/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.11.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:33:58,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:33:58,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:33:58,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:33:58,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:33:58,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:33:58,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:33:58,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:33:58,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:33:58,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:33:58,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:33:58,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:33:58,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:33:58,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:33:58,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:33:58,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:33:58,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:33:58,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:33:58,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:33:58,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:33:58,370 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:33:58,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:33:58,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:33:58,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:33:58,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:33:58,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:33:58,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:33:58,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:33:58,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:33:58,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:33:58,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:33:58,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:33:58,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:33:58,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:33:58,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:33:58,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:33:58,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:33:58,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:33:58,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:33:58,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:33:58,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:33:58,420 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:33:58,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:33:58,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:33:58,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:33:58,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:33:58,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:33:58,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:33:58,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:33:58,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:33:58,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:33:58,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:33:58,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:33:58,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:33:58,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:33:58,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:33:58,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:33:58,425 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:33:58,425 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:33:58,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:33:58,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:33:58,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:33:58,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:33:58,666 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:33:58,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-17 23:33:58,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf80b1577/545137220502465ab13d1761a389c861/FLAGc5850fa69 [2022-03-17 23:33:59,204 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:33:59,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-03-17 23:33:59,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf80b1577/545137220502465ab13d1761a389c861/FLAGc5850fa69 [2022-03-17 23:33:59,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf80b1577/545137220502465ab13d1761a389c861 [2022-03-17 23:33:59,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:33:59,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:33:59,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:33:59,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:33:59,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:33:59,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa64877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59, skipping insertion in model container [2022-03-17 23:33:59,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:33:59,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:33:59,634 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.11.i.cil-2.c[74369,74382] [2022-03-17 23:33:59,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:33:59,654 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:33:59,808 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.11.i.cil-2.c[74369,74382] [2022-03-17 23:33:59,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:33:59,828 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:33:59,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59 WrapperNode [2022-03-17 23:33:59,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:33:59,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:33:59,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:33:59,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:33:59,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:33:59,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:33:59,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:33:59,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:33:59,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (1/1) ... [2022-03-17 23:33:59,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:33:59,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:33:59,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 23:34:00,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 23:34:00,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:34:00,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:34:00,040 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:34:00,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:34:00,041 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:34:00,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:34:00,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:34:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:34:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:34:00,042 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:34:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:34:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:34:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:34:00,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:34:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:34:00,192 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:34:00,200 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:34:01,159 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:34:01,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:34:01,595 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:34:01,606 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:34:01,613 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:34:01,613 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:34:01,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:34:01 BoogieIcfgContainer [2022-03-17 23:34:01,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:34:01,616 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:34:01,616 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:34:01,617 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:34:01,619 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:34:01" (1/1) ... [2022-03-17 23:34:01,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:34:01 BasicIcfg [2022-03-17 23:34:01,656 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:34:01,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:34:01,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:34:01,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:34:01,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:33:59" (1/4) ... [2022-03-17 23:34:01,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9ad88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:01, skipping insertion in model container [2022-03-17 23:34:01,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:59" (2/4) ... [2022-03-17 23:34:01,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9ad88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:01, skipping insertion in model container [2022-03-17 23:34:01,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:34:01" (3/4) ... [2022-03-17 23:34:01,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9ad88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:34:01, skipping insertion in model container [2022-03-17 23:34:01,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:34:01" (4/4) ... [2022-03-17 23:34:01,662 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-2.cqvasr [2022-03-17 23:34:01,666 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:34:01,666 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:34:01,704 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:34:01,709 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 23:34:01,709 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:34:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:34:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-17 23:34:01,731 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:01,731 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:01,732 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:01,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:01,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-03-17 23:34:01,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:01,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070430807] [2022-03-17 23:34:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:01,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:02,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:02,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070430807] [2022-03-17 23:34:02,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070430807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:02,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:02,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:02,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736096699] [2022-03-17 23:34:02,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:02,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:02,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:02,334 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:05,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:05,113 INFO L93 Difference]: Finished difference Result 430 states and 727 transitions. [2022-03-17 23:34:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-17 23:34:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:05,125 INFO L225 Difference]: With dead ends: 430 [2022-03-17 23:34:05,125 INFO L226 Difference]: Without dead ends: 261 [2022-03-17 23:34:05,129 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:05,132 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:05,132 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-17 23:34:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-17 23:34:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 170. [2022-03-17 23:34:05,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-17 23:34:05,224 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-17 23:34:05,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:05,224 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-17 23:34:05,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:05,225 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-17 23:34:05,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-17 23:34:05,226 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:05,226 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:05,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:34:05,230 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:05,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:05,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1744879992, now seen corresponding path program 1 times [2022-03-17 23:34:05,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:05,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762466350] [2022-03-17 23:34:05,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:05,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:05,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:05,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762466350] [2022-03-17 23:34:05,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762466350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:05,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:05,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:05,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678472105] [2022-03-17 23:34:05,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:05,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:05,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:05,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:05,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:05,389 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:07,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:07,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:07,966 INFO L93 Difference]: Finished difference Result 444 states and 697 transitions. [2022-03-17 23:34:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:07,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-17 23:34:07,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:07,969 INFO L225 Difference]: With dead ends: 444 [2022-03-17 23:34:07,969 INFO L226 Difference]: Without dead ends: 289 [2022-03-17 23:34:07,970 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:07,971 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 134 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:07,971 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 342 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:34:07,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-03-17 23:34:07,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 199. [2022-03-17 23:34:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:07,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-17 23:34:07,984 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-17 23:34:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:07,984 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-17 23:34:07,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-17 23:34:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-17 23:34:07,986 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:07,986 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:07,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:34:07,987 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1748954430, now seen corresponding path program 1 times [2022-03-17 23:34:07,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:07,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373567734] [2022-03-17 23:34:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:08,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:08,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373567734] [2022-03-17 23:34:08,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373567734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:08,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:08,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:08,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574192127] [2022-03-17 23:34:08,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:08,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:08,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:08,144 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:09,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:11,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:12,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:14,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:15,483 INFO L93 Difference]: Finished difference Result 503 states and 800 transitions. [2022-03-17 23:34:15,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:15,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-17 23:34:15,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:15,486 INFO L225 Difference]: With dead ends: 503 [2022-03-17 23:34:15,486 INFO L226 Difference]: Without dead ends: 319 [2022-03-17 23:34:15,487 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:15,488 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:15,489 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:34:15,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-03-17 23:34:15,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 239. [2022-03-17 23:34:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-17 23:34:15,501 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 49 [2022-03-17 23:34:15,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:15,501 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-17 23:34:15,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:15,502 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-17 23:34:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 23:34:15,503 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:15,503 INFO L500 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] [2022-03-17 23:34:15,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:34:15,504 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1646418066, now seen corresponding path program 1 times [2022-03-17 23:34:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:15,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207483164] [2022-03-17 23:34:15,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:15,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:15,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:15,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:15,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207483164] [2022-03-17 23:34:15,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207483164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:15,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:15,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:15,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310502744] [2022-03-17 23:34:15,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:15,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:15,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:15,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:15,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:15,689 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. 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) [2022-03-17 23:34:16,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:18,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:20,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:22,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:22,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:22,879 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-03-17 23:34:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:22,879 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 [2022-03-17 23:34:22,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:22,881 INFO L225 Difference]: With dead ends: 553 [2022-03-17 23:34:22,881 INFO L226 Difference]: Without dead ends: 329 [2022-03-17 23:34:22,882 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:22,885 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 122 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:22,885 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 364 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 23:34:22,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-17 23:34:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 250. [2022-03-17 23:34:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-17 23:34:22,894 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 50 [2022-03-17 23:34:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:22,895 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-17 23:34:22,895 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) [2022-03-17 23:34:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-17 23:34:22,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 23:34:22,897 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:22,897 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:22,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:34:22,897 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1803301705, now seen corresponding path program 1 times [2022-03-17 23:34:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:22,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182982258] [2022-03-17 23:34:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-17 23:34:23,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:23,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182982258] [2022-03-17 23:34:23,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182982258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:23,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:23,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:23,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958631298] [2022-03-17 23:34:23,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:23,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:23,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:23,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:23,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:23,057 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:25,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:27,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:29,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:30,341 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-17 23:34:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:30,341 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 70 [2022-03-17 23:34:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:30,343 INFO L225 Difference]: With dead ends: 513 [2022-03-17 23:34:30,343 INFO L226 Difference]: Without dead ends: 278 [2022-03-17 23:34:30,344 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:30,345 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:30,345 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:34:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-17 23:34:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-17 23:34:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-17 23:34:30,354 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-17 23:34:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:30,354 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-17 23:34:30,355 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-17 23:34:30,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:34:30,356 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:30,357 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:30,357 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:34:30,357 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:30,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:30,357 INFO L85 PathProgramCache]: Analyzing trace with hash 63867932, now seen corresponding path program 1 times [2022-03-17 23:34:30,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:30,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915648748] [2022-03-17 23:34:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:30,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:34:30,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:30,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915648748] [2022-03-17 23:34:30,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915648748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:30,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:30,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:30,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933779961] [2022-03-17 23:34:30,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:30,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:30,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:30,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:30,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:30,474 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:31,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:33,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:35,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:37,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:37,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:37,980 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-17 23:34:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:37,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-17 23:34:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:37,982 INFO L225 Difference]: With dead ends: 513 [2022-03-17 23:34:37,982 INFO L226 Difference]: Without dead ends: 278 [2022-03-17 23:34:37,983 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:37,984 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:37,984 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 23:34:37,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-17 23:34:37,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-17 23:34:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:37,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-17 23:34:37,992 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-17 23:34:37,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:37,992 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-17 23:34:37,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:37,992 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-17 23:34:37,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:34:37,993 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:37,993 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:37,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:34:37,994 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1024321373, now seen corresponding path program 1 times [2022-03-17 23:34:37,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:37,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504093160] [2022-03-17 23:34:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:37,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:34:38,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:38,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504093160] [2022-03-17 23:34:38,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504093160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:38,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:38,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:38,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084445317] [2022-03-17 23:34:38,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:38,107 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:38,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:38,108 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:39,787 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 [] [2022-03-17 23:34:41,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:43,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:45,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:46,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:46,406 INFO L93 Difference]: Finished difference Result 574 states and 927 transitions. [2022-03-17 23:34:46,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:46,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:34:46,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:46,408 INFO L225 Difference]: With dead ends: 574 [2022-03-17 23:34:46,408 INFO L226 Difference]: Without dead ends: 339 [2022-03-17 23:34:46,409 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:46,409 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 150 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:46,409 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 366 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-17 23:34:46,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-17 23:34:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-17 23:34:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-17 23:34:46,417 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-17 23:34:46,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:46,417 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-17 23:34:46,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-17 23:34:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:34:46,418 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:46,418 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:46,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:34:46,419 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash 992055491, now seen corresponding path program 1 times [2022-03-17 23:34:46,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:46,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169205373] [2022-03-17 23:34:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:46,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:34:46,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:46,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169205373] [2022-03-17 23:34:46,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169205373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:46,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:46,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:46,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647504244] [2022-03-17 23:34:46,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:46,535 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:46,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:46,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:46,536 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:49,067 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 [] [2022-03-17 23:34:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:50,819 INFO L93 Difference]: Finished difference Result 512 states and 830 transitions. [2022-03-17 23:34:50,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:50,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:34:50,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:50,821 INFO L225 Difference]: With dead ends: 512 [2022-03-17 23:34:50,821 INFO L226 Difference]: Without dead ends: 277 [2022-03-17 23:34:50,822 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:50,823 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:50,823 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:34:50,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-03-17 23:34:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 261. [2022-03-17 23:34:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6328125) internal successors, (418), 256 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 422 transitions. [2022-03-17 23:34:50,830 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 422 transitions. Word has length 84 [2022-03-17 23:34:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:50,830 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 422 transitions. [2022-03-17 23:34:50,830 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 422 transitions. [2022-03-17 23:34:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:34:50,831 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:50,831 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:50,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:34:50,832 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:50,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1577446659, now seen corresponding path program 1 times [2022-03-17 23:34:50,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:50,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633049184] [2022-03-17 23:34:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:50,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:34:50,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:50,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633049184] [2022-03-17 23:34:50,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633049184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:50,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:50,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:50,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963310544] [2022-03-17 23:34:50,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:50,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:50,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:50,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:50,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:50,949 INFO L87 Difference]: Start difference. First operand 261 states and 422 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:52,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:55,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:55,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:55,653 INFO L93 Difference]: Finished difference Result 574 states and 919 transitions. [2022-03-17 23:34:55,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:55,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:34:55,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:55,655 INFO L225 Difference]: With dead ends: 574 [2022-03-17 23:34:55,655 INFO L226 Difference]: Without dead ends: 339 [2022-03-17 23:34:55,656 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:55,657 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 143 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:55,657 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 366 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:34:55,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-17 23:34:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 261. [2022-03-17 23:34:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:55,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-17 23:34:55,664 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-17 23:34:55,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:55,664 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-17 23:34:55,664 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-17 23:34:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:34:55,665 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:55,666 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:55,666 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:34:55,666 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:55,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:55,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1333437405, now seen corresponding path program 1 times [2022-03-17 23:34:55,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:55,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562988465] [2022-03-17 23:34:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:55,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:55,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:34:55,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:55,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562988465] [2022-03-17 23:34:55,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562988465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:55,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:55,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:55,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848473659] [2022-03-17 23:34:55,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:55,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:55,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:55,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:55,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:55,794 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:58,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:00,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:01,475 INFO L93 Difference]: Finished difference Result 573 states and 911 transitions. [2022-03-17 23:35:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:01,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:35:01,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:01,477 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:35:01,478 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:35:01,478 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:01,479 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 141 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:01,479 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:35:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:35:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-17 23:35:01,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-17 23:35:01,485 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-17 23:35:01,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:01,486 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-17 23:35:01,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-17 23:35:01,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-17 23:35:01,487 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:01,487 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:01,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:35:01,487 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:01,488 INFO L85 PathProgramCache]: Analyzing trace with hash -628613252, now seen corresponding path program 1 times [2022-03-17 23:35:01,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:01,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142880082] [2022-03-17 23:35:01,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:01,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:01,601 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:35:01,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:01,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142880082] [2022-03-17 23:35:01,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142880082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:01,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:01,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:01,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143170764] [2022-03-17 23:35:01,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:01,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:01,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:01,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:01,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:01,603 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:03,548 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 [] [2022-03-17 23:35:05,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:05,524 INFO L93 Difference]: Finished difference Result 573 states and 904 transitions. [2022-03-17 23:35:05,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:05,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-17 23:35:05,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:05,526 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:35:05,526 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:35:05,527 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:05,527 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 145 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:05,528 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 23:35:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:35:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-17 23:35:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5859375) internal successors, (406), 256 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 410 transitions. [2022-03-17 23:35:05,534 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 410 transitions. Word has length 85 [2022-03-17 23:35:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:05,535 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 410 transitions. [2022-03-17 23:35:05,535 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 410 transitions. [2022-03-17 23:35:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-17 23:35:05,536 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:05,536 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:05,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:35:05,536 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:05,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1762044185, now seen corresponding path program 1 times [2022-03-17 23:35:05,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:05,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248218937] [2022-03-17 23:35:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:05,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:35:05,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:05,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248218937] [2022-03-17 23:35:05,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248218937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:05,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:05,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:05,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213591749] [2022-03-17 23:35:05,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:05,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:05,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:05,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:05,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:05,638 INFO L87 Difference]: Start difference. First operand 261 states and 410 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:06,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:08,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:10,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:10,213 INFO L93 Difference]: Finished difference Result 573 states and 897 transitions. [2022-03-17 23:35:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:10,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-17 23:35:10,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:10,215 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:35:10,215 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:35:10,216 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:10,216 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 143 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:10,217 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:35:10,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:35:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 261. [2022-03-17 23:35:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5703125) internal successors, (402), 256 states have internal predecessors, (402), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 406 transitions. [2022-03-17 23:35:10,224 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 406 transitions. Word has length 86 [2022-03-17 23:35:10,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:10,224 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 406 transitions. [2022-03-17 23:35:10,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:10,224 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 406 transitions. [2022-03-17 23:35:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 23:35:10,227 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:10,227 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:10,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:35:10,227 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:10,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:10,228 INFO L85 PathProgramCache]: Analyzing trace with hash -67928033, now seen corresponding path program 1 times [2022-03-17 23:35:10,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:10,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815020788] [2022-03-17 23:35:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:10,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:35:10,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:10,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815020788] [2022-03-17 23:35:10,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815020788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:10,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:10,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538532619] [2022-03-17 23:35:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:10,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:10,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:10,388 INFO L87 Difference]: Start difference. First operand 261 states and 406 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:11,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:13,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:15,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:17,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:17,781 INFO L93 Difference]: Finished difference Result 499 states and 785 transitions. [2022-03-17 23:35:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:17,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 23:35:17,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:17,782 INFO L225 Difference]: With dead ends: 499 [2022-03-17 23:35:17,782 INFO L226 Difference]: Without dead ends: 264 [2022-03-17 23:35:17,783 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:17,783 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:17,783 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:35:17,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-17 23:35:17,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-17 23:35:17,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.56640625) internal successors, (401), 256 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 405 transitions. [2022-03-17 23:35:17,790 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 405 transitions. Word has length 87 [2022-03-17 23:35:17,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:17,790 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 405 transitions. [2022-03-17 23:35:17,790 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) [2022-03-17 23:35:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2022-03-17 23:35:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-17 23:35:17,791 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:17,791 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:17,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:35:17,792 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1151267150, now seen corresponding path program 1 times [2022-03-17 23:35:17,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:17,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644628681] [2022-03-17 23:35:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:17,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-17 23:35:17,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:17,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644628681] [2022-03-17 23:35:17,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644628681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:17,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:17,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237470170] [2022-03-17 23:35:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:17,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:17,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:17,900 INFO L87 Difference]: Start difference. First operand 261 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:19,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:20,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:20,274 INFO L93 Difference]: Finished difference Result 537 states and 839 transitions. [2022-03-17 23:35:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:20,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-17 23:35:20,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:20,276 INFO L225 Difference]: With dead ends: 537 [2022-03-17 23:35:20,276 INFO L226 Difference]: Without dead ends: 302 [2022-03-17 23:35:20,277 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:20,277 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 29 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:20,278 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 507 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:35:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-17 23:35:20,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-17 23:35:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5611510791366907) internal successors, (434), 278 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 438 transitions. [2022-03-17 23:35:20,284 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 438 transitions. Word has length 87 [2022-03-17 23:35:20,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:20,284 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 438 transitions. [2022-03-17 23:35:20,284 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 438 transitions. [2022-03-17 23:35:20,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-17 23:35:20,285 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:20,285 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:20,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:35:20,286 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:20,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1763344841, now seen corresponding path program 1 times [2022-03-17 23:35:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:20,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63777847] [2022-03-17 23:35:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:20,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:35:20,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:20,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63777847] [2022-03-17 23:35:20,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63777847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:20,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:20,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:20,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363441849] [2022-03-17 23:35:20,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:20,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:20,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:20,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:20,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:20,396 INFO L87 Difference]: Start difference. First operand 283 states and 438 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:23,271 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 [] [2022-03-17 23:35:23,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:23,853 INFO L93 Difference]: Finished difference Result 557 states and 869 transitions. [2022-03-17 23:35:23,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:23,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-17 23:35:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:23,855 INFO L225 Difference]: With dead ends: 557 [2022-03-17 23:35:23,855 INFO L226 Difference]: Without dead ends: 300 [2022-03-17 23:35:23,855 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:23,856 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 34 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:23,856 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:35:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-03-17 23:35:23,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 283. [2022-03-17 23:35:23,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5575539568345325) internal successors, (433), 278 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 437 transitions. [2022-03-17 23:35:23,863 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 437 transitions. Word has length 100 [2022-03-17 23:35:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:23,863 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 437 transitions. [2022-03-17 23:35:23,863 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 437 transitions. [2022-03-17 23:35:23,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-17 23:35:23,864 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:23,864 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:23,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:35:23,864 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:23,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash 183034376, now seen corresponding path program 1 times [2022-03-17 23:35:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:23,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109587808] [2022-03-17 23:35:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:23,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-17 23:35:23,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:23,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109587808] [2022-03-17 23:35:23,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109587808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:23,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:23,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:23,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789743968] [2022-03-17 23:35:23,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:23,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:23,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:23,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:23,979 INFO L87 Difference]: Start difference. First operand 283 states and 437 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:25,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:28,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:28,401 INFO L93 Difference]: Finished difference Result 568 states and 883 transitions. [2022-03-17 23:35:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-03-17 23:35:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:28,403 INFO L225 Difference]: With dead ends: 568 [2022-03-17 23:35:28,403 INFO L226 Difference]: Without dead ends: 311 [2022-03-17 23:35:28,404 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:28,404 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:28,405 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:35:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-17 23:35:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-17 23:35:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 294 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 460 transitions. [2022-03-17 23:35:28,412 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 460 transitions. Word has length 101 [2022-03-17 23:35:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:28,412 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 460 transitions. [2022-03-17 23:35:28,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 460 transitions. [2022-03-17 23:35:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-17 23:35:28,413 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:28,413 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:28,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:35:28,414 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:28,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:28,414 INFO L85 PathProgramCache]: Analyzing trace with hash 332221618, now seen corresponding path program 1 times [2022-03-17 23:35:28,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:28,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219292341] [2022-03-17 23:35:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:28,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:35:28,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:28,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219292341] [2022-03-17 23:35:28,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219292341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:28,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:28,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:28,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885493195] [2022-03-17 23:35:28,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:28,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:28,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:28,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:28,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:28,529 INFO L87 Difference]: Start difference. First operand 299 states and 460 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:29,808 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 [] [2022-03-17 23:35:31,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:32,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:34,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:34,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:34,847 INFO L93 Difference]: Finished difference Result 649 states and 999 transitions. [2022-03-17 23:35:34,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:34,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-03-17 23:35:34,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:34,849 INFO L225 Difference]: With dead ends: 649 [2022-03-17 23:35:34,849 INFO L226 Difference]: Without dead ends: 376 [2022-03-17 23:35:34,849 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:34,850 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 145 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:34,850 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 368 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:35:34,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-17 23:35:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 299. [2022-03-17 23:35:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-17 23:35:34,857 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 102 [2022-03-17 23:35:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:34,858 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-17 23:35:34,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-17 23:35:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-17 23:35:34,859 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:34,859 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:34,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:35:34,859 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:34,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:34,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1369020480, now seen corresponding path program 1 times [2022-03-17 23:35:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:34,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68762119] [2022-03-17 23:35:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:34,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:34,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:34,974 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-17 23:35:34,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:34,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68762119] [2022-03-17 23:35:34,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68762119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:34,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:34,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:34,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546616576] [2022-03-17 23:35:34,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:34,976 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:34,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:34,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:34,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:34,976 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:36,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:38,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:39,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:39,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:39,761 INFO L93 Difference]: Finished difference Result 639 states and 976 transitions. [2022-03-17 23:35:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:39,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-17 23:35:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:39,762 INFO L225 Difference]: With dead ends: 639 [2022-03-17 23:35:39,762 INFO L226 Difference]: Without dead ends: 366 [2022-03-17 23:35:39,763 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:39,764 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 134 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:39,764 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 382 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:35:39,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-03-17 23:35:39,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 299. [2022-03-17 23:35:39,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5170068027210883) internal successors, (446), 294 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2022-03-17 23:35:39,771 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 105 [2022-03-17 23:35:39,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:39,771 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2022-03-17 23:35:39,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2022-03-17 23:35:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:35:39,772 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:39,772 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:39,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:35:39,772 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:39,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:39,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1497476783, now seen corresponding path program 1 times [2022-03-17 23:35:39,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:39,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716193549] [2022-03-17 23:35:39,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:39,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:35:39,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:39,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716193549] [2022-03-17 23:35:39,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716193549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:39,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:39,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:39,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434284207] [2022-03-17 23:35:39,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:39,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:39,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:39,899 INFO L87 Difference]: Start difference. First operand 299 states and 450 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:42,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:44,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:46,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:47,216 INFO L93 Difference]: Finished difference Result 651 states and 985 transitions. [2022-03-17 23:35:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:47,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 23:35:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:47,218 INFO L225 Difference]: With dead ends: 651 [2022-03-17 23:35:47,218 INFO L226 Difference]: Without dead ends: 378 [2022-03-17 23:35:47,218 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:47,219 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:47,219 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 503 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 485 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:35:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-03-17 23:35:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 327. [2022-03-17 23:35:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.5124223602484472) internal successors, (487), 322 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 491 transitions. [2022-03-17 23:35:47,226 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 491 transitions. Word has length 109 [2022-03-17 23:35:47,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:47,226 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 491 transitions. [2022-03-17 23:35:47,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:47,226 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 491 transitions. [2022-03-17 23:35:47,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:35:47,227 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:47,228 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:47,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:35:47,228 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash 330780464, now seen corresponding path program 1 times [2022-03-17 23:35:47,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:47,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058446540] [2022-03-17 23:35:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:47,340 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:35:47,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:47,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058446540] [2022-03-17 23:35:47,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058446540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:47,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:47,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:47,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327273572] [2022-03-17 23:35:47,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:47,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:47,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:47,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:47,342 INFO L87 Difference]: Start difference. First operand 327 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:50,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:52,458 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 [] [2022-03-17 23:35:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:52,894 INFO L93 Difference]: Finished difference Result 735 states and 1112 transitions. [2022-03-17 23:35:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:52,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 23:35:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:52,896 INFO L225 Difference]: With dead ends: 735 [2022-03-17 23:35:52,896 INFO L226 Difference]: Without dead ends: 434 [2022-03-17 23:35:52,897 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:52,897 INFO L912 BasicCegarLoop]: 155 mSDtfsCounter, 122 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:52,897 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 418 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:35:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-03-17 23:35:52,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 325. [2022-03-17 23:35:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.509375) internal successors, (483), 320 states have internal predecessors, (483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 487 transitions. [2022-03-17 23:35:52,919 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 487 transitions. Word has length 109 [2022-03-17 23:35:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:52,919 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 487 transitions. [2022-03-17 23:35:52,920 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 487 transitions. [2022-03-17 23:35:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:35:52,921 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:52,921 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:52,921 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:35:52,921 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:52,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:52,921 INFO L85 PathProgramCache]: Analyzing trace with hash 399122611, now seen corresponding path program 1 times [2022-03-17 23:35:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:52,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818303839] [2022-03-17 23:35:52,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:52,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:35:53,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:53,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818303839] [2022-03-17 23:35:53,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818303839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:53,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:53,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540451859] [2022-03-17 23:35:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:53,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:53,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:53,077 INFO L87 Difference]: Start difference. First operand 325 states and 487 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:55,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:57,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:59,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:00,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:00,017 INFO L93 Difference]: Finished difference Result 767 states and 1162 transitions. [2022-03-17 23:36:00,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:00,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:36:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:00,018 INFO L225 Difference]: With dead ends: 767 [2022-03-17 23:36:00,018 INFO L226 Difference]: Without dead ends: 468 [2022-03-17 23:36:00,019 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:00,019 INFO L912 BasicCegarLoop]: 132 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:00,020 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 372 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:36:00,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-17 23:36:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 389. [2022-03-17 23:36:00,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5078125) internal successors, (579), 384 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 583 transitions. [2022-03-17 23:36:00,029 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 583 transitions. Word has length 110 [2022-03-17 23:36:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:00,029 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 583 transitions. [2022-03-17 23:36:00,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:00,029 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 583 transitions. [2022-03-17 23:36:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:36:00,030 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:00,030 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:00,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:36:00,030 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:00,031 INFO L85 PathProgramCache]: Analyzing trace with hash -314587267, now seen corresponding path program 1 times [2022-03-17 23:36:00,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:00,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104763044] [2022-03-17 23:36:00,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:00,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:00,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104763044] [2022-03-17 23:36:00,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104763044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:00,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:00,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:00,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838488896] [2022-03-17 23:36:00,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:00,142 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:00,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:00,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:00,143 INFO L87 Difference]: Start difference. First operand 389 states and 583 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:03,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:04,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:04,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:04,999 INFO L93 Difference]: Finished difference Result 826 states and 1242 transitions. [2022-03-17 23:36:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:04,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:36:05,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:05,001 INFO L225 Difference]: With dead ends: 826 [2022-03-17 23:36:05,001 INFO L226 Difference]: Without dead ends: 463 [2022-03-17 23:36:05,002 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:05,003 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 67 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:05,003 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 509 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:36:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-03-17 23:36:05,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 418. [2022-03-17 23:36:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 413 states have (on average 1.5036319612590798) internal successors, (621), 413 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:05,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 625 transitions. [2022-03-17 23:36:05,012 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 625 transitions. Word has length 110 [2022-03-17 23:36:05,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:05,013 INFO L478 AbstractCegarLoop]: Abstraction has 418 states and 625 transitions. [2022-03-17 23:36:05,013 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:05,013 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 625 transitions. [2022-03-17 23:36:05,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:36:05,014 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:05,014 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:05,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:36:05,015 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2122434788, now seen corresponding path program 1 times [2022-03-17 23:36:05,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:05,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610525965] [2022-03-17 23:36:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-17 23:36:05,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:05,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610525965] [2022-03-17 23:36:05,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610525965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:05,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:05,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:05,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658204739] [2022-03-17 23:36:05,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:05,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:05,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:05,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:05,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:05,130 INFO L87 Difference]: Start difference. First operand 418 states and 625 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:07,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:09,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:10,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:10,234 INFO L93 Difference]: Finished difference Result 848 states and 1275 transitions. [2022-03-17 23:36:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:36:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:10,235 INFO L225 Difference]: With dead ends: 848 [2022-03-17 23:36:10,235 INFO L226 Difference]: Without dead ends: 456 [2022-03-17 23:36:10,239 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:10,240 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 28 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:10,240 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 589 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:36:10,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-17 23:36:10,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2022-03-17 23:36:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 437 states have (on average 1.5011441647597255) internal successors, (656), 437 states have internal predecessors, (656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 660 transitions. [2022-03-17 23:36:10,250 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 660 transitions. Word has length 110 [2022-03-17 23:36:10,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:10,250 INFO L478 AbstractCegarLoop]: Abstraction has 442 states and 660 transitions. [2022-03-17 23:36:10,251 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 660 transitions. [2022-03-17 23:36:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 23:36:10,252 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:10,252 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:10,252 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:36:10,253 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:10,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:10,254 INFO L85 PathProgramCache]: Analyzing trace with hash -555835195, now seen corresponding path program 1 times [2022-03-17 23:36:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:10,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099636391] [2022-03-17 23:36:10,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:10,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099636391] [2022-03-17 23:36:10,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099636391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:10,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:10,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:10,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442185669] [2022-03-17 23:36:10,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:10,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:10,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:10,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:10,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:10,369 INFO L87 Difference]: Start difference. First operand 442 states and 660 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:11,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:15,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:15,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:15,651 INFO L93 Difference]: Finished difference Result 965 states and 1448 transitions. [2022-03-17 23:36:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:15,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 23:36:15,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:15,653 INFO L225 Difference]: With dead ends: 965 [2022-03-17 23:36:15,653 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 23:36:15,654 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:15,654 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 111 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:15,654 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:36:15,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 23:36:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 479. [2022-03-17 23:36:15,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5021097046413503) internal successors, (712), 474 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:15,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 716 transitions. [2022-03-17 23:36:15,665 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 716 transitions. Word has length 122 [2022-03-17 23:36:15,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:15,665 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 716 transitions. [2022-03-17 23:36:15,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:15,665 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 716 transitions. [2022-03-17 23:36:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:36:15,666 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:15,667 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:15,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:36:15,667 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:15,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -380141108, now seen corresponding path program 1 times [2022-03-17 23:36:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:15,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269677528] [2022-03-17 23:36:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-17 23:36:15,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:15,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269677528] [2022-03-17 23:36:15,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269677528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:15,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:15,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:15,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746509544] [2022-03-17 23:36:15,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:15,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:15,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:15,779 INFO L87 Difference]: Start difference. First operand 479 states and 716 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:17,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:18,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:19,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:21,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:22,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:22,186 INFO L93 Difference]: Finished difference Result 975 states and 1462 transitions. [2022-03-17 23:36:22,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:36:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:22,189 INFO L225 Difference]: With dead ends: 975 [2022-03-17 23:36:22,189 INFO L226 Difference]: Without dead ends: 522 [2022-03-17 23:36:22,190 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:22,190 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 76 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:22,191 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 511 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:36:22,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-03-17 23:36:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 479. [2022-03-17 23:36:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 474 states have (on average 1.5) internal successors, (711), 474 states have internal predecessors, (711), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 715 transitions. [2022-03-17 23:36:22,229 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 715 transitions. Word has length 123 [2022-03-17 23:36:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:22,229 INFO L478 AbstractCegarLoop]: Abstraction has 479 states and 715 transitions. [2022-03-17 23:36:22,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 715 transitions. [2022-03-17 23:36:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:36:22,231 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:22,231 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:22,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:36:22,231 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1463132130, now seen corresponding path program 1 times [2022-03-17 23:36:22,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:22,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594845625] [2022-03-17 23:36:22,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:22,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:22,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:22,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594845625] [2022-03-17 23:36:22,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594845625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:22,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:22,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:22,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051746669] [2022-03-17 23:36:22,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:22,382 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:22,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:22,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:22,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:22,383 INFO L87 Difference]: Start difference. First operand 479 states and 715 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:24,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:25,813 INFO L93 Difference]: Finished difference Result 973 states and 1458 transitions. [2022-03-17 23:36:25,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:25,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:36:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:25,816 INFO L225 Difference]: With dead ends: 973 [2022-03-17 23:36:25,816 INFO L226 Difference]: Without dead ends: 520 [2022-03-17 23:36:25,816 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:25,817 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 52 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:25,817 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 515 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:36:25,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-03-17 23:36:25,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 490. [2022-03-17 23:36:25,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5010309278350515) internal successors, (728), 485 states have internal predecessors, (728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:25,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 732 transitions. [2022-03-17 23:36:25,827 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 732 transitions. Word has length 123 [2022-03-17 23:36:25,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:25,828 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 732 transitions. [2022-03-17 23:36:25,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:25,828 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 732 transitions. [2022-03-17 23:36:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:36:25,829 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:25,829 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:25,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:36:25,829 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:25,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:25,830 INFO L85 PathProgramCache]: Analyzing trace with hash 486911117, now seen corresponding path program 1 times [2022-03-17 23:36:25,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:25,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305609991] [2022-03-17 23:36:25,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:25,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-03-17 23:36:25,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:25,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305609991] [2022-03-17 23:36:25,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305609991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:25,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:25,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111807724] [2022-03-17 23:36:25,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:25,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:25,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:25,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:25,939 INFO L87 Difference]: Start difference. First operand 490 states and 732 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:27,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:28,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:28,350 INFO L93 Difference]: Finished difference Result 1019 states and 1528 transitions. [2022-03-17 23:36:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:28,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:36:28,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:28,352 INFO L225 Difference]: With dead ends: 1019 [2022-03-17 23:36:28,352 INFO L226 Difference]: Without dead ends: 555 [2022-03-17 23:36:28,353 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:28,353 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:28,354 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 364 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:36:28,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-17 23:36:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 490. [2022-03-17 23:36:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4845360824742269) internal successors, (720), 485 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 724 transitions. [2022-03-17 23:36:28,363 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 724 transitions. Word has length 123 [2022-03-17 23:36:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:28,363 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 724 transitions. [2022-03-17 23:36:28,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 724 transitions. [2022-03-17 23:36:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:28,365 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:28,365 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:28,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:36:28,365 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:28,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:28,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1679933841, now seen corresponding path program 1 times [2022-03-17 23:36:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:28,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358858528] [2022-03-17 23:36:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:28,505 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-17 23:36:28,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:28,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358858528] [2022-03-17 23:36:28,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358858528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:28,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:28,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:28,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371144983] [2022-03-17 23:36:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:28,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:28,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:28,507 INFO L87 Difference]: Start difference. First operand 490 states and 724 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:30,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:30,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:30,927 INFO L93 Difference]: Finished difference Result 1021 states and 1514 transitions. [2022-03-17 23:36:30,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:30,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:30,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:30,930 INFO L225 Difference]: With dead ends: 1021 [2022-03-17 23:36:30,930 INFO L226 Difference]: Without dead ends: 557 [2022-03-17 23:36:30,931 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:30,931 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 124 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:30,931 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:36:30,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-17 23:36:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 490. [2022-03-17 23:36:30,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.468041237113402) internal successors, (712), 485 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:30,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 716 transitions. [2022-03-17 23:36:30,941 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 716 transitions. Word has length 131 [2022-03-17 23:36:30,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:30,941 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 716 transitions. [2022-03-17 23:36:30,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 716 transitions. [2022-03-17 23:36:30,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:30,943 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:30,943 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:30,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:36:30,943 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:30,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:30,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1091438265, now seen corresponding path program 1 times [2022-03-17 23:36:30,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:30,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909217694] [2022-03-17 23:36:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:30,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:31,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:31,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909217694] [2022-03-17 23:36:31,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909217694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:31,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:31,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:31,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414205578] [2022-03-17 23:36:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:31,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:31,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:31,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:31,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:31,060 INFO L87 Difference]: Start difference. First operand 490 states and 716 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:33,793 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 [] [2022-03-17 23:36:35,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:35,643 INFO L93 Difference]: Finished difference Result 978 states and 1433 transitions. [2022-03-17 23:36:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:35,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:35,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:35,645 INFO L225 Difference]: With dead ends: 978 [2022-03-17 23:36:35,645 INFO L226 Difference]: Without dead ends: 514 [2022-03-17 23:36:35,646 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:36:35,647 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:35,647 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 535 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:36:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-03-17 23:36:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 493. [2022-03-17 23:36:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 488 states have (on average 1.4651639344262295) internal successors, (715), 488 states have internal predecessors, (715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 719 transitions. [2022-03-17 23:36:35,657 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 719 transitions. Word has length 131 [2022-03-17 23:36:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:35,657 INFO L478 AbstractCegarLoop]: Abstraction has 493 states and 719 transitions. [2022-03-17 23:36:35,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 719 transitions. [2022-03-17 23:36:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:35,658 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:35,658 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:35,659 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:36:35,659 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:35,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash 194878290, now seen corresponding path program 1 times [2022-03-17 23:36:35,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:35,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614112850] [2022-03-17 23:36:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:35,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-17 23:36:35,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:35,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614112850] [2022-03-17 23:36:35,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614112850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:35,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:35,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:36:35,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520544727] [2022-03-17 23:36:35,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:35,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:36:35,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:35,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:36:35,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:35,820 INFO L87 Difference]: Start difference. First operand 493 states and 719 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:37,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:38,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:38,138 INFO L93 Difference]: Finished difference Result 1422 states and 2093 transitions. [2022-03-17 23:36:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:36:38,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:38,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:38,141 INFO L225 Difference]: With dead ends: 1422 [2022-03-17 23:36:38,141 INFO L226 Difference]: Without dead ends: 955 [2022-03-17 23:36:38,142 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:38,142 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:38,143 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:36:38,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-03-17 23:36:38,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2022-03-17 23:36:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 950 states have (on average 1.4631578947368422) internal successors, (1390), 950 states have internal predecessors, (1390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1394 transitions. [2022-03-17 23:36:38,159 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1394 transitions. Word has length 131 [2022-03-17 23:36:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:38,159 INFO L478 AbstractCegarLoop]: Abstraction has 955 states and 1394 transitions. [2022-03-17 23:36:38,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1394 transitions. [2022-03-17 23:36:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:38,161 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:38,162 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:38,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:36:38,162 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:38,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1014363949, now seen corresponding path program 1 times [2022-03-17 23:36:38,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:38,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733421970] [2022-03-17 23:36:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:38,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-17 23:36:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:38,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733421970] [2022-03-17 23:36:38,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733421970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:38,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:38,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:36:38,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525041010] [2022-03-17 23:36:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:38,256 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:36:38,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:38,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:36:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:38,256 INFO L87 Difference]: Start difference. First operand 955 states and 1394 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:39,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:41,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:43,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:43,757 INFO L93 Difference]: Finished difference Result 1911 states and 2795 transitions. [2022-03-17 23:36:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:36:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:43,760 INFO L225 Difference]: With dead ends: 1911 [2022-03-17 23:36:43,760 INFO L226 Difference]: Without dead ends: 982 [2022-03-17 23:36:43,761 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:43,761 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:43,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:36:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-03-17 23:36:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 982. [2022-03-17 23:36:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 977 states have (on average 1.458546571136131) internal successors, (1425), 977 states have internal predecessors, (1425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1429 transitions. [2022-03-17 23:36:43,778 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1429 transitions. Word has length 131 [2022-03-17 23:36:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:43,778 INFO L478 AbstractCegarLoop]: Abstraction has 982 states and 1429 transitions. [2022-03-17 23:36:43,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1429 transitions. [2022-03-17 23:36:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:43,780 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:43,780 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:43,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:36:43,780 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:43,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:43,781 INFO L85 PathProgramCache]: Analyzing trace with hash -955143212, now seen corresponding path program 1 times [2022-03-17 23:36:43,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:43,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691420246] [2022-03-17 23:36:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:43,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-17 23:36:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:43,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691420246] [2022-03-17 23:36:43,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691420246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:43,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:43,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:36:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578374679] [2022-03-17 23:36:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:43,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:36:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:36:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:43,874 INFO L87 Difference]: Start difference. First operand 982 states and 1429 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:45,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:46,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:48,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:49,273 INFO L93 Difference]: Finished difference Result 1940 states and 2831 transitions. [2022-03-17 23:36:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:36:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:49,277 INFO L225 Difference]: With dead ends: 1940 [2022-03-17 23:36:49,277 INFO L226 Difference]: Without dead ends: 984 [2022-03-17 23:36:49,278 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:49,278 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:49,279 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:36:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-03-17 23:36:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 984. [2022-03-17 23:36:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 979 states have (on average 1.4576098059244127) internal successors, (1427), 979 states have internal predecessors, (1427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1431 transitions. [2022-03-17 23:36:49,320 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1431 transitions. Word has length 131 [2022-03-17 23:36:49,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:49,320 INFO L478 AbstractCegarLoop]: Abstraction has 984 states and 1431 transitions. [2022-03-17 23:36:49,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:49,320 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1431 transitions. [2022-03-17 23:36:49,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:36:49,322 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:49,322 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:49,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:36:49,322 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:49,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:49,323 INFO L85 PathProgramCache]: Analyzing trace with hash -763774951, now seen corresponding path program 1 times [2022-03-17 23:36:49,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:49,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497198005] [2022-03-17 23:36:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:49,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:49,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:36:49,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:49,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497198005] [2022-03-17 23:36:49,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497198005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:49,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:49,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:36:49,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613638667] [2022-03-17 23:36:49,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:49,443 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:36:49,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:49,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:36:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:49,444 INFO L87 Difference]: Start difference. First operand 984 states and 1431 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:50,509 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 [] [2022-03-17 23:36:51,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:51,830 INFO L93 Difference]: Finished difference Result 2407 states and 3519 transitions. [2022-03-17 23:36:51,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:36:51,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 23:36:51,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:51,834 INFO L225 Difference]: With dead ends: 2407 [2022-03-17 23:36:51,835 INFO L226 Difference]: Without dead ends: 1451 [2022-03-17 23:36:51,836 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:51,836 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:51,836 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:36:51,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-03-17 23:36:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1449. [2022-03-17 23:36:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1444 states have (on average 1.4632963988919667) internal successors, (2113), 1444 states have internal predecessors, (2113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2117 transitions. [2022-03-17 23:36:51,867 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2117 transitions. Word has length 133 [2022-03-17 23:36:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:51,868 INFO L478 AbstractCegarLoop]: Abstraction has 1449 states and 2117 transitions. [2022-03-17 23:36:51,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2117 transitions. [2022-03-17 23:36:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 23:36:51,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:51,870 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:51,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:36:51,870 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:51,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-03-17 23:36:51,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:51,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403150742] [2022-03-17 23:36:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:51,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-17 23:36:51,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:51,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403150742] [2022-03-17 23:36:51,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403150742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:51,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:51,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:36:51,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077369707] [2022-03-17 23:36:51,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:51,985 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:36:51,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:51,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:36:51,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:51,986 INFO L87 Difference]: Start difference. First operand 1449 states and 2117 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:53,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:54,290 INFO L93 Difference]: Finished difference Result 1918 states and 2807 transitions. [2022-03-17 23:36:54,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:36:54,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 23:36:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:54,295 INFO L225 Difference]: With dead ends: 1918 [2022-03-17 23:36:54,295 INFO L226 Difference]: Without dead ends: 1916 [2022-03-17 23:36:54,295 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:36:54,295 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:54,296 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:36:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-03-17 23:36:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2022-03-17 23:36:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1909 states have (on average 1.466736511262441) internal successors, (2800), 1909 states have internal predecessors, (2800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2804 transitions. [2022-03-17 23:36:54,344 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2804 transitions. Word has length 134 [2022-03-17 23:36:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:54,344 INFO L478 AbstractCegarLoop]: Abstraction has 1914 states and 2804 transitions. [2022-03-17 23:36:54,344 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2804 transitions. [2022-03-17 23:36:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 23:36:54,347 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:54,348 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:54,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:36:54,348 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:54,348 INFO L85 PathProgramCache]: Analyzing trace with hash 973334476, now seen corresponding path program 1 times [2022-03-17 23:36:54,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:54,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122750978] [2022-03-17 23:36:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:54,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:36:54,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:54,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122750978] [2022-03-17 23:36:54,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122750978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:54,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:54,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:54,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329392269] [2022-03-17 23:36:54,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:54,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:54,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:54,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:54,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:54,478 INFO L87 Difference]: Start difference. First operand 1914 states and 2804 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:55,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:57,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:58,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:00,833 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 [] [2022-03-17 23:37:01,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:01,335 INFO L93 Difference]: Finished difference Result 4062 states and 5945 transitions. [2022-03-17 23:37:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-17 23:37:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:01,340 INFO L225 Difference]: With dead ends: 4062 [2022-03-17 23:37:01,340 INFO L226 Difference]: Without dead ends: 2176 [2022-03-17 23:37:01,343 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:01,344 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 110 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:01,344 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 382 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:37:01,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2022-03-17 23:37:01,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 1914. [2022-03-17 23:37:01,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1909 states have (on average 1.462545835515977) internal successors, (2792), 1909 states have internal predecessors, (2792), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2796 transitions. [2022-03-17 23:37:01,385 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2796 transitions. Word has length 147 [2022-03-17 23:37:01,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:01,385 INFO L478 AbstractCegarLoop]: Abstraction has 1914 states and 2796 transitions. [2022-03-17 23:37:01,386 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:01,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2796 transitions. [2022-03-17 23:37:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:37:01,388 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:01,388 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:01,388 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:37:01,388 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash -147667805, now seen corresponding path program 1 times [2022-03-17 23:37:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:01,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491081336] [2022-03-17 23:37:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:01,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:37:01,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:01,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491081336] [2022-03-17 23:37:01,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491081336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:01,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:01,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:37:01,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769484147] [2022-03-17 23:37:01,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:01,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:01,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:01,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:01,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:01,506 INFO L87 Difference]: Start difference. First operand 1914 states and 2796 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) [2022-03-17 23:37:02,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:04,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:06,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:07,134 INFO L93 Difference]: Finished difference Result 4267 states and 6245 transitions. [2022-03-17 23:37:07,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:07,135 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 155 [2022-03-17 23:37:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:07,142 INFO L225 Difference]: With dead ends: 4267 [2022-03-17 23:37:07,143 INFO L226 Difference]: Without dead ends: 2381 [2022-03-17 23:37:07,145 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:07,146 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:07,146 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 426 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:37:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-03-17 23:37:07,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2379. [2022-03-17 23:37:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2374 states have (on average 1.4553496208930077) internal successors, (3455), 2374 states have internal predecessors, (3455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:07,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3459 transitions. [2022-03-17 23:37:07,195 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3459 transitions. Word has length 155 [2022-03-17 23:37:07,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:07,196 INFO L478 AbstractCegarLoop]: Abstraction has 2379 states and 3459 transitions. [2022-03-17 23:37:07,196 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) [2022-03-17 23:37:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3459 transitions. [2022-03-17 23:37:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 23:37:07,199 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:07,199 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:07,200 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:37:07,200 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:07,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash 45595843, now seen corresponding path program 1 times [2022-03-17 23:37:07,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:07,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126088564] [2022-03-17 23:37:07,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:07,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-17 23:37:07,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:07,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126088564] [2022-03-17 23:37:07,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126088564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:07,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:07,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:37:07,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767144795] [2022-03-17 23:37:07,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:07,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:07,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:07,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:07,328 INFO L87 Difference]: Start difference. First operand 2379 states and 3459 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:09,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:10,483 INFO L93 Difference]: Finished difference Result 5189 states and 7562 transitions. [2022-03-17 23:37:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 23:37:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:10,493 INFO L225 Difference]: With dead ends: 5189 [2022-03-17 23:37:10,493 INFO L226 Difference]: Without dead ends: 2838 [2022-03-17 23:37:10,497 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:10,497 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:10,498 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 576 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 23:37:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2022-03-17 23:37:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2838. [2022-03-17 23:37:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2838 states, 2833 states have (on average 1.4557006706671374) internal successors, (4124), 2833 states have internal predecessors, (4124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2838 states to 2838 states and 4128 transitions. [2022-03-17 23:37:10,579 INFO L78 Accepts]: Start accepts. Automaton has 2838 states and 4128 transitions. Word has length 172 [2022-03-17 23:37:10,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:10,580 INFO L478 AbstractCegarLoop]: Abstraction has 2838 states and 4128 transitions. [2022-03-17 23:37:10,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2838 states and 4128 transitions. [2022-03-17 23:37:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 23:37:10,586 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:10,586 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:10,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:37:10,586 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:10,587 INFO L85 PathProgramCache]: Analyzing trace with hash 169669090, now seen corresponding path program 1 times [2022-03-17 23:37:10,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:10,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728161516] [2022-03-17 23:37:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:10,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:37:10,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:10,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728161516] [2022-03-17 23:37:10,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728161516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:10,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:10,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:37:10,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34736067] [2022-03-17 23:37:10,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:10,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:10,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:10,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:10,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:10,732 INFO L87 Difference]: Start difference. First operand 2838 states and 4128 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:13,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:14,185 INFO L93 Difference]: Finished difference Result 6077 states and 8856 transitions. [2022-03-17 23:37:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 23:37:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:14,192 INFO L225 Difference]: With dead ends: 6077 [2022-03-17 23:37:14,192 INFO L226 Difference]: Without dead ends: 3267 [2022-03-17 23:37:14,196 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:14,197 INFO L912 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:14,197 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:37:14,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2022-03-17 23:37:14,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 3267. [2022-03-17 23:37:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 3262 states have (on average 1.4555487431023912) internal successors, (4748), 3262 states have internal predecessors, (4748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 4752 transitions. [2022-03-17 23:37:14,250 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 4752 transitions. Word has length 172 [2022-03-17 23:37:14,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:14,250 INFO L478 AbstractCegarLoop]: Abstraction has 3267 states and 4752 transitions. [2022-03-17 23:37:14,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 4752 transitions. [2022-03-17 23:37:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-17 23:37:14,284 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:14,285 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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] [2022-03-17 23:37:14,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:37:14,285 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash -961852132, now seen corresponding path program 1 times [2022-03-17 23:37:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:14,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807011279] [2022-03-17 23:37:14,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:14,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-17 23:37:14,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:14,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807011279] [2022-03-17 23:37:14,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807011279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:14,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:14,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268474129] [2022-03-17 23:37:14,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:14,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:14,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:14,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:14,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:14,453 INFO L87 Difference]: Start difference. First operand 3267 states and 4752 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:16,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:18,016 INFO L93 Difference]: Finished difference Result 7198 states and 10430 transitions. [2022-03-17 23:37:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:18,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-17 23:37:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:18,024 INFO L225 Difference]: With dead ends: 7198 [2022-03-17 23:37:18,025 INFO L226 Difference]: Without dead ends: 3959 [2022-03-17 23:37:18,030 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:18,030 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 103 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:18,030 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 385 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 23:37:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2022-03-17 23:37:18,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3528. [2022-03-17 23:37:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3523 states have (on average 1.4564291796764122) internal successors, (5131), 3523 states have internal predecessors, (5131), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5135 transitions. [2022-03-17 23:37:18,101 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5135 transitions. Word has length 247 [2022-03-17 23:37:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:18,102 INFO L478 AbstractCegarLoop]: Abstraction has 3528 states and 5135 transitions. [2022-03-17 23:37:18,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:18,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5135 transitions. [2022-03-17 23:37:18,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-17 23:37:18,107 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:18,108 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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] [2022-03-17 23:37:18,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:37:18,108 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:18,108 INFO L85 PathProgramCache]: Analyzing trace with hash -731922663, now seen corresponding path program 1 times [2022-03-17 23:37:18,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:18,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235434436] [2022-03-17 23:37:18,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:18,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-03-17 23:37:18,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:18,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235434436] [2022-03-17 23:37:18,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235434436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:18,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:18,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:18,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582415087] [2022-03-17 23:37:18,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:18,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:18,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:18,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:18,284 INFO L87 Difference]: Start difference. First operand 3528 states and 5135 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:20,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:20,711 INFO L93 Difference]: Finished difference Result 7182 states and 10451 transitions. [2022-03-17 23:37:20,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:20,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-17 23:37:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:20,717 INFO L225 Difference]: With dead ends: 7182 [2022-03-17 23:37:20,717 INFO L226 Difference]: Without dead ends: 3682 [2022-03-17 23:37:20,721 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:20,721 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 39 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:20,722 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 572 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:37:20,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2022-03-17 23:37:20,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3528. [2022-03-17 23:37:20,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3523 states have (on average 1.4544422367300596) internal successors, (5124), 3523 states have internal predecessors, (5124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5128 transitions. [2022-03-17 23:37:20,789 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5128 transitions. Word has length 248 [2022-03-17 23:37:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:20,789 INFO L478 AbstractCegarLoop]: Abstraction has 3528 states and 5128 transitions. [2022-03-17 23:37:20,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:20,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5128 transitions. [2022-03-17 23:37:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-17 23:37:20,796 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:20,796 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-17 23:37:20,796 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:37:20,796 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:20,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:20,797 INFO L85 PathProgramCache]: Analyzing trace with hash 353970598, now seen corresponding path program 1 times [2022-03-17 23:37:20,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:20,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544760072] [2022-03-17 23:37:20,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:20,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:20,996 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 23:37:20,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:20,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544760072] [2022-03-17 23:37:20,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544760072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:20,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:20,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:20,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188228397] [2022-03-17 23:37:20,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:20,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:20,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:21,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:21,001 INFO L87 Difference]: Start difference. First operand 3528 states and 5128 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:23,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:23,476 INFO L93 Difference]: Finished difference Result 7497 states and 10864 transitions. [2022-03-17 23:37:23,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:23,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-03-17 23:37:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:23,483 INFO L225 Difference]: With dead ends: 7497 [2022-03-17 23:37:23,483 INFO L226 Difference]: Without dead ends: 3983 [2022-03-17 23:37:23,488 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:23,489 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 43 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:23,489 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 616 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:37:23,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2022-03-17 23:37:23,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3822. [2022-03-17 23:37:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4542834686926907) internal successors, (5551), 3817 states have internal predecessors, (5551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5555 transitions. [2022-03-17 23:37:23,564 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5555 transitions. Word has length 255 [2022-03-17 23:37:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:23,564 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5555 transitions. [2022-03-17 23:37:23,564 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5555 transitions. [2022-03-17 23:37:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-03-17 23:37:23,570 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:23,571 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 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] [2022-03-17 23:37:23,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:37:23,571 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:23,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2107997919, now seen corresponding path program 1 times [2022-03-17 23:37:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:23,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172463682] [2022-03-17 23:37:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-17 23:37:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:23,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172463682] [2022-03-17 23:37:23,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172463682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:23,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:23,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146406168] [2022-03-17 23:37:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:23,780 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:23,781 INFO L87 Difference]: Start difference. First operand 3822 states and 5555 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:25,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:27,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:29,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:30,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:31,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:31,232 INFO L93 Difference]: Finished difference Result 7763 states and 11249 transitions. [2022-03-17 23:37:31,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:31,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-03-17 23:37:31,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:31,239 INFO L225 Difference]: With dead ends: 7763 [2022-03-17 23:37:31,240 INFO L226 Difference]: Without dead ends: 3969 [2022-03-17 23:37:31,246 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:31,246 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 55 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:31,246 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 613 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:37:31,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-03-17 23:37:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-03-17 23:37:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4524495677233429) internal successors, (5544), 3817 states have internal predecessors, (5544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5548 transitions. [2022-03-17 23:37:31,320 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5548 transitions. Word has length 264 [2022-03-17 23:37:31,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:31,321 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5548 transitions. [2022-03-17 23:37:31,321 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5548 transitions. [2022-03-17 23:37:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 23:37:31,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:31,328 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:31,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:37:31,328 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:31,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1439825937, now seen corresponding path program 1 times [2022-03-17 23:37:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:31,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730134361] [2022-03-17 23:37:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:31,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-17 23:37:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:31,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730134361] [2022-03-17 23:37:31,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730134361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:31,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:31,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:31,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942701079] [2022-03-17 23:37:31,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:31,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:31,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:31,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:31,520 INFO L87 Difference]: Start difference. First operand 3822 states and 5548 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:33,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:33,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:33,989 INFO L93 Difference]: Finished difference Result 7763 states and 11235 transitions. [2022-03-17 23:37:33,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:33,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-17 23:37:33,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:33,998 INFO L225 Difference]: With dead ends: 7763 [2022-03-17 23:37:33,998 INFO L226 Difference]: Without dead ends: 3969 [2022-03-17 23:37:34,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:34,005 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:34,005 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 611 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:37:34,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2022-03-17 23:37:34,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3822. [2022-03-17 23:37:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3817 states have (on average 1.4506156667539953) internal successors, (5537), 3817 states have internal predecessors, (5537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 5541 transitions. [2022-03-17 23:37:34,081 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 5541 transitions. Word has length 267 [2022-03-17 23:37:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:34,082 INFO L478 AbstractCegarLoop]: Abstraction has 3822 states and 5541 transitions. [2022-03-17 23:37:34,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 5541 transitions. [2022-03-17 23:37:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-17 23:37:34,088 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:34,088 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:34,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:37:34,089 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:34,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:34,089 INFO L85 PathProgramCache]: Analyzing trace with hash 911460336, now seen corresponding path program 1 times [2022-03-17 23:37:34,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:34,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525095615] [2022-03-17 23:37:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:34,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 393 proven. 23 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-03-17 23:37:34,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:34,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525095615] [2022-03-17 23:37:34,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525095615] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:37:34,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400047081] [2022-03-17 23:37:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:34,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:37:34,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:37:34,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:37:34,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:37:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:35,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-17 23:37:35,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:37:35,244 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:37:35,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:37:35,307 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:37:35,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:37:35,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:37:35,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:37:35,528 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:37:35,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:37:35,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:37:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 388 proven. 87 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-17 23:37:35,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:37:36,060 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-17 23:37:36,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400047081] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:37:36,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:37:36,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 23:37:36,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215089485] [2022-03-17 23:37:36,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:36,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:36,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:36,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:37:36,062 INFO L87 Difference]: Start difference. First operand 3822 states and 5541 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:38,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:38,448 INFO L93 Difference]: Finished difference Result 8366 states and 12095 transitions. [2022-03-17 23:37:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 267 [2022-03-17 23:37:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:38,456 INFO L225 Difference]: With dead ends: 8366 [2022-03-17 23:37:38,456 INFO L226 Difference]: Without dead ends: 4572 [2022-03-17 23:37:38,462 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:37:38,462 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 117 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:38,463 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 392 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:37:38,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2022-03-17 23:37:38,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4032. [2022-03-17 23:37:38,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4380432083436803) internal successors, (5791), 4027 states have internal predecessors, (5791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5795 transitions. [2022-03-17 23:37:38,550 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5795 transitions. Word has length 267 [2022-03-17 23:37:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:38,550 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5795 transitions. [2022-03-17 23:37:38,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5795 transitions. [2022-03-17 23:37:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 23:37:38,557 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:38,557 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:38,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 23:37:38,771 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,SelfDestructingSolverStorable43 [2022-03-17 23:37:38,772 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:38,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2045348045, now seen corresponding path program 1 times [2022-03-17 23:37:38,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:38,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522575256] [2022-03-17 23:37:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:38,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:38,938 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-17 23:37:38,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:38,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522575256] [2022-03-17 23:37:38,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522575256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:38,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:38,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:38,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226998747] [2022-03-17 23:37:38,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:38,939 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:38,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:38,940 INFO L87 Difference]: Start difference. First operand 4032 states and 5795 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:40,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:41,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:41,457 INFO L93 Difference]: Finished difference Result 8169 states and 11715 transitions. [2022-03-17 23:37:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:41,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-17 23:37:41,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:41,463 INFO L225 Difference]: With dead ends: 8169 [2022-03-17 23:37:41,463 INFO L226 Difference]: Without dead ends: 4165 [2022-03-17 23:37:41,469 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:41,470 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 48 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:41,470 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 607 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:37:41,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-03-17 23:37:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4032. [2022-03-17 23:37:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4363049416439035) internal successors, (5784), 4027 states have internal predecessors, (5784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:41,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5788 transitions. [2022-03-17 23:37:41,554 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5788 transitions. Word has length 268 [2022-03-17 23:37:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:41,554 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5788 transitions. [2022-03-17 23:37:41,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5788 transitions. [2022-03-17 23:37:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-17 23:37:41,561 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:41,561 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:41,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:37:41,562 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1449083698, now seen corresponding path program 1 times [2022-03-17 23:37:41,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:41,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762304526] [2022-03-17 23:37:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:41,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:41,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 401 proven. 78 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-03-17 23:37:41,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:41,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762304526] [2022-03-17 23:37:41,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762304526] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:37:41,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731113822] [2022-03-17 23:37:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:41,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:37:41,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:37:41,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:37:41,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 23:37:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:42,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-17 23:37:42,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:37:42,679 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:37:42,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:37:42,722 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:37:42,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:37:42,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:37:42,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:37:42,946 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:37:42,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:37:43,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:37:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 393 proven. 85 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-03-17 23:37:43,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:37:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-03-17 23:37:43,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731113822] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:37:43,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:37:43,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 23:37:43,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800697491] [2022-03-17 23:37:43,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:43,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:43,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:43,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:37:43,516 INFO L87 Difference]: Start difference. First operand 4032 states and 5788 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:44,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:45,206 INFO L93 Difference]: Finished difference Result 8485 states and 12148 transitions. [2022-03-17 23:37:45,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:45,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 268 [2022-03-17 23:37:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:45,211 INFO L225 Difference]: With dead ends: 8485 [2022-03-17 23:37:45,211 INFO L226 Difference]: Without dead ends: 4481 [2022-03-17 23:37:45,214 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:37:45,215 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 116 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:45,215 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 372 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 23:37:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2022-03-17 23:37:45,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4032. [2022-03-17 23:37:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.4246337223739756) internal successors, (5737), 4027 states have internal predecessors, (5737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:45,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5741 transitions. [2022-03-17 23:37:45,276 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5741 transitions. Word has length 268 [2022-03-17 23:37:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:45,276 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5741 transitions. [2022-03-17 23:37:45,277 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5741 transitions. [2022-03-17 23:37:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 23:37:45,281 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:45,281 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:45,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 23:37:45,481 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,SelfDestructingSolverStorable45 [2022-03-17 23:37:45,482 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash -530631723, now seen corresponding path program 1 times [2022-03-17 23:37:45,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:45,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067761748] [2022-03-17 23:37:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:45,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-17 23:37:45,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:45,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067761748] [2022-03-17 23:37:45,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067761748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:45,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:45,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:45,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22010782] [2022-03-17 23:37:45,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:45,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:45,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:45,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:45,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:45,649 INFO L87 Difference]: Start difference. First operand 4032 states and 5741 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:48,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:49,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:51,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:51,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:51,751 INFO L93 Difference]: Finished difference Result 8169 states and 11607 transitions. [2022-03-17 23:37:51,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:51,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-03-17 23:37:51,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:51,756 INFO L225 Difference]: With dead ends: 8169 [2022-03-17 23:37:51,756 INFO L226 Difference]: Without dead ends: 4165 [2022-03-17 23:37:51,760 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:51,761 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 43 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:51,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 605 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:37:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-03-17 23:37:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4032. [2022-03-17 23:37:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4032 states, 4027 states have (on average 1.422895455674199) internal successors, (5730), 4027 states have internal predecessors, (5730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4032 states to 4032 states and 5734 transitions. [2022-03-17 23:37:51,840 INFO L78 Accepts]: Start accepts. Automaton has 4032 states and 5734 transitions. Word has length 277 [2022-03-17 23:37:51,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:51,840 INFO L478 AbstractCegarLoop]: Abstraction has 4032 states and 5734 transitions. [2022-03-17 23:37:51,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4032 states and 5734 transitions. [2022-03-17 23:37:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 23:37:51,847 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:51,847 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:51,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:37:51,847 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:51,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:51,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1305211124, now seen corresponding path program 1 times [2022-03-17 23:37:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:51,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574526007] [2022-03-17 23:37:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:51,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 432 proven. 90 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-17 23:37:52,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:52,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574526007] [2022-03-17 23:37:52,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574526007] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:37:52,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133503830] [2022-03-17 23:37:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:52,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:37:52,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:37:52,035 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:37:52,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 23:37:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:52,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1500 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-17 23:37:52,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:37:52,936 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:37:52,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:37:52,976 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:37:52,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:37:53,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:37:53,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:37:53,161 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:37:53,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:37:53,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:37:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 428 proven. 77 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-03-17 23:37:53,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:37:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-17 23:37:53,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133503830] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:37:53,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:37:53,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 23:37:53,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121067286] [2022-03-17 23:37:53,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:53,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:53,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:53,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:53,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:37:53,637 INFO L87 Difference]: Start difference. First operand 4032 states and 5734 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:55,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:55,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:55,375 INFO L93 Difference]: Finished difference Result 8786 states and 12467 transitions. [2022-03-17 23:37:55,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:55,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 277 [2022-03-17 23:37:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:55,380 INFO L225 Difference]: With dead ends: 8786 [2022-03-17 23:37:55,380 INFO L226 Difference]: Without dead ends: 4782 [2022-03-17 23:37:55,384 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:37:55,384 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 111 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:55,384 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 372 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-17 23:37:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4782 states. [2022-03-17 23:37:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4782 to 4277. [2022-03-17 23:37:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4152621722846441) internal successors, (6046), 4272 states have internal predecessors, (6046), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6050 transitions. [2022-03-17 23:37:55,496 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6050 transitions. Word has length 277 [2022-03-17 23:37:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:55,497 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6050 transitions. [2022-03-17 23:37:55,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6050 transitions. [2022-03-17 23:37:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-17 23:37:55,502 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:55,502 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:55,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-17 23:37:55,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:37:55,703 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:55,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:55,703 INFO L85 PathProgramCache]: Analyzing trace with hash -281690015, now seen corresponding path program 1 times [2022-03-17 23:37:55,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:55,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758428561] [2022-03-17 23:37:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:55,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:55,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:55,855 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-03-17 23:37:55,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:55,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758428561] [2022-03-17 23:37:55,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758428561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:55,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:55,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:55,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404518866] [2022-03-17 23:37:55,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:55,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:55,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:55,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:55,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:55,856 INFO L87 Difference]: Start difference. First operand 4277 states and 6050 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:57,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:59,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:01,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:01,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:01,604 INFO L93 Difference]: Finished difference Result 8624 states and 12190 transitions. [2022-03-17 23:38:01,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:01,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-03-17 23:38:01,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:01,608 INFO L225 Difference]: With dead ends: 8624 [2022-03-17 23:38:01,608 INFO L226 Difference]: Without dead ends: 4375 [2022-03-17 23:38:01,613 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:01,613 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 29 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:01,613 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 580 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 433 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:38:01,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4375 states. [2022-03-17 23:38:01,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4375 to 4277. [2022-03-17 23:38:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.413623595505618) internal successors, (6039), 4272 states have internal predecessors, (6039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6043 transitions. [2022-03-17 23:38:01,697 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6043 transitions. Word has length 278 [2022-03-17 23:38:01,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:01,697 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6043 transitions. [2022-03-17 23:38:01,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6043 transitions. [2022-03-17 23:38:01,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-17 23:38:01,702 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:01,702 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:01,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:38:01,703 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:01,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:01,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1635455745, now seen corresponding path program 1 times [2022-03-17 23:38:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:01,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061315395] [2022-03-17 23:38:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:01,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-17 23:38:01,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:01,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061315395] [2022-03-17 23:38:01,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061315395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:01,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:01,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:01,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566265152] [2022-03-17 23:38:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:01,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:01,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:01,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:01,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:01,857 INFO L87 Difference]: Start difference. First operand 4277 states and 6043 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:03,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:05,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:07,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:09,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:09,713 INFO L93 Difference]: Finished difference Result 8645 states and 12197 transitions. [2022-03-17 23:38:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-03-17 23:38:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:09,716 INFO L225 Difference]: With dead ends: 8645 [2022-03-17 23:38:09,717 INFO L226 Difference]: Without dead ends: 4396 [2022-03-17 23:38:09,720 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:09,721 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 40 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:09,721 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 601 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 23:38:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2022-03-17 23:38:09,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4277. [2022-03-17 23:38:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4119850187265917) internal successors, (6032), 4272 states have internal predecessors, (6032), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:09,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6036 transitions. [2022-03-17 23:38:09,790 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6036 transitions. Word has length 278 [2022-03-17 23:38:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:09,790 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6036 transitions. [2022-03-17 23:38:09,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:09,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6036 transitions. [2022-03-17 23:38:09,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-03-17 23:38:09,795 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:09,796 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:09,796 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 23:38:09,796 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:09,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash -558902336, now seen corresponding path program 1 times [2022-03-17 23:38:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:09,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730030456] [2022-03-17 23:38:09,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:09,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:09,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 436 proven. 93 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-03-17 23:38:09,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:09,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730030456] [2022-03-17 23:38:09,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730030456] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:38:09,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300549333] [2022-03-17 23:38:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:09,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:38:09,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:38:09,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:38:09,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 23:38:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:10,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-17 23:38:10,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:38:10,928 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:38:10,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:38:10,968 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:38:10,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:38:11,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:38:11,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:38:11,185 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:38:11,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:38:11,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:38:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 433 proven. 75 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-03-17 23:38:11,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:38:11,682 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-17 23:38:11,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300549333] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:38:11,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:38:11,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-17 23:38:11,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388707658] [2022-03-17 23:38:11,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:11,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:38:11,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:11,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:38:11,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:38:11,684 INFO L87 Difference]: Start difference. First operand 4277 states and 6036 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:13,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:14,049 INFO L93 Difference]: Finished difference Result 8975 states and 12644 transitions. [2022-03-17 23:38:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:38:14,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 278 [2022-03-17 23:38:14,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:14,055 INFO L225 Difference]: With dead ends: 8975 [2022-03-17 23:38:14,055 INFO L226 Difference]: Without dead ends: 4726 [2022-03-17 23:38:14,057 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:38:14,058 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:14,058 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:38:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2022-03-17 23:38:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 4277. [2022-03-17 23:38:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 4272 states have (on average 1.4040262172284643) internal successors, (5998), 4272 states have internal predecessors, (5998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6002 transitions. [2022-03-17 23:38:14,127 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6002 transitions. Word has length 278 [2022-03-17 23:38:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:14,127 INFO L478 AbstractCegarLoop]: Abstraction has 4277 states and 6002 transitions. [2022-03-17 23:38:14,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6002 transitions. [2022-03-17 23:38:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-17 23:38:14,132 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:14,132 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:14,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 23:38:14,332 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:38:14,332 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:14,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:14,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1512191379, now seen corresponding path program 1 times [2022-03-17 23:38:14,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:14,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198771777] [2022-03-17 23:38:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:14,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-03-17 23:38:14,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:14,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198771777] [2022-03-17 23:38:14,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198771777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:14,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:14,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:14,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377084879] [2022-03-17 23:38:14,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:14,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:14,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:14,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:14,483 INFO L87 Difference]: Start difference. First operand 4277 states and 6002 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:17,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:19,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:19,912 INFO L93 Difference]: Finished difference Result 8695 states and 12198 transitions. [2022-03-17 23:38:19,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:19,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-03-17 23:38:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:19,917 INFO L225 Difference]: With dead ends: 8695 [2022-03-17 23:38:19,917 INFO L226 Difference]: Without dead ends: 4446 [2022-03-17 23:38:19,922 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:19,922 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 14 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:19,922 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 565 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:38:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2022-03-17 23:38:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 4424. [2022-03-17 23:38:19,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.401674587010636) internal successors, (6194), 4419 states have internal predecessors, (6194), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:19,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6198 transitions. [2022-03-17 23:38:19,987 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6198 transitions. Word has length 286 [2022-03-17 23:38:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:19,988 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6198 transitions. [2022-03-17 23:38:19,988 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6198 transitions. [2022-03-17 23:38:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-17 23:38:19,993 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:19,993 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:19,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 23:38:19,993 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:19,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:19,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1869106304, now seen corresponding path program 1 times [2022-03-17 23:38:19,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:19,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75262172] [2022-03-17 23:38:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:19,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:20,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-17 23:38:20,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:20,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75262172] [2022-03-17 23:38:20,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75262172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:20,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:20,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:20,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325672429] [2022-03-17 23:38:20,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:20,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:20,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:20,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:20,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:20,227 INFO L87 Difference]: Start difference. First operand 4424 states and 6198 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:22,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:24,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:26,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:26,523 INFO L93 Difference]: Finished difference Result 8905 states and 12465 transitions. [2022-03-17 23:38:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:26,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-03-17 23:38:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:26,528 INFO L225 Difference]: With dead ends: 8905 [2022-03-17 23:38:26,528 INFO L226 Difference]: Without dead ends: 4509 [2022-03-17 23:38:26,532 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:26,532 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 44 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:26,533 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 589 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:38:26,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-03-17 23:38:26,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4424. [2022-03-17 23:38:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.400090518216791) internal successors, (6187), 4419 states have internal predecessors, (6187), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6191 transitions. [2022-03-17 23:38:26,629 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6191 transitions. Word has length 286 [2022-03-17 23:38:26,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:26,629 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6191 transitions. [2022-03-17 23:38:26,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6191 transitions. [2022-03-17 23:38:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-03-17 23:38:26,633 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:26,633 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:26,633 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 23:38:26,633 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1217942817, now seen corresponding path program 1 times [2022-03-17 23:38:26,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:26,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321265578] [2022-03-17 23:38:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:26,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-03-17 23:38:26,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:26,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321265578] [2022-03-17 23:38:26,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321265578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:26,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:26,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213560471] [2022-03-17 23:38:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:26,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:26,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:26,811 INFO L87 Difference]: Start difference. First operand 4424 states and 6191 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:28,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:29,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:31,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:32,475 INFO L93 Difference]: Finished difference Result 9269 states and 12954 transitions. [2022-03-17 23:38:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:32,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-03-17 23:38:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:32,480 INFO L225 Difference]: With dead ends: 9269 [2022-03-17 23:38:32,480 INFO L226 Difference]: Without dead ends: 4873 [2022-03-17 23:38:32,483 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:32,483 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 120 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:32,484 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:38:32,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2022-03-17 23:38:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4424. [2022-03-17 23:38:32,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.3831183525684545) internal successors, (6112), 4419 states have internal predecessors, (6112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6116 transitions. [2022-03-17 23:38:32,578 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6116 transitions. Word has length 286 [2022-03-17 23:38:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:32,578 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6116 transitions. [2022-03-17 23:38:32,578 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6116 transitions. [2022-03-17 23:38:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-03-17 23:38:32,582 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:32,582 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-03-17 23:38:32,582 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 23:38:32,582 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:32,582 INFO L85 PathProgramCache]: Analyzing trace with hash 417605834, now seen corresponding path program 1 times [2022-03-17 23:38:32,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:32,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334337594] [2022-03-17 23:38:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:32,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:32,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-03-17 23:38:32,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:32,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334337594] [2022-03-17 23:38:32,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334337594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:32,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:32,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:32,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509693194] [2022-03-17 23:38:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:32,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:32,765 INFO L87 Difference]: Start difference. First operand 4424 states and 6116 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:34,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:35,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:37,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:39,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:39,730 INFO L93 Difference]: Finished difference Result 8926 states and 12329 transitions. [2022-03-17 23:38:39,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:39,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2022-03-17 23:38:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:39,735 INFO L225 Difference]: With dead ends: 8926 [2022-03-17 23:38:39,735 INFO L226 Difference]: Without dead ends: 4530 [2022-03-17 23:38:39,739 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:39,739 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 29 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:39,739 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 584 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:38:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2022-03-17 23:38:39,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 4424. [2022-03-17 23:38:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4419 states have (on average 1.3815342837746096) internal successors, (6105), 4419 states have internal predecessors, (6105), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:39,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 6109 transitions. [2022-03-17 23:38:39,833 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 6109 transitions. Word has length 287 [2022-03-17 23:38:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:39,833 INFO L478 AbstractCegarLoop]: Abstraction has 4424 states and 6109 transitions. [2022-03-17 23:38:39,833 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 6109 transitions. [2022-03-17 23:38:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-17 23:38:39,837 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:39,837 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:39,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 23:38:39,837 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:39,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:39,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1220275380, now seen corresponding path program 1 times [2022-03-17 23:38:39,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:39,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307952744] [2022-03-17 23:38:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:39,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-03-17 23:38:40,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307952744] [2022-03-17 23:38:40,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307952744] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:38:40,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701547633] [2022-03-17 23:38:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:40,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:38:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:38:40,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:38:40,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 23:38:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:41,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-17 23:38:41,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:38:41,100 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:38:41,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:38:41,141 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:38:41,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:38:41,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:38:41,314 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:38:41,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:38:41,384 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 19 treesize of output 7 [2022-03-17 23:38:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-03-17 23:38:41,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:38:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-17 23:38:41,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701547633] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:38:41,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:38:41,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-17 23:38:41,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646182695] [2022-03-17 23:38:41,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:41,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:38:41,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:41,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:38:41,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 23:38:41,859 INFO L87 Difference]: Start difference. First operand 4424 states and 6109 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:43,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:44,233 INFO L93 Difference]: Finished difference Result 9269 states and 12790 transitions. [2022-03-17 23:38:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:38:44,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 295 [2022-03-17 23:38:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:44,238 INFO L225 Difference]: With dead ends: 9269 [2022-03-17 23:38:44,238 INFO L226 Difference]: Without dead ends: 4873 [2022-03-17 23:38:44,242 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:38:44,243 INFO L912 BasicCegarLoop]: 163 mSDtfsCounter, 103 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:44,243 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 431 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:38:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2022-03-17 23:38:44,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4430. [2022-03-17 23:38:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4430 states, 4425 states have (on average 1.3778531073446327) internal successors, (6097), 4425 states have internal predecessors, (6097), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4430 states to 4430 states and 6101 transitions. [2022-03-17 23:38:44,331 INFO L78 Accepts]: Start accepts. Automaton has 4430 states and 6101 transitions. Word has length 295 [2022-03-17 23:38:44,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:44,331 INFO L478 AbstractCegarLoop]: Abstraction has 4430 states and 6101 transitions. [2022-03-17 23:38:44,331 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:44,331 INFO L276 IsEmpty]: Start isEmpty. Operand 4430 states and 6101 transitions. [2022-03-17 23:38:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-03-17 23:38:44,335 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:44,335 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:44,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-17 23:38:44,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-03-17 23:38:44,537 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash -746756437, now seen corresponding path program 1 times [2022-03-17 23:38:44,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:44,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148571081] [2022-03-17 23:38:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:44,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:44,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-17 23:38:44,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:44,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148571081] [2022-03-17 23:38:44,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148571081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:44,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:44,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-17 23:38:44,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256181106] [2022-03-17 23:38:44,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:44,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-17 23:38:44,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-17 23:38:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:38:44,862 INFO L87 Difference]: Start difference. First operand 4430 states and 6101 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:46,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:48,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:50,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:52,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:54,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:55,749 INFO L93 Difference]: Finished difference Result 12719 states and 17556 transitions. [2022-03-17 23:38:55,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-17 23:38:55,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 295 [2022-03-17 23:38:55,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:55,757 INFO L225 Difference]: With dead ends: 12719 [2022-03-17 23:38:55,757 INFO L226 Difference]: Without dead ends: 8317 [2022-03-17 23:38:55,760 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:38:55,761 INFO L912 BasicCegarLoop]: 320 mSDtfsCounter, 413 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 102 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:55,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1118 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1205 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-03-17 23:38:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-03-17 23:38:55,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 8041. [2022-03-17 23:38:55,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8041 states, 8036 states have (on average 1.3885017421602788) internal successors, (11158), 8036 states have internal predecessors, (11158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:55,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 11162 transitions. [2022-03-17 23:38:55,970 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 11162 transitions. Word has length 295 [2022-03-17 23:38:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:55,970 INFO L478 AbstractCegarLoop]: Abstraction has 8041 states and 11162 transitions. [2022-03-17 23:38:55,970 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 11162 transitions. [2022-03-17 23:38:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-17 23:38:55,978 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:55,978 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:55,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 23:38:55,978 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1814109237, now seen corresponding path program 1 times [2022-03-17 23:38:55,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:55,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359730545] [2022-03-17 23:38:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:55,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:56,157 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-03-17 23:38:56,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:56,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359730545] [2022-03-17 23:38:56,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359730545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:56,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:56,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:56,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083900983] [2022-03-17 23:38:56,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:56,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:56,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:56,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:56,159 INFO L87 Difference]: Start difference. First operand 8041 states and 11162 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:58,674 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 [] [2022-03-17 23:39:00,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:01,376 INFO L93 Difference]: Finished difference Result 16210 states and 22480 transitions. [2022-03-17 23:39:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:01,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-03-17 23:39:01,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:01,413 INFO L225 Difference]: With dead ends: 16210 [2022-03-17 23:39:01,413 INFO L226 Difference]: Without dead ends: 8141 [2022-03-17 23:39:01,419 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:01,419 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 26 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:01,420 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 585 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:39:01,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-17 23:39:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7985. [2022-03-17 23:39:01,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3894736842105264) internal successors, (11088), 7980 states have internal predecessors, (11088), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11092 transitions. [2022-03-17 23:39:01,603 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11092 transitions. Word has length 296 [2022-03-17 23:39:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:01,603 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11092 transitions. [2022-03-17 23:39:01,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11092 transitions. [2022-03-17 23:39:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-17 23:39:01,628 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:01,628 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:01,628 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 23:39:01,628 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:01,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1877890307, now seen corresponding path program 1 times [2022-03-17 23:39:01,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:01,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926527351] [2022-03-17 23:39:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:01,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:01,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-17 23:39:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:01,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926527351] [2022-03-17 23:39:01,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926527351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:01,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:01,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:01,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782798990] [2022-03-17 23:39:01,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:01,941 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:01,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:01,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:01,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:01,941 INFO L87 Difference]: Start difference. First operand 7985 states and 11092 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:03,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:04,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:05,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:07,225 INFO L93 Difference]: Finished difference Result 16098 states and 22340 transitions. [2022-03-17 23:39:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:07,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-03-17 23:39:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:07,251 INFO L225 Difference]: With dead ends: 16098 [2022-03-17 23:39:07,251 INFO L226 Difference]: Without dead ends: 8141 [2022-03-17 23:39:07,257 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:07,257 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 25 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:07,257 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 583 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:39:07,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-17 23:39:07,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7985. [2022-03-17 23:39:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3877192982456141) internal successors, (11074), 7980 states have internal predecessors, (11074), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11078 transitions. [2022-03-17 23:39:07,397 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11078 transitions. Word has length 296 [2022-03-17 23:39:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:07,413 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11078 transitions. [2022-03-17 23:39:07,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11078 transitions. [2022-03-17 23:39:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-03-17 23:39:07,422 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:07,422 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:07,422 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 23:39:07,423 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:07,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:07,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1068402850, now seen corresponding path program 1 times [2022-03-17 23:39:07,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:07,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211611502] [2022-03-17 23:39:07,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:07,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:07,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-17 23:39:07,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:07,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211611502] [2022-03-17 23:39:07,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211611502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:07,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:07,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:07,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844067846] [2022-03-17 23:39:07,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:07,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:07,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:07,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:07,602 INFO L87 Difference]: Start difference. First operand 7985 states and 11078 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:10,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:12,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:12,811 INFO L93 Difference]: Finished difference Result 16105 states and 22319 transitions. [2022-03-17 23:39:12,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-03-17 23:39:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:12,821 INFO L225 Difference]: With dead ends: 16105 [2022-03-17 23:39:12,821 INFO L226 Difference]: Without dead ends: 8148 [2022-03-17 23:39:12,828 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:12,829 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 33 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:12,829 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 529 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:39:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-03-17 23:39:12,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 7985. [2022-03-17 23:39:12,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3859649122807018) internal successors, (11060), 7980 states have internal predecessors, (11060), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11064 transitions. [2022-03-17 23:39:13,001 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11064 transitions. Word has length 296 [2022-03-17 23:39:13,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:13,002 INFO L478 AbstractCegarLoop]: Abstraction has 7985 states and 11064 transitions. [2022-03-17 23:39:13,002 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11064 transitions. [2022-03-17 23:39:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-17 23:39:13,009 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:13,009 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:13,009 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 23:39:13,009 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:13,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash -481303524, now seen corresponding path program 1 times [2022-03-17 23:39:13,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:13,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000701328] [2022-03-17 23:39:13,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:13,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-17 23:39:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000701328] [2022-03-17 23:39:13,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000701328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:13,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:13,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:13,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688096869] [2022-03-17 23:39:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:13,217 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:13,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:13,218 INFO L87 Difference]: Start difference. First operand 7985 states and 11064 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:16,035 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 [] [2022-03-17 23:39:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:16,614 INFO L93 Difference]: Finished difference Result 16042 states and 22214 transitions. [2022-03-17 23:39:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-03-17 23:39:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:16,622 INFO L225 Difference]: With dead ends: 16042 [2022-03-17 23:39:16,622 INFO L226 Difference]: Without dead ends: 7931 [2022-03-17 23:39:16,626 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:16,626 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:16,626 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 575 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 23:39:16,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2022-03-17 23:39:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7831. [2022-03-17 23:39:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7831 states, 7826 states have (on average 1.3917710196779964) internal successors, (10892), 7826 states have internal predecessors, (10892), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:16,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7831 states to 7831 states and 10896 transitions. [2022-03-17 23:39:16,766 INFO L78 Accepts]: Start accepts. Automaton has 7831 states and 10896 transitions. Word has length 297 [2022-03-17 23:39:16,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:16,767 INFO L478 AbstractCegarLoop]: Abstraction has 7831 states and 10896 transitions. [2022-03-17 23:39:16,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7831 states and 10896 transitions. [2022-03-17 23:39:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-03-17 23:39:16,776 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:16,776 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:16,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 23:39:16,776 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:16,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash 194389085, now seen corresponding path program 1 times [2022-03-17 23:39:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:16,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293333075] [2022-03-17 23:39:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:16,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-03-17 23:39:16,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:16,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293333075] [2022-03-17 23:39:16,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293333075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:16,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:16,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:16,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911926787] [2022-03-17 23:39:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:16,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:16,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:16,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:16,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:16,957 INFO L87 Difference]: Start difference. First operand 7831 states and 10896 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:20,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:21,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:22,385 INFO L93 Difference]: Finished difference Result 16471 states and 22878 transitions. [2022-03-17 23:39:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:22,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-03-17 23:39:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:22,394 INFO L225 Difference]: With dead ends: 16471 [2022-03-17 23:39:22,394 INFO L226 Difference]: Without dead ends: 8668 [2022-03-17 23:39:22,399 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:22,400 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 110 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:22,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 376 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:39:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2022-03-17 23:39:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 7754. [2022-03-17 23:39:22,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.385856239514776) internal successors, (10739), 7749 states have internal predecessors, (10739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:22,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 10743 transitions. [2022-03-17 23:39:22,562 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 10743 transitions. Word has length 297 [2022-03-17 23:39:22,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:22,563 INFO L478 AbstractCegarLoop]: Abstraction has 7754 states and 10743 transitions. [2022-03-17 23:39:22,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 10743 transitions. [2022-03-17 23:39:22,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-03-17 23:39:22,570 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:22,570 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 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] [2022-03-17 23:39:22,570 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 23:39:22,570 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:22,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1713213843, now seen corresponding path program 1 times [2022-03-17 23:39:22,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:22,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998523718] [2022-03-17 23:39:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:22,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-03-17 23:39:22,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:22,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998523718] [2022-03-17 23:39:22,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998523718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:22,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:22,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657201689] [2022-03-17 23:39:22,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:22,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:22,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:22,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:22,756 INFO L87 Difference]: Start difference. First operand 7754 states and 10743 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:24,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:25,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:27,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:28,305 INFO L93 Difference]: Finished difference Result 15590 states and 21592 transitions. [2022-03-17 23:39:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 305 [2022-03-17 23:39:28,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:28,313 INFO L225 Difference]: With dead ends: 15590 [2022-03-17 23:39:28,313 INFO L226 Difference]: Without dead ends: 7864 [2022-03-17 23:39:28,319 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:28,319 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 47 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:28,320 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 566 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:39:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7864 states. [2022-03-17 23:39:28,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7864 to 7754. [2022-03-17 23:39:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.3850819460575559) internal successors, (10733), 7749 states have internal predecessors, (10733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:28,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 10737 transitions. [2022-03-17 23:39:28,499 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 10737 transitions. Word has length 305 [2022-03-17 23:39:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:28,500 INFO L478 AbstractCegarLoop]: Abstraction has 7754 states and 10737 transitions. [2022-03-17 23:39:28,500 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 10737 transitions. [2022-03-17 23:39:28,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-03-17 23:39:28,508 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:28,508 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 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] [2022-03-17 23:39:28,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 23:39:28,508 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:28,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash -738379758, now seen corresponding path program 1 times [2022-03-17 23:39:28,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:28,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871578647] [2022-03-17 23:39:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:28,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-17 23:39:28,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:28,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871578647] [2022-03-17 23:39:28,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871578647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:28,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:28,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:39:28,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493218067] [2022-03-17 23:39:28,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:28,687 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:39:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:39:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:28,688 INFO L87 Difference]: Start difference. First operand 7754 states and 10737 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:29,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:31,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:33,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:35,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:36,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:36,167 INFO L93 Difference]: Finished difference Result 16560 states and 22878 transitions. [2022-03-17 23:39:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:39:36,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 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 307 [2022-03-17 23:39:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:36,176 INFO L225 Difference]: With dead ends: 16560 [2022-03-17 23:39:36,177 INFO L226 Difference]: Without dead ends: 8834 [2022-03-17 23:39:36,183 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:39:36,184 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 37 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:36,184 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 708 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:39:36,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8834 states. [2022-03-17 23:39:36,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8834 to 8231. [2022-03-17 23:39:36,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8231 states, 8226 states have (on average 1.3836615609044494) internal successors, (11382), 8226 states have internal predecessors, (11382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8231 states to 8231 states and 11386 transitions. [2022-03-17 23:39:36,380 INFO L78 Accepts]: Start accepts. Automaton has 8231 states and 11386 transitions. Word has length 307 [2022-03-17 23:39:36,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:36,380 INFO L478 AbstractCegarLoop]: Abstraction has 8231 states and 11386 transitions. [2022-03-17 23:39:36,380 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand 8231 states and 11386 transitions. [2022-03-17 23:39:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-03-17 23:39:36,387 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:36,387 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 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] [2022-03-17 23:39:36,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-17 23:39:36,387 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:36,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash -679159021, now seen corresponding path program 1 times [2022-03-17 23:39:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:36,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266757591] [2022-03-17 23:39:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:36,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-17 23:39:36,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:36,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266757591] [2022-03-17 23:39:36,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266757591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:36,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:36,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:36,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640711217] [2022-03-17 23:39:36,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:36,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:36,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:36,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:36,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:36,540 INFO L87 Difference]: Start difference. First operand 8231 states and 11386 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:37,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:39,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:41,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:42,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:42,963 INFO L93 Difference]: Finished difference Result 16584 states and 22910 transitions. [2022-03-17 23:39:42,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:42,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 307 [2022-03-17 23:39:42,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:42,970 INFO L225 Difference]: With dead ends: 16584 [2022-03-17 23:39:42,970 INFO L226 Difference]: Without dead ends: 8381 [2022-03-17 23:39:42,975 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:42,975 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 39 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:42,975 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 532 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:39:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8381 states. [2022-03-17 23:39:43,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8381 to 8231. [2022-03-17 23:39:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8231 states, 8226 states have (on average 1.3812302455628496) internal successors, (11362), 8226 states have internal predecessors, (11362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:43,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8231 states to 8231 states and 11366 transitions. [2022-03-17 23:39:43,168 INFO L78 Accepts]: Start accepts. Automaton has 8231 states and 11366 transitions. Word has length 307 [2022-03-17 23:39:43,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:43,169 INFO L478 AbstractCegarLoop]: Abstraction has 8231 states and 11366 transitions. [2022-03-17 23:39:43,169 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:43,169 INFO L276 IsEmpty]: Start isEmpty. Operand 8231 states and 11366 transitions. [2022-03-17 23:39:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-03-17 23:39:43,175 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:43,175 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 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] [2022-03-17 23:39:43,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-17 23:39:43,175 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:43,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:43,175 INFO L85 PathProgramCache]: Analyzing trace with hash 459743299, now seen corresponding path program 1 times [2022-03-17 23:39:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:43,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803847062] [2022-03-17 23:39:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:43,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-03-17 23:39:43,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:43,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803847062] [2022-03-17 23:39:43,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803847062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:43,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:43,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699717016] [2022-03-17 23:39:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:43,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:43,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:43,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:43,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:43,348 INFO L87 Difference]: Start difference. First operand 8231 states and 11366 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:45,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:47,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:49,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:49,621 INFO L93 Difference]: Finished difference Result 16504 states and 22773 transitions. [2022-03-17 23:39:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:49,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 308 [2022-03-17 23:39:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:49,629 INFO L225 Difference]: With dead ends: 16504 [2022-03-17 23:39:49,629 INFO L226 Difference]: Without dead ends: 8301 [2022-03-17 23:39:49,635 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:49,636 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 33 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:49,636 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 527 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 429 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:39:49,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8301 states. [2022-03-17 23:39:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8301 to 8205. [2022-03-17 23:39:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8205 states, 8200 states have (on average 1.38) internal successors, (11316), 8200 states have internal predecessors, (11316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8205 states to 8205 states and 11320 transitions. [2022-03-17 23:39:49,814 INFO L78 Accepts]: Start accepts. Automaton has 8205 states and 11320 transitions. Word has length 308 [2022-03-17 23:39:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:49,814 INFO L478 AbstractCegarLoop]: Abstraction has 8205 states and 11320 transitions. [2022-03-17 23:39:49,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 8205 states and 11320 transitions. [2022-03-17 23:39:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-03-17 23:39:49,822 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:49,822 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:49,823 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 23:39:49,823 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:49,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:49,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1073414634, now seen corresponding path program 1 times [2022-03-17 23:39:49,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:49,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865254521] [2022-03-17 23:39:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:49,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-17 23:39:49,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865254521] [2022-03-17 23:39:49,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865254521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:49,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:49,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561937198] [2022-03-17 23:39:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:49,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:49,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:49,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:49,982 INFO L87 Difference]: Start difference. First operand 8205 states and 11320 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:52,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:54,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:56,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:57,470 INFO L93 Difference]: Finished difference Result 16525 states and 22771 transitions. [2022-03-17 23:39:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:57,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 317 [2022-03-17 23:39:57,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:57,478 INFO L225 Difference]: With dead ends: 16525 [2022-03-17 23:39:57,478 INFO L226 Difference]: Without dead ends: 8348 [2022-03-17 23:39:57,484 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:57,484 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 20 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:57,484 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 573 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:39:57,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8348 states. [2022-03-17 23:39:57,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8348 to 8205. [2022-03-17 23:39:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8205 states, 8200 states have (on average 1.377560975609756) internal successors, (11296), 8200 states have internal predecessors, (11296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8205 states to 8205 states and 11300 transitions. [2022-03-17 23:39:57,662 INFO L78 Accepts]: Start accepts. Automaton has 8205 states and 11300 transitions. Word has length 317 [2022-03-17 23:39:57,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:57,663 INFO L478 AbstractCegarLoop]: Abstraction has 8205 states and 11300 transitions. [2022-03-17 23:39:57,663 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8205 states and 11300 transitions. [2022-03-17 23:39:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-03-17 23:39:57,670 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:57,671 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:57,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-17 23:39:57,671 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:57,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:57,671 INFO L85 PathProgramCache]: Analyzing trace with hash -531049626, now seen corresponding path program 1 times [2022-03-17 23:39:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:57,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976578579] [2022-03-17 23:39:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:57,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-03-17 23:39:57,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:57,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976578579] [2022-03-17 23:39:57,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976578579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:57,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:57,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:57,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338948203] [2022-03-17 23:39:57,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:57,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:57,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:57,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:57,804 INFO L87 Difference]: Start difference. First operand 8205 states and 11300 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:00,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:02,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:03,302 INFO L93 Difference]: Finished difference Result 16445 states and 22634 transitions. [2022-03-17 23:40:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:03,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 318 [2022-03-17 23:40:03,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:03,310 INFO L225 Difference]: With dead ends: 16445 [2022-03-17 23:40:03,310 INFO L226 Difference]: Without dead ends: 8228 [2022-03-17 23:40:03,316 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:03,316 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 15 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:03,316 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 565 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:40:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8228 states. [2022-03-17 23:40:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8228 to 7871. [2022-03-17 23:40:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7871 states, 7866 states have (on average 1.3785914060513602) internal successors, (10844), 7866 states have internal predecessors, (10844), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7871 states to 7871 states and 10848 transitions. [2022-03-17 23:40:03,498 INFO L78 Accepts]: Start accepts. Automaton has 7871 states and 10848 transitions. Word has length 318 [2022-03-17 23:40:03,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:03,498 INFO L478 AbstractCegarLoop]: Abstraction has 7871 states and 10848 transitions. [2022-03-17 23:40:03,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7871 states and 10848 transitions. [2022-03-17 23:40:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-17 23:40:03,504 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:03,504 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:03,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-17 23:40:03,505 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash -176490362, now seen corresponding path program 1 times [2022-03-17 23:40:03,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:03,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621291868] [2022-03-17 23:40:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:03,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:04,348 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 487 proven. 289 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-03-17 23:40:04,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:04,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621291868] [2022-03-17 23:40:04,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621291868] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:40:04,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689547622] [2022-03-17 23:40:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:04,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:40:04,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:40:04,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:40:04,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-17 23:40:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:05,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-17 23:40:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:40:05,746 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:40:05,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:40:05,814 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:40:05,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:40:05,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 23:40:05,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 23:40:05,919 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 [2022-03-17 23:40:05,935 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 23:40:05,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-17 23:40:06,016 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 23:40:06,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-17 23:40:06,114 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:40:06,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-17 23:40:08,277 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:40:08,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:40:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 648 proven. 68 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-03-17 23:40:08,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:40:08,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 23:40:08,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 23:40:12,504 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 74 treesize of output 72 [2022-03-17 23:40:12,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-03-17 23:40:12,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-03-17 23:40:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 671 proven. 27 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-03-17 23:40:12,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689547622] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:40:12,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:40:12,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 7] total 24 [2022-03-17 23:40:12,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465398792] [2022-03-17 23:40:12,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:40:12,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-17 23:40:12,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:12,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-17 23:40:12,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=463, Unknown=2, NotChecked=0, Total=552 [2022-03-17 23:40:12,645 INFO L87 Difference]: Start difference. First operand 7871 states and 10848 transitions. Second operand has 24 states, 24 states have (on average 16.291666666666668) internal successors, (391), 23 states have internal predecessors, (391), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:13,744 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 [] [2022-03-17 23:40:15,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:17,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:19,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:21,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:23,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:25,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:27,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:29,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:31,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:33,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:04,670 INFO L93 Difference]: Finished difference Result 65400 states and 90139 transitions. [2022-03-17 23:41:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-17 23:41:04,670 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 16.291666666666668) internal successors, (391), 23 states have internal predecessors, (391), 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 324 [2022-03-17 23:41:04,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:04,796 INFO L225 Difference]: With dead ends: 65400 [2022-03-17 23:41:04,797 INFO L226 Difference]: Without dead ends: 57557 [2022-03-17 23:41:04,809 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2702 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=1452, Invalid=7659, Unknown=9, NotChecked=0, Total=9120 [2022-03-17 23:41:04,810 INFO L912 BasicCegarLoop]: 840 mSDtfsCounter, 2762 mSDsluCounter, 9503 mSDsCounter, 0 mSdLazyCounter, 9944 mSolverCounterSat, 669 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 10343 SdHoareTripleChecker+Invalid, 11640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 9944 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 1022 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:04,810 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2762 Valid, 10343 Invalid, 11640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 9944 Invalid, 5 Unknown, 1022 Unchecked, 30.3s Time] [2022-03-17 23:41:04,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57557 states. [2022-03-17 23:41:05,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57557 to 37981. [2022-03-17 23:41:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37981 states, 37976 states have (on average 1.394907309879924) internal successors, (52973), 37976 states have internal predecessors, (52973), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37981 states to 37981 states and 52977 transitions. [2022-03-17 23:41:06,031 INFO L78 Accepts]: Start accepts. Automaton has 37981 states and 52977 transitions. Word has length 324 [2022-03-17 23:41:06,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:06,031 INFO L478 AbstractCegarLoop]: Abstraction has 37981 states and 52977 transitions. [2022-03-17 23:41:06,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.291666666666668) internal successors, (391), 23 states have internal predecessors, (391), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand 37981 states and 52977 transitions. [2022-03-17 23:41:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-17 23:41:06,061 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:06,061 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:06,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-17 23:41:06,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:06,262 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:06,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:06,262 INFO L85 PathProgramCache]: Analyzing trace with hash 67046501, now seen corresponding path program 1 times [2022-03-17 23:41:06,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:06,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813630470] [2022-03-17 23:41:06,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:06,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-17 23:41:07,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:07,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813630470] [2022-03-17 23:41:07,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813630470] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:41:07,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575511616] [2022-03-17 23:41:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:07,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:07,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:41:07,607 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:41:07,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-17 23:41:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-17 23:41:08,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:41:09,014 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:41:09,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:41:09,129 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:41:09,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 23:41:09,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-17 23:41:09,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:09,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:41:09,350 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:41:09,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:41:09,360 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:41:09,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-17 23:41:10,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:41:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,046 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:41:10,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:41:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:41:10,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:41:10,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,129 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:41:10,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:41:10,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:41:10,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,849 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:41:10,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:41:10,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:10,885 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:41:10,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 23:41:10,929 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 23:41:10,929 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 [2022-03-17 23:41:13,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,877 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 302 treesize of output 248 [2022-03-17 23:41:13,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:13,892 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 302 treesize of output 242 [2022-03-17 23:41:13,940 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-17 23:41:13,941 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 302 treesize of output 321 [2022-03-17 23:41:17,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,131 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 297 treesize of output 233 [2022-03-17 23:41:17,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,138 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 297 treesize of output 239 [2022-03-17 23:41:17,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,162 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:41:17,163 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 297 treesize of output 291 [2022-03-17 23:41:17,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,444 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 240 treesize of output 168 [2022-03-17 23:41:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:17,447 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 168 treesize of output 96 [2022-03-17 23:41:17,466 INFO L356 Elim1Store]: treesize reduction 112, result has 14.5 percent of original size [2022-03-17 23:41:17,466 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 115 treesize of output 105 [2022-03-17 23:41:17,524 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:41:17,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 23:41:17,651 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:41:17,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:41:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 23:41:17,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:41:21,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:21,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:21,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-17 23:41:21,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:21,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:21,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-17 23:41:23,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:23,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:23,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:41:23,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:23,514 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-03-17 23:41:23,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 1 [2022-03-17 23:41:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 23:41:23,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575511616] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:41:23,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:41:23,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 14] total 46 [2022-03-17 23:41:23,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669484356] [2022-03-17 23:41:23,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:41:23,660 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-17 23:41:23,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:23,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-17 23:41:23,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=1741, Unknown=0, NotChecked=0, Total=2070 [2022-03-17 23:41:23,661 INFO L87 Difference]: Start difference. First operand 37981 states and 52977 transitions. Second operand has 46 states, 46 states have (on average 11.673913043478262) internal successors, (537), 45 states have internal predecessors, (537), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:25,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:26,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:29,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:31,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:33,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:49,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:49,099 INFO L93 Difference]: Finished difference Result 110307 states and 153578 transitions. [2022-03-17 23:41:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-03-17 23:41:49,100 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 11.673913043478262) internal successors, (537), 45 states have internal predecessors, (537), 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 324 [2022-03-17 23:41:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:49,191 INFO L225 Difference]: With dead ends: 110307 [2022-03-17 23:41:49,191 INFO L226 Difference]: Without dead ends: 72354 [2022-03-17 23:41:49,281 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 691 SyntacticMatches, 17 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 7742 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=2309, Invalid=17431, Unknown=0, NotChecked=0, Total=19740 [2022-03-17 23:41:49,282 INFO L912 BasicCegarLoop]: 435 mSDtfsCounter, 1430 mSDsluCounter, 6975 mSDsCounter, 0 mSdLazyCounter, 5076 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 7410 SdHoareTripleChecker+Invalid, 6889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 5076 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1681 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:49,282 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1430 Valid, 7410 Invalid, 6889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 5076 Invalid, 1 Unknown, 1681 Unchecked, 13.2s Time] [2022-03-17 23:41:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72354 states. [2022-03-17 23:41:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72354 to 43652. [2022-03-17 23:41:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43652 states, 43647 states have (on average 1.4122391000526955) internal successors, (61640), 43647 states have internal predecessors, (61640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43652 states to 43652 states and 61644 transitions. [2022-03-17 23:41:51,076 INFO L78 Accepts]: Start accepts. Automaton has 43652 states and 61644 transitions. Word has length 324 [2022-03-17 23:41:51,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:51,077 INFO L478 AbstractCegarLoop]: Abstraction has 43652 states and 61644 transitions. [2022-03-17 23:41:51,077 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 11.673913043478262) internal successors, (537), 45 states have internal predecessors, (537), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 43652 states and 61644 transitions. [2022-03-17 23:41:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-03-17 23:41:51,110 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:51,110 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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] [2022-03-17 23:41:51,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-17 23:41:51,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:51,311 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1938042449, now seen corresponding path program 1 times [2022-03-17 23:41:51,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:51,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986665588] [2022-03-17 23:41:51,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:51,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:51,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 667 proven. 77 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-03-17 23:41:51,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:51,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986665588] [2022-03-17 23:41:51,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986665588] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:41:51,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700580821] [2022-03-17 23:41:51,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:51,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:41:51,602 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) [2022-03-17 23:41:51,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-17 23:41:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:52,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-17 23:41:52,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:41:52,864 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:41:52,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:41:52,906 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:41:52,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:41:53,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-17 23:41:53,093 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:41:53,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:41:53,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:41:53,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 675 proven. 94 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-03-17 23:41:53,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:41:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 23:41:53,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700580821] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:41:53,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:41:53,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 12 [2022-03-17 23:41:53,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166128941] [2022-03-17 23:41:53,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:53,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:53,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:53,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:53,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:41:53,632 INFO L87 Difference]: Start difference. First operand 43652 states and 61644 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:55,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:55,937 INFO L93 Difference]: Finished difference Result 91696 states and 128887 transitions. [2022-03-17 23:41:55,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:55,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 324 [2022-03-17 23:41:55,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:55,988 INFO L225 Difference]: With dead ends: 91696 [2022-03-17 23:41:55,988 INFO L226 Difference]: Without dead ends: 48072 [2022-03-17 23:41:56,006 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-17 23:41:56,007 INFO L912 BasicCegarLoop]: 173 mSDtfsCounter, 93 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:56,007 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 457 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-17 23:41:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48072 states. [2022-03-17 23:41:57,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48072 to 44697. [2022-03-17 23:41:57,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44697 states, 44692 states have (on average 1.390942450550434) internal successors, (62164), 44692 states have internal predecessors, (62164), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44697 states to 44697 states and 62168 transitions. [2022-03-17 23:41:57,312 INFO L78 Accepts]: Start accepts. Automaton has 44697 states and 62168 transitions. Word has length 324 [2022-03-17 23:41:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:57,312 INFO L478 AbstractCegarLoop]: Abstraction has 44697 states and 62168 transitions. [2022-03-17 23:41:57,313 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 44697 states and 62168 transitions. [2022-03-17 23:41:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-17 23:41:57,345 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:57,345 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:57,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-17 23:41:57,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:57,547 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1634540469, now seen corresponding path program 1 times [2022-03-17 23:41:57,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:57,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374984259] [2022-03-17 23:41:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:57,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:58,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-17 23:41:58,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:58,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374984259] [2022-03-17 23:41:58,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374984259] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:41:58,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742145315] [2022-03-17 23:41:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:58,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:58,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:41:58,760 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:41:58,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-17 23:42:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:00,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 103 conjunts are in the unsatisfiable core [2022-03-17 23:42:00,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:42:00,338 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:42:00,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:42:00,433 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:42:00,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 23:42:00,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-17 23:42:00,566 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:42:00,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:42:00,576 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:42:00,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:42:00,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:00,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:42:00,606 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:42:00,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:42:00,614 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:42:00,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-17 23:42:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,214 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:42:01,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:42:01,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:42:01,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:42:01,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,293 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:42:01,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:42:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:42:01,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:42:01,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,950 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:42:01,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:42:01,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:01,986 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:42:01,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 23:42:02,032 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 23:42:02,032 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 [2022-03-17 23:42:03,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,536 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 325 treesize of output 271 [2022-03-17 23:42:03,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:03,552 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 325 treesize of output 253 [2022-03-17 23:42:03,609 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-17 23:42:03,609 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 325 treesize of output 344 [2022-03-17 23:42:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,823 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 320 treesize of output 262 [2022-03-17 23:42:08,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,850 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:42:08,850 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 320 treesize of output 314 [2022-03-17 23:42:08,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:08,856 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 327 treesize of output 251 [2022-03-17 23:42:09,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:09,192 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:42:09,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 204 [2022-03-17 23:42:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:09,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 120 [2022-03-17 23:42:09,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:09,226 INFO L356 Elim1Store]: treesize reduction 89, result has 25.2 percent of original size [2022-03-17 23:42:09,226 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 101 treesize of output 102 [2022-03-17 23:42:09,322 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:42:09,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 23:42:09,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:09,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:09,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:09,330 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 33 treesize of output 35 [2022-03-17 23:42:09,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-17 23:42:09,343 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 23:42:09,480 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:42:09,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:42:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 23:42:09,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:42:11,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:11,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:11,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-17 23:42:11,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:11,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:11,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-17 23:42:33,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:33,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:33,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-03-17 23:42:33,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:33,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:33,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:42:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:42:33,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-17 23:42:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 23:42:34,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742145315] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:42:34,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:42:34,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 15] total 47 [2022-03-17 23:42:34,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530197147] [2022-03-17 23:42:34,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:42:34,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-17 23:42:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:34,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-17 23:42:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=1825, Unknown=9, NotChecked=0, Total=2162 [2022-03-17 23:42:34,095 INFO L87 Difference]: Start difference. First operand 44697 states and 62168 transitions. Second operand has 47 states, 47 states have (on average 11.46808510638298) internal successors, (539), 46 states have internal predecessors, (539), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:36,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:38,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:40,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:42,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:44,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:46,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:48,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:11,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:11,051 INFO L93 Difference]: Finished difference Result 267835 states and 361102 transitions. [2022-03-17 23:43:11,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2022-03-17 23:43:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 11.46808510638298) internal successors, (539), 46 states have internal predecessors, (539), 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 325 [2022-03-17 23:43:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:11,415 INFO L225 Difference]: With dead ends: 267835 [2022-03-17 23:43:11,415 INFO L226 Difference]: Without dead ends: 223166 [2022-03-17 23:43:11,457 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 895 GetRequests, 701 SyntacticMatches, 11 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13081 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=3181, Invalid=30850, Unknown=9, NotChecked=0, Total=34040 [2022-03-17 23:43:11,458 INFO L912 BasicCegarLoop]: 557 mSDtfsCounter, 2372 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 8848 mSolverCounterSat, 364 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 10354 SdHoareTripleChecker+Invalid, 12577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 8848 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 3359 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:11,458 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2372 Valid, 10354 Invalid, 12577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 8848 Invalid, 6 Unknown, 3359 Unchecked, 22.7s Time] [2022-03-17 23:43:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223166 states. [2022-03-17 23:43:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223166 to 80022. [2022-03-17 23:43:14,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80022 states, 80017 states have (on average 1.4358573803066847) internal successors, (114893), 80017 states have internal predecessors, (114893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80022 states to 80022 states and 114897 transitions. [2022-03-17 23:43:14,780 INFO L78 Accepts]: Start accepts. Automaton has 80022 states and 114897 transitions. Word has length 325 [2022-03-17 23:43:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:14,780 INFO L478 AbstractCegarLoop]: Abstraction has 80022 states and 114897 transitions. [2022-03-17 23:43:14,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 11.46808510638298) internal successors, (539), 46 states have internal predecessors, (539), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 80022 states and 114897 transitions. [2022-03-17 23:43:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-17 23:43:14,825 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:14,825 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:14,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-17 23:43:15,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:43:15,026 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:15,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:15,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1427079342, now seen corresponding path program 1 times [2022-03-17 23:43:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:15,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217404464] [2022-03-17 23:43:15,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:15,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 432 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 23:43:15,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:15,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217404464] [2022-03-17 23:43:15,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217404464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:15,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:15,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935436719] [2022-03-17 23:43:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:15,219 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:15,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:15,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:15,220 INFO L87 Difference]: Start difference. First operand 80022 states and 114897 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:19,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:21,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:23,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:25,926 INFO L93 Difference]: Finished difference Result 160438 states and 230310 transitions. [2022-03-17 23:43:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:25,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 325 [2022-03-17 23:43:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:26,020 INFO L225 Difference]: With dead ends: 160438 [2022-03-17 23:43:26,021 INFO L226 Difference]: Without dead ends: 80444 [2022-03-17 23:43:26,068 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:43:26,069 INFO L912 BasicCegarLoop]: 226 mSDtfsCounter, 28 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:26,069 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 566 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-17 23:43:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80444 states. [2022-03-17 23:43:28,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80444 to 79721. [2022-03-17 23:43:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79721 states, 79716 states have (on average 1.4366501078829845) internal successors, (114524), 79716 states have internal predecessors, (114524), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79721 states to 79721 states and 114528 transitions. [2022-03-17 23:43:28,900 INFO L78 Accepts]: Start accepts. Automaton has 79721 states and 114528 transitions. Word has length 325 [2022-03-17 23:43:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:28,900 INFO L478 AbstractCegarLoop]: Abstraction has 79721 states and 114528 transitions. [2022-03-17 23:43:28,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 79721 states and 114528 transitions. [2022-03-17 23:43:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-17 23:43:28,943 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:28,943 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:28,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-17 23:43:28,943 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:28,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:28,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2089298307, now seen corresponding path program 1 times [2022-03-17 23:43:28,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:28,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717731003] [2022-03-17 23:43:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:28,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:29,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 490 proven. 326 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-17 23:43:29,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:29,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717731003] [2022-03-17 23:43:29,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717731003] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:43:29,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828481947] [2022-03-17 23:43:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:29,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:43:29,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:43:29,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:43:29,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-17 23:43:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:31,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-17 23:43:31,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:43:31,229 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:43:31,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:43:31,315 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:43:31,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 23:43:31,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-03-17 23:43:31,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 23:43:31,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:31,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:43:31,496 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:43:31,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:43:31,503 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:43:31,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-03-17 23:43:31,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:31,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:43:31,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:31,974 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:43:31,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:43:31,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:31,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:43:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:32,041 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:43:32,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:43:32,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:32,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:43:32,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:32,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:43:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:32,629 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:43:32,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:43:32,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:32,664 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:43:32,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 23:43:32,711 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 23:43:32,711 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 [2022-03-17 23:43:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,740 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 289 treesize of output 247 [2022-03-17 23:43:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,750 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 289 treesize of output 247 [2022-03-17 23:43:35,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:35,780 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-17 23:43:35,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 289 treesize of output 293 [2022-03-17 23:44:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,887 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 284 treesize of output 238 [2022-03-17 23:44:49,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,915 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-03-17 23:44:49,915 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 284 treesize of output 274 [2022-03-17 23:44:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:49,925 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 284 treesize of output 238 [2022-03-17 23:44:51,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:51,174 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 150 treesize of output 108 [2022-03-17 23:44:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:51,181 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 108 treesize of output 72 [2022-03-17 23:44:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:44:51,217 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-03-17 23:44:51,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 87 [2022-03-17 23:44:51,320 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:44:51,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 23:44:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 479 proven. 309 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-17 23:44:51,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:44:55,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:44:55,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:44:55,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-03-17 23:44:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 549 proven. 177 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-03-17 23:44:57,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828481947] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:44:57,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:44:57,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 14] total 42 [2022-03-17 23:44:57,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493228954] [2022-03-17 23:44:57,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:44:57,744 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-17 23:44:57,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:57,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-17 23:44:57,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1461, Unknown=1, NotChecked=0, Total=1722 [2022-03-17 23:44:57,745 INFO L87 Difference]: Start difference. First operand 79721 states and 114528 transitions. Second operand has 42 states, 42 states have (on average 13.571428571428571) internal successors, (570), 41 states have internal predecessors, (570), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:59,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:00,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:02,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:04,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:06,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:08,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:10,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:11,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:14,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:15,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:16,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:18,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:52,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:52,037 INFO L93 Difference]: Finished difference Result 291147 states and 410169 transitions. [2022-03-17 23:45:52,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2022-03-17 23:45:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 13.571428571428571) internal successors, (570), 41 states have internal predecessors, (570), 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 325 [2022-03-17 23:45:52,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:52,504 INFO L225 Difference]: With dead ends: 291147 [2022-03-17 23:45:52,504 INFO L226 Difference]: Without dead ends: 211454 [2022-03-17 23:45:52,571 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 744 SyntacticMatches, 45 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 25937 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=5861, Invalid=50544, Unknown=1, NotChecked=0, Total=56406 [2022-03-17 23:45:52,571 INFO L912 BasicCegarLoop]: 700 mSDtfsCounter, 3235 mSDsluCounter, 12359 mSDsCounter, 0 mSdLazyCounter, 13649 mSolverCounterSat, 622 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 13059 SdHoareTripleChecker+Invalid, 22247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 13649 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 7972 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:52,571 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3235 Valid, 13059 Invalid, 22247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 13649 Invalid, 4 Unknown, 7972 Unchecked, 33.0s Time] [2022-03-17 23:45:52,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211454 states. [2022-03-17 23:45:57,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211454 to 118577. [2022-03-17 23:45:57,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118577 states, 118572 states have (on average 1.4073896029416726) internal successors, (166877), 118572 states have internal predecessors, (166877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118577 states to 118577 states and 166881 transitions. [2022-03-17 23:45:57,644 INFO L78 Accepts]: Start accepts. Automaton has 118577 states and 166881 transitions. Word has length 325 [2022-03-17 23:45:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:57,644 INFO L478 AbstractCegarLoop]: Abstraction has 118577 states and 166881 transitions. [2022-03-17 23:45:57,644 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 13.571428571428571) internal successors, (570), 41 states have internal predecessors, (570), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:57,644 INFO L276 IsEmpty]: Start isEmpty. Operand 118577 states and 166881 transitions. [2022-03-17 23:45:57,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-03-17 23:45:57,708 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:57,708 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 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] [2022-03-17 23:45:57,909 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forcibly destroying the process [2022-03-17 23:45:57,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-17 23:45:57,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-03-17 23:45:57,910 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:57,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1093355143, now seen corresponding path program 1 times [2022-03-17 23:45:57,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:57,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537143915] [2022-03-17 23:45:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:57,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:58,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 23:45:58,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:58,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537143915] [2022-03-17 23:45:58,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537143915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:58,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:58,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:45:58,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591810595] [2022-03-17 23:45:58,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:58,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:45:58,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:58,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:45:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:45:58,096 INFO L87 Difference]: Start difference. First operand 118577 states and 166881 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:59,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:02,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:04,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:09,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:09,189 INFO L93 Difference]: Finished difference Result 237392 states and 334008 transitions. [2022-03-17 23:46:09,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:09,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 325 [2022-03-17 23:46:09,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:09,369 INFO L225 Difference]: With dead ends: 237392 [2022-03-17 23:46:09,370 INFO L226 Difference]: Without dead ends: 118843 [2022-03-17 23:46:09,569 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:46:09,569 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 34 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:09,569 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 521 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:46:09,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118843 states. [2022-03-17 23:46:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118843 to 118577. [2022-03-17 23:46:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118577 states, 118572 states have (on average 1.4060570792429916) internal successors, (166719), 118572 states have internal predecessors, (166719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118577 states to 118577 states and 166723 transitions. [2022-03-17 23:46:14,156 INFO L78 Accepts]: Start accepts. Automaton has 118577 states and 166723 transitions. Word has length 325 [2022-03-17 23:46:14,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:14,156 INFO L478 AbstractCegarLoop]: Abstraction has 118577 states and 166723 transitions. [2022-03-17 23:46:14,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:14,157 INFO L276 IsEmpty]: Start isEmpty. Operand 118577 states and 166723 transitions. [2022-03-17 23:46:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-03-17 23:46:14,223 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:14,223 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 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] [2022-03-17 23:46:14,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-17 23:46:14,223 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:14,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash -476660746, now seen corresponding path program 1 times [2022-03-17 23:46:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:14,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138696330] [2022-03-17 23:46:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-03-17 23:46:14,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:14,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138696330] [2022-03-17 23:46:14,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138696330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:14,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:14,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957601458] [2022-03-17 23:46:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:14,575 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:14,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:14,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:14,575 INFO L87 Difference]: Start difference. First operand 118577 states and 166723 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:17,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:19,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:23,927 INFO L93 Difference]: Finished difference Result 232977 states and 327843 transitions. [2022-03-17 23:46:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:23,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-03-17 23:46:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:24,096 INFO L225 Difference]: With dead ends: 232977 [2022-03-17 23:46:24,096 INFO L226 Difference]: Without dead ends: 114428 [2022-03-17 23:46:24,315 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:46:24,316 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:24,316 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 515 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 419 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:46:24,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114428 states. [2022-03-17 23:46:28,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114428 to 113039. [2022-03-17 23:46:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113039 states, 113034 states have (on average 1.4092131571031725) internal successors, (159289), 113034 states have internal predecessors, (159289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113039 states to 113039 states and 159293 transitions. [2022-03-17 23:46:28,686 INFO L78 Accepts]: Start accepts. Automaton has 113039 states and 159293 transitions. Word has length 326 [2022-03-17 23:46:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:28,687 INFO L478 AbstractCegarLoop]: Abstraction has 113039 states and 159293 transitions. [2022-03-17 23:46:28,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 113039 states and 159293 transitions. [2022-03-17 23:46:28,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-03-17 23:46:28,918 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:28,919 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:28,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-17 23:46:28,919 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:28,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:28,919 INFO L85 PathProgramCache]: Analyzing trace with hash 870645626, now seen corresponding path program 1 times [2022-03-17 23:46:28,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:28,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791398453] [2022-03-17 23:46:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:28,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:29,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 23:46:29,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791398453] [2022-03-17 23:46:29,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791398453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:29,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:29,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:29,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139065291] [2022-03-17 23:46:29,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:29,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:29,081 INFO L87 Difference]: Start difference. First operand 113039 states and 159293 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:31,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:33,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:37,489 INFO L93 Difference]: Finished difference Result 226385 states and 318960 transitions. [2022-03-17 23:46:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 334 [2022-03-17 23:46:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:37,765 INFO L225 Difference]: With dead ends: 226385 [2022-03-17 23:46:37,765 INFO L226 Difference]: Without dead ends: 113374 [2022-03-17 23:46:37,816 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:46:37,816 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:37,817 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 563 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:46:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113374 states. [2022-03-17 23:46:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113374 to 111899. [2022-03-17 23:46:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111899 states, 111894 states have (on average 1.410093481330545) internal successors, (157781), 111894 states have internal predecessors, (157781), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111899 states to 111899 states and 157785 transitions. [2022-03-17 23:46:42,091 INFO L78 Accepts]: Start accepts. Automaton has 111899 states and 157785 transitions. Word has length 334 [2022-03-17 23:46:42,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:42,091 INFO L478 AbstractCegarLoop]: Abstraction has 111899 states and 157785 transitions. [2022-03-17 23:46:42,091 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 111899 states and 157785 transitions. [2022-03-17 23:46:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-03-17 23:46:42,323 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:42,323 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:42,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-17 23:46:42,324 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:42,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:42,324 INFO L85 PathProgramCache]: Analyzing trace with hash -680768906, now seen corresponding path program 1 times [2022-03-17 23:46:42,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:42,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481778381] [2022-03-17 23:46:42,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:42,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 23:46:42,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:42,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481778381] [2022-03-17 23:46:42,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481778381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:42,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:42,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:42,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455084202] [2022-03-17 23:46:42,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:42,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:42,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:42,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:42,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:42,481 INFO L87 Difference]: Start difference. First operand 111899 states and 157785 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:43,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:45,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:47,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:49,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:53,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:53,923 INFO L93 Difference]: Finished difference Result 225245 states and 317384 transitions. [2022-03-17 23:46:53,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:53,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 335 [2022-03-17 23:46:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:54,090 INFO L225 Difference]: With dead ends: 225245 [2022-03-17 23:46:54,090 INFO L226 Difference]: Without dead ends: 113374 [2022-03-17 23:46:54,153 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:46:54,153 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 13 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:54,153 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 561 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 381 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:46:54,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113374 states. [2022-03-17 23:46:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113374 to 113099. [2022-03-17 23:46:58,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113099 states, 113094 states have (on average 1.4083240490211681) internal successors, (159273), 113094 states have internal predecessors, (159273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:58,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113099 states to 113099 states and 159277 transitions. [2022-03-17 23:46:58,472 INFO L78 Accepts]: Start accepts. Automaton has 113099 states and 159277 transitions. Word has length 335 [2022-03-17 23:46:58,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:58,472 INFO L478 AbstractCegarLoop]: Abstraction has 113099 states and 159277 transitions. [2022-03-17 23:46:58,472 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 113099 states and 159277 transitions. [2022-03-17 23:46:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-03-17 23:46:58,536 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:58,536 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:58,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-17 23:46:58,536 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:58,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:58,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1838721939, now seen corresponding path program 1 times [2022-03-17 23:46:58,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:58,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645995013] [2022-03-17 23:46:58,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:58,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-03-17 23:46:58,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:58,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645995013] [2022-03-17 23:46:58,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645995013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:58,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:58,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:58,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104698482] [2022-03-17 23:46:58,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:58,887 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:58,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:58,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:58,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:58,888 INFO L87 Difference]: Start difference. First operand 113099 states and 159277 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:47:00,073 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 [] [2022-03-17 23:47:02,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:04,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:06,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:10,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:47:10,055 INFO L93 Difference]: Finished difference Result 225973 states and 318260 transitions. [2022-03-17 23:47:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:47:10,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 336 [2022-03-17 23:47:10,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:47:10,352 INFO L225 Difference]: With dead ends: 225973 [2022-03-17 23:47:10,352 INFO L226 Difference]: Without dead ends: 111314 [2022-03-17 23:47:10,415 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:47:10,416 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 10 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:47:10,416 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 555 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 371 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-17 23:47:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111314 states. [2022-03-17 23:47:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111314 to 110175. [2022-03-17 23:47:14,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110175 states, 110170 states have (on average 1.403049832077698) internal successors, (154574), 110170 states have internal predecessors, (154574), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:47:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110175 states to 110175 states and 154578 transitions. [2022-03-17 23:47:14,410 INFO L78 Accepts]: Start accepts. Automaton has 110175 states and 154578 transitions. Word has length 336 [2022-03-17 23:47:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:47:14,410 INFO L478 AbstractCegarLoop]: Abstraction has 110175 states and 154578 transitions. [2022-03-17 23:47:14,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:47:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 110175 states and 154578 transitions. [2022-03-17 23:47:14,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-03-17 23:47:14,474 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:47:14,474 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 4, 4, 4, 4, 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] [2022-03-17 23:47:14,474 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-17 23:47:14,474 INFO L403 AbstractCegarLoop]: === Iteration 80 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:47:14,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:47:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash 525244343, now seen corresponding path program 1 times [2022-03-17 23:47:14,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:47:14,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500720220] [2022-03-17 23:47:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:47:14,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:47:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:47:14,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:47:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:47:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-03-17 23:47:14,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:47:14,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500720220] [2022-03-17 23:47:14,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500720220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:47:14,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:47:14,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:47:14,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064298857] [2022-03-17 23:47:14,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:47:14,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:47:14,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:47:14,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:47:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:47:14,869 INFO L87 Difference]: Start difference. First operand 110175 states and 154578 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)