 states and 159930 transitions. Word has length 569 [2022-04-05 10:07:46,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:07:46,097 INFO L478 AbstractCegarLoop]: Abstraction has 114101 states and 159930 transitions. [2022-04-05 10:07:46,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2022-04-05 10:07:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 114101 states and 159930 transitions. [2022-04-05 10:07:46,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-04-05 10:07:46,226 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:07:46,227 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 13, 13, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:07:46,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-05 10:07:46,427 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:07:46,427 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:07:46,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:07:46,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1775597631, now seen corresponding path program 1 times [2022-04-05 10:07:46,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:07:46,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295621118] [2022-04-05 10:07:46,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:07:46,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:07:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:46,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:07:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:07:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3131 backedges. 1143 proven. 0 refuted. 0 times theorem prover too weak. 1988 trivial. 0 not checked. [2022-04-05 10:07:46,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:07:46,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295621118] [2022-04-05 10:07:46,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295621118] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:07:46,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:07:46,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:07:46,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720626856] [2022-04-05 10:07:46,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:07:46,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:07:46,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:07:46,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:07:46,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:07:46,837 INFO L87 Difference]: Start difference. First operand 114101 states and 159930 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:07:48,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:50,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:52,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:07:55,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:07:55,992 INFO L93 Difference]: Finished difference Result 230776 states and 323316 transitions. [2022-04-05 10:07:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:07:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 575 [2022-04-05 10:07:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:07:56,150 INFO L225 Difference]: With dead ends: 230776 [2022-04-05 10:07:56,151 INFO L226 Difference]: Without dead ends: 116703 [2022-04-05 10:07:56,232 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:07:56,232 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 35 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 10:07:56,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 602 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 10:07:56,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116703 states. [2022-04-05 10:07:59,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116703 to 113857. [2022-04-05 10:07:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113857 states, 113852 states have (on average 1.3995011066999261) internal successors, (159336), 113852 states have internal predecessors, (159336), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:08:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113857 states to 113857 states and 159340 transitions. [2022-04-05 10:08:00,083 INFO L78 Accepts]: Start accepts. Automaton has 113857 states and 159340 transitions. Word has length 575 [2022-04-05 10:08:00,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:08:00,083 INFO L478 AbstractCegarLoop]: Abstraction has 113857 states and 159340 transitions. [2022-04-05 10:08:00,084 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:08:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 113857 states and 159340 transitions. [2022-04-05 10:08:00,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2022-04-05 10:08:00,212 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:08:00,212 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:08:00,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-04-05 10:08:00,212 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:08:00,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:08:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1483251476, now seen corresponding path program 2 times [2022-04-05 10:08:00,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:08:00,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028884525] [2022-04-05 10:08:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:08:00,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:08:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:08:00,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:08:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:08:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2022-04-05 10:08:00,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:08:00,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028884525] [2022-04-05 10:08:00,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028884525] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:08:00,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:08:00,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 10:08:00,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697510459] [2022-04-05 10:08:00,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:08:00,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 10:08:00,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:08:00,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 10:08:00,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 10:08:00,798 INFO L87 Difference]: Start difference. First operand 113857 states and 159340 transitions. Second operand has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:08:02,492 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 [] [2022-04-05 10:08:04,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:08:05,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:08:08,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:08:10,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:08:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:08:14,223 INFO L93 Difference]: Finished difference Result 227707 states and 318672 transitions. [2022-04-05 10:08:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 10:08:14,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 582 [2022-04-05 10:08:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:08:14,457 INFO L225 Difference]: With dead ends: 227707 [2022-04-05 10:08:14,457 INFO L226 Difference]: Without dead ends: 113857 [2022-04-05 10:08:14,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 10:08:14,521 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 7 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:08:14,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 901 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-04-05 10:08:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113857 states. [2022-04-05 10:08:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113857 to 113857. [2022-04-05 10:08:17,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113857 states, 113852 states have (on average 1.3994923233671785) internal successors, (159335), 113852 states have internal predecessors, (159335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:08:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113857 states to 113857 states and 159339 transitions. [2022-04-05 10:08:18,150 INFO L78 Accepts]: Start accepts. Automaton has 113857 states and 159339 transitions. Word has length 582 [2022-04-05 10:08:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:08:18,151 INFO L478 AbstractCegarLoop]: Abstraction has 113857 states and 159339 transitions. [2022-04-05 10:08:18,151 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:08:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 113857 states and 159339 transitions. [2022-04-05 10:08:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2022-04-05 10:08:18,436 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:08:18,436 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:08:18,436 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-04-05 10:08:18,436 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:08:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:08:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash -528177973, now seen corresponding path program 1 times [2022-04-05 10:08:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:08:18,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062371174] [2022-04-05 10:08:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:08:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:08:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:08:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:08:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:08:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3279 backedges. 1298 proven. 91 refuted. 0 times theorem prover too weak. 1890 trivial. 0 not checked. [2022-04-05 10:08:19,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:08:19,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062371174] [2022-04-05 10:08:19,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062371174] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:08:19,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895376824] [2022-04-05 10:08:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:08:19,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:08:19,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:08:19,597 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:08:19,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-05 10:08:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:08:21,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 163 conjunts are in the unsatisfiable core [2022-04-05 10:08:21,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:08:21,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:21,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-04-05 10:08:21,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:21,498 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 10:08:21,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 28 treesize of output 10 [2022-04-05 10:08:21,695 INFO L356 Elim1Store]: treesize reduction 50, result has 25.4 percent of original size [2022-04-05 10:08:21,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 90 [2022-04-05 10:08:22,039 INFO L356 Elim1Store]: treesize reduction 114, result has 49.8 percent of original size [2022-04-05 10:08:22,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 222 treesize of output 505 [2022-04-05 10:08:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:22,126 INFO L356 Elim1Store]: treesize reduction 123, result has 18.0 percent of original size [2022-04-05 10:08:22,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 624 treesize of output 586 [2022-04-05 10:08:22,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:22,264 INFO L356 Elim1Store]: treesize reduction 56, result has 49.5 percent of original size [2022-04-05 10:08:22,265 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 411 treesize of output 302 [2022-04-05 10:08:22,393 INFO L356 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-04-05 10:08:22,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 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 74 treesize of output 103 [2022-04-05 10:08:22,510 INFO L356 Elim1Store]: treesize reduction 43, result has 41.1 percent of original size [2022-04-05 10:08:22,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 73 treesize of output 111 [2022-04-05 10:08:22,563 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-04-05 10:08:22,563 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 94 treesize of output 49 [2022-04-05 10:08:22,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2022-04-05 10:08:22,857 INFO L356 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-04-05 10:08:22,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 206 treesize of output 178 [2022-04-05 10:08:23,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 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 238 treesize of output 354 [2022-04-05 10:08:23,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 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 271 treesize of output 385 [2022-04-05 10:08:23,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 285 treesize of output 399 [2022-04-05 10:08:23,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:23,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 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 205 treesize of output 333 [2022-04-05 10:08:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:23,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 31 [2022-04-05 10:08:23,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:23,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 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 193 treesize of output 321 [2022-04-05 10:08:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:23,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2022-04-05 10:08:24,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:24,043 INFO L356 Elim1Store]: treesize reduction 62, result has 1.6 percent of original size [2022-04-05 10:08:24,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 534 treesize of output 448 [2022-04-05 10:08:24,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:24,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 5 [2022-04-05 10:08:24,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:08:24,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 5 [2022-04-05 10:08:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:28,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 24 [2022-04-05 10:08:28,787 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-05 10:08:28,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 36 [2022-04-05 10:08:29,178 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-05 10:08:29,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 36 [2022-04-05 10:08:29,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:29,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 18 [2022-04-05 10:08:29,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:29,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 24 [2022-04-05 10:08:29,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:29,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 24 [2022-04-05 10:08:30,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:30,478 INFO L356 Elim1Store]: treesize reduction 69, result has 28.1 percent of original size [2022-04-05 10:08:30,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5549 treesize of output 5479 [2022-04-05 10:08:44,337 INFO L356 Elim1Store]: treesize reduction 15, result has 16.7 percent of original size [2022-04-05 10:08:44,337 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 514 treesize of output 481 [2022-04-05 10:08:44,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 341 [2022-04-05 10:08:44,778 INFO L356 Elim1Store]: treesize reduction 35, result has 7.9 percent of original size [2022-04-05 10:08:44,779 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 315 [2022-04-05 10:08:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 61 treesize of output 18 [2022-04-05 10:08:44,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:44,822 INFO L356 Elim1Store]: treesize reduction 151, result has 0.7 percent of original size [2022-04-05 10:08:44,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 175 treesize of output 131 [2022-04-05 10:08:45,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-04-05 10:08:45,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2022-04-05 10:08:45,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2022-04-05 10:08:45,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-04-05 10:08:45,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,507 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 25 treesize of output 24 [2022-04-05 10:08:45,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 10:08:45,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,523 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 25 treesize of output 24 [2022-04-05 10:08:45,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 10:08:45,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,764 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 41 treesize of output 23 [2022-04-05 10:08:45,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,787 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 10:08:45,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 56 [2022-04-05 10:08:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:45,855 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 10:08:45,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 48 [2022-04-05 10:08:46,093 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 [2022-04-05 10:08:46,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,100 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 10:08:46,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2022-04-05 10:08:46,128 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-04-05 10:08:46,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-04-05 10:08:46,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,155 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 10:08:46,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 94 [2022-04-05 10:08:46,158 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 [2022-04-05 10:08:46,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,271 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 102 treesize of output 95 [2022-04-05 10:08:46,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,292 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 10:08:46,292 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 102 treesize of output 126 [2022-04-05 10:08:46,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:46,296 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 127 treesize of output 105 [2022-04-05 10:08:47,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 136 [2022-04-05 10:08:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,215 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 10:08:47,215 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 151 treesize of output 138 [2022-04-05 10:08:47,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:47,235 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 151 treesize of output 123 [2022-04-05 10:08:48,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,737 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 41 treesize of output 40 [2022-04-05 10:08:48,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,765 INFO L356 Elim1Store]: treesize reduction 161, result has 21.1 percent of original size [2022-04-05 10:08:48,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 77 treesize of output 95 [2022-04-05 10:08:48,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,772 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 68 treesize of output 64 [2022-04-05 10:08:48,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,862 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 57 treesize of output 50 [2022-04-05 10:08:48,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,888 INFO L356 Elim1Store]: treesize reduction 131, result has 25.6 percent of original size [2022-04-05 10:08:48,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 106 [2022-04-05 10:08:48,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:48,893 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 91 treesize of output 81 [2022-04-05 10:08:49,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,739 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 129 treesize of output 87 [2022-04-05 10:08:49,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,756 INFO L356 Elim1Store]: treesize reduction 56, result has 29.1 percent of original size [2022-04-05 10:08:49,757 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 98 treesize of output 83 [2022-04-05 10:08:49,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,788 INFO L356 Elim1Store]: treesize reduction 59, result has 42.7 percent of original size [2022-04-05 10:08:49,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 81 [2022-04-05 10:08:49,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-04-05 10:08:49,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:08:49,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2022-04-05 10:08:50,396 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 22 treesize of output 10 [2022-04-05 10:08:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3279 backedges. 1688 proven. 1232 refuted. 52 times theorem prover too weak. 307 trivial. 0 not checked. [2022-04-05 10:08:50,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:08:52,175 INFO L356 Elim1Store]: treesize reduction 6, result has 92.8 percent of original size [2022-04-05 10:08:52,176 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 42786 treesize of output 42325 [2022-04-05 10:09:35,538 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:09:35,538 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 410 treesize of output 290 [2022-04-05 10:09:38,085 INFO L356 Elim1Store]: treesize reduction 882, result has 0.1 percent of original size [2022-04-05 10:09:38,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 5877 treesize of output 1 [2022-04-05 10:09:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3279 backedges. 1899 proven. 1011 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-04-05 10:09:38,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895376824] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 10:09:38,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 10:09:38,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 25, 17] total 46 [2022-04-05 10:09:38,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182495102] [2022-04-05 10:09:38,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 10:09:38,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-04-05 10:09:38,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:09:38,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-04-05 10:09:38,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=1739, Unknown=11, NotChecked=0, Total=2070 [2022-04-05 10:09:38,189 INFO L87 Difference]: Start difference. First operand 113857 states and 159339 transitions. Second operand has 46 states, 45 states have (on average 19.822222222222223) internal successors, (892), 43 states have internal predecessors, (892), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:09:39,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:42,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:44,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:46,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:47,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:48,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:50,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:09:51,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:10:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:10:01,765 INFO L93 Difference]: Finished difference Result 277695 states and 385199 transitions. [2022-04-05 10:10:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-04-05 10:10:01,765 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 19.822222222222223) internal successors, (892), 43 states have internal predecessors, (892), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 582 [2022-04-05 10:10:01,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:10:01,973 INFO L225 Difference]: With dead ends: 277695 [2022-04-05 10:10:01,973 INFO L226 Difference]: Without dead ends: 163826 [2022-04-05 10:10:02,032 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1170 SyntacticMatches, 10 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1859 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=717, Invalid=5275, Unknown=14, NotChecked=0, Total=6006 [2022-04-05 10:10:02,033 INFO L913 BasicCegarLoop]: 345 mSDtfsCounter, 1859 mSDsluCounter, 7080 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 125 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 7425 SdHoareTripleChecker+Invalid, 7014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 5301 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:10:02,033 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1859 Valid, 7425 Invalid, 7014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1586 Invalid, 2 Unknown, 5301 Unchecked, 14.9s Time] [2022-04-05 10:10:02,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163826 states.