/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:40:06,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:40:06,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:40:07,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:40:07,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:40:07,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:40:07,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:40:07,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:40:07,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:40:07,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:40:07,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:40:07,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:40:07,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:40:07,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:40:07,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:40:07,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:40:07,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:40:07,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:40:07,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:40:07,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:40:07,077 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:40:07,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:40:07,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:40:07,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:40:07,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:40:07,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:40:07,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:40:07,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:40:07,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:40:07,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:40:07,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:40:07,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:40:07,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:40:07,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:40:07,093 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 23:40:07,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:40:07,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:40:07,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:40:07,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:40:07,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:40:07,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:40:07,114 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:40:07,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:40:07,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:40:07,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:40:07,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:40:07,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:40:07,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:40:07,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:40:07,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:40:07,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:40:07,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:40:07,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:40:07,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:40:07,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:40:07,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:40:07,118 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:40:07,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:40:07,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:40:07,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:40:07,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:40:07,353 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:40:07,355 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:40:07,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-17 23:40:07,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5907a7b5a/a9484ebe1247477ea9e46da6f34186c8/FLAG0f26d459a [2022-03-17 23:40:07,837 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:40:07,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c [2022-03-17 23:40:07,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5907a7b5a/a9484ebe1247477ea9e46da6f34186c8/FLAG0f26d459a [2022-03-17 23:40:07,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5907a7b5a/a9484ebe1247477ea9e46da6f34186c8 [2022-03-17 23:40:07,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:40:07,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:40:07,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:40:07,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:40:07,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:40:07,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:40:07" (1/1) ... [2022-03-17 23:40:07,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed364f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:07, skipping insertion in model container [2022-03-17 23:40:07,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:40:07" (1/1) ... [2022-03-17 23:40:07,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:40:07,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:40:08,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c[75833,75846] [2022-03-17 23:40:08,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:40:08,236 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:40:08,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-2.c[75833,75846] [2022-03-17 23:40:08,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:40:08,334 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:40:08,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08 WrapperNode [2022-03-17 23:40:08,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:40:08,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:40:08,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:40:08,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:40:08,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:40:08,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:40:08,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:40:08,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:40:08,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (1/1) ... [2022-03-17 23:40:08,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:40:08,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:40:08,464 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 23:40:08,482 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 23:40:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:40:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:40:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:40:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:40:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:40:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:40:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:40:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:40:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:40:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:40:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:40:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:40:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:40:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:40:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:40:08,649 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:40:08,650 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:40:09,625 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:40:10,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:40:10,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:40:10,103 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:40:10,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:40:10,110 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:40:10,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:40:10 BoogieIcfgContainer [2022-03-17 23:40:10,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:40:10,112 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:40:10,112 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:40:10,113 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:40:10,115 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:40:10" (1/1) ... [2022-03-17 23:40:10,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:40:10 BasicIcfg [2022-03-17 23:40:10,159 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:40:10,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:40:10,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:40:10,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:40:10,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:40:07" (1/4) ... [2022-03-17 23:40:10,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1e2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:40:10, skipping insertion in model container [2022-03-17 23:40:10,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:40:08" (2/4) ... [2022-03-17 23:40:10,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1e2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:40:10, skipping insertion in model container [2022-03-17 23:40:10,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:40:10" (3/4) ... [2022-03-17 23:40:10,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1e2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:40:10, skipping insertion in model container [2022-03-17 23:40:10,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:40:10" (4/4) ... [2022-03-17 23:40:10,164 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-2.cqvasr [2022-03-17 23:40:10,169 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:40:10,169 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:40:10,211 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:40:10,216 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 23:40:10,216 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:40:10,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:40:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-17 23:40:10,253 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:10,254 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, 1] [2022-03-17 23:40:10,254 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:10,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash -6184136, now seen corresponding path program 1 times [2022-03-17 23:40:10,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:10,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763953616] [2022-03-17 23:40:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:10,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:10,712 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 23:40:10,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:10,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763953616] [2022-03-17 23:40:10,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763953616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:10,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:10,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:10,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503989715] [2022-03-17 23:40:10,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:10,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:10,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:10,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:10,741 INFO L87 Difference]: Start difference. First operand has 162 states, 154 states have (on average 1.7142857142857142) internal successors, (264), 155 states have internal predecessors, (264), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:12,096 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 23:40:14,115 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 23:40:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:15,843 INFO L93 Difference]: Finished difference Result 440 states and 746 transitions. [2022-03-17 23:40:15,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:15,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-17 23:40:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:15,855 INFO L225 Difference]: With dead ends: 440 [2022-03-17 23:40:15,855 INFO L226 Difference]: Without dead ends: 267 [2022-03-17 23:40:15,857 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 23:40:15,859 INFO L912 BasicCegarLoop]: 166 mSDtfsCounter, 158 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:15,860 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 487 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 543 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:40:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-17 23:40:15,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 186. [2022-03-17 23:40:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.6132596685082874) internal successors, (292), 181 states have internal predecessors, (292), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 296 transitions. [2022-03-17 23:40:15,896 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 296 transitions. Word has length 51 [2022-03-17 23:40:15,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:15,897 INFO L478 AbstractCegarLoop]: Abstraction has 186 states and 296 transitions. [2022-03-17 23:40:15,897 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 296 transitions. [2022-03-17 23:40:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 23:40:15,898 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:15,899 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, 1, 1] [2022-03-17 23:40:15,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:40:15,899 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:15,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:15,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1976632800, now seen corresponding path program 1 times [2022-03-17 23:40:15,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:15,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815313083] [2022-03-17 23:40:15,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:15,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:16,052 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 23:40:16,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:16,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815313083] [2022-03-17 23:40:16,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815313083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:16,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:16,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:16,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674621051] [2022-03-17 23:40:16,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:16,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:16,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:16,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:16,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:16,056 INFO L87 Difference]: Start difference. First operand 186 states and 296 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:17,481 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 23:40:19,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:21,520 WARN L534 Checker$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 23:40:22,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:22,697 INFO L93 Difference]: Finished difference Result 385 states and 614 transitions. [2022-03-17 23:40:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:22,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-17 23:40:22,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:22,699 INFO L225 Difference]: With dead ends: 385 [2022-03-17 23:40:22,699 INFO L226 Difference]: Without dead ends: 214 [2022-03-17 23:40:22,700 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 23:40:22,700 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 22 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:22,701 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 505 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:40:22,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-17 23:40:22,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 197. [2022-03-17 23:40:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.6197916666666667) internal successors, (311), 192 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:22,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 315 transitions. [2022-03-17 23:40:22,711 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 315 transitions. Word has length 52 [2022-03-17 23:40:22,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:22,711 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 315 transitions. [2022-03-17 23:40:22,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:22,711 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 315 transitions. [2022-03-17 23:40:22,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:40:22,713 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:22,713 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:22,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:40:22,713 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:22,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:22,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1845941417, now seen corresponding path program 1 times [2022-03-17 23:40:22,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:22,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378959442] [2022-03-17 23:40:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:22,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:22,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:22,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378959442] [2022-03-17 23:40:22,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378959442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:22,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:22,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392395838] [2022-03-17 23:40:22,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:22,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:22,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:22,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:22,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:22,845 INFO L87 Difference]: Start difference. First operand 197 states and 315 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:24,852 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 23:40:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:25,320 INFO L93 Difference]: Finished difference Result 385 states and 613 transitions. [2022-03-17 23:40:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 23:40:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:25,322 INFO L225 Difference]: With dead ends: 385 [2022-03-17 23:40:25,322 INFO L226 Difference]: Without dead ends: 214 [2022-03-17 23:40:25,322 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 23:40:25,323 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 24 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:25,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 507 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:40:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-17 23:40:25,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 197. [2022-03-17 23:40:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.6145833333333333) internal successors, (310), 192 states have internal predecessors, (310), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 314 transitions. [2022-03-17 23:40:25,332 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 314 transitions. Word has length 65 [2022-03-17 23:40:25,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:25,332 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 314 transitions. [2022-03-17 23:40:25,332 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 23:40:25,333 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 314 transitions. [2022-03-17 23:40:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:25,334 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:25,334 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:25,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:40:25,334 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:25,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:25,335 INFO L85 PathProgramCache]: Analyzing trace with hash 247845242, now seen corresponding path program 1 times [2022-03-17 23:40:25,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:25,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520198204] [2022-03-17 23:40:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:25,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:25,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:25,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520198204] [2022-03-17 23:40:25,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520198204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:25,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:25,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893019641] [2022-03-17 23:40:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:25,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:25,528 INFO L87 Difference]: Start difference. First operand 197 states and 314 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:28,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:29,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:30,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:30,889 INFO L93 Difference]: Finished difference Result 487 states and 778 transitions. [2022-03-17 23:40:30,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:30,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:40:30,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:30,890 INFO L225 Difference]: With dead ends: 487 [2022-03-17 23:40:30,891 INFO L226 Difference]: Without dead ends: 316 [2022-03-17 23:40:30,891 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 23:40:30,892 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 154 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:30,892 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 370 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:40:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-17 23:40:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 208. [2022-03-17 23:40:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5960591133004927) internal successors, (324), 203 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 328 transitions. [2022-03-17 23:40:30,903 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 328 transitions. Word has length 66 [2022-03-17 23:40:30,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:30,903 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 328 transitions. [2022-03-17 23:40:30,903 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 23:40:30,904 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 328 transitions. [2022-03-17 23:40:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:30,905 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:30,905 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:30,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:40:30,905 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:30,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:30,905 INFO L85 PathProgramCache]: Analyzing trace with hash -454246, now seen corresponding path program 1 times [2022-03-17 23:40:30,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:30,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42333380] [2022-03-17 23:40:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:30,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:31,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:31,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:31,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42333380] [2022-03-17 23:40:31,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42333380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:31,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:31,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:31,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894459555] [2022-03-17 23:40:31,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:31,028 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:31,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:31,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:31,029 INFO L87 Difference]: Start difference. First operand 208 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:32,563 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 23:40:33,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:36,252 WARN L534 Checker$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 23:40:36,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:36,608 INFO L93 Difference]: Finished difference Result 406 states and 640 transitions. [2022-03-17 23:40:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:36,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:40:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:36,609 INFO L225 Difference]: With dead ends: 406 [2022-03-17 23:40:36,610 INFO L226 Difference]: Without dead ends: 224 [2022-03-17 23:40:36,610 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 23:40:36,611 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:36,611 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 509 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:40:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-03-17 23:40:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 208. [2022-03-17 23:40:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:36,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-03-17 23:40:36,619 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 66 [2022-03-17 23:40:36,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:36,619 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-03-17 23:40:36,619 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 23:40:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-03-17 23:40:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:36,620 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:36,620 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:36,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:40:36,621 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1973943770, now seen corresponding path program 1 times [2022-03-17 23:40:36,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:36,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621758895] [2022-03-17 23:40:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:36,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:36,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621758895] [2022-03-17 23:40:36,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621758895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:36,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:36,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637407356] [2022-03-17 23:40:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:36,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:36,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:36,739 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:38,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:40,286 WARN L534 Checker$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 23:40:41,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:43,344 WARN L534 Checker$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 23:40:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:43,850 INFO L93 Difference]: Finished difference Result 498 states and 789 transitions. [2022-03-17 23:40:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:43,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:40:43,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:43,852 INFO L225 Difference]: With dead ends: 498 [2022-03-17 23:40:43,852 INFO L226 Difference]: Without dead ends: 316 [2022-03-17 23:40:43,852 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 23:40:43,853 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 147 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:43,853 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 370 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-17 23:40:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-17 23:40:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 214. [2022-03-17 23:40:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5885167464114833) internal successors, (332), 209 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 336 transitions. [2022-03-17 23:40:43,859 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 336 transitions. Word has length 66 [2022-03-17 23:40:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:43,859 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 336 transitions. [2022-03-17 23:40:43,859 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 23:40:43,859 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 336 transitions. [2022-03-17 23:40:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:40:43,860 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:43,860 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:43,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:40:43,860 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:43,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2096433926, now seen corresponding path program 1 times [2022-03-17 23:40:43,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:43,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885359129] [2022-03-17 23:40:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:43,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:43,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:43,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885359129] [2022-03-17 23:40:43,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885359129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:43,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:43,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:43,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245289511] [2022-03-17 23:40:43,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:43,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:43,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:43,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:43,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:43,967 INFO L87 Difference]: Start difference. First operand 214 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:46,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:48,727 WARN L534 Checker$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 23:40:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:49,661 INFO L93 Difference]: Finished difference Result 503 states and 795 transitions. [2022-03-17 23:40:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:49,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:40:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:49,663 INFO L225 Difference]: With dead ends: 503 [2022-03-17 23:40:49,663 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 23:40:49,664 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 23:40:49,664 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 145 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:49,664 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:40:49,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 23:40:49,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 215. [2022-03-17 23:40:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5761904761904761) internal successors, (331), 210 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 335 transitions. [2022-03-17 23:40:49,670 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 335 transitions. Word has length 66 [2022-03-17 23:40:49,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:49,670 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 335 transitions. [2022-03-17 23:40:49,670 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 23:40:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 335 transitions. [2022-03-17 23:40:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:40:49,671 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:49,671 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:49,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:40:49,671 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1602851383, now seen corresponding path program 1 times [2022-03-17 23:40:49,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:49,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488645472] [2022-03-17 23:40:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:49,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:49,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:49,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488645472] [2022-03-17 23:40:49,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488645472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:49,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:49,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:49,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941303016] [2022-03-17 23:40:49,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:49,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:49,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:49,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:49,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:49,810 INFO L87 Difference]: Start difference. First operand 215 states and 335 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:51,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:52,337 WARN L534 Checker$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 23:40:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:53,359 INFO L93 Difference]: Finished difference Result 504 states and 792 transitions. [2022-03-17 23:40:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 23:40:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:53,360 INFO L225 Difference]: With dead ends: 504 [2022-03-17 23:40:53,360 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 23:40:53,361 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 23:40:53,361 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 149 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:53,362 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 23:40:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 23:40:53,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 215. [2022-03-17 23:40:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.561904761904762) internal successors, (328), 210 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 332 transitions. [2022-03-17 23:40:53,367 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 332 transitions. Word has length 67 [2022-03-17 23:40:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:53,367 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 332 transitions. [2022-03-17 23:40:53,367 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 23:40:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 332 transitions. [2022-03-17 23:40:53,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 23:40:53,368 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:53,368 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:53,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:40:53,368 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash -265319106, now seen corresponding path program 1 times [2022-03-17 23:40:53,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:53,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140342792] [2022-03-17 23:40:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:53,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:53,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:53,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:53,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140342792] [2022-03-17 23:40:53,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140342792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:53,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:53,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:53,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600322212] [2022-03-17 23:40:53,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:53,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:53,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:53,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:53,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:53,458 INFO L87 Difference]: Start difference. First operand 215 states and 332 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:55,469 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 23:40:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:55,811 INFO L93 Difference]: Finished difference Result 417 states and 649 transitions. [2022-03-17 23:40:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-17 23:40:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:55,812 INFO L225 Difference]: With dead ends: 417 [2022-03-17 23:40:55,812 INFO L226 Difference]: Without dead ends: 228 [2022-03-17 23:40:55,813 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 23:40:55,813 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 20 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:55,813 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 515 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:40:55,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-03-17 23:40:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 215. [2022-03-17 23:40:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5571428571428572) internal successors, (327), 210 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:55,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 331 transitions. [2022-03-17 23:40:55,818 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 331 transitions. Word has length 68 [2022-03-17 23:40:55,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:55,818 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 331 transitions. [2022-03-17 23:40:55,818 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 331 transitions. [2022-03-17 23:40:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 23:40:55,819 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:55,819 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:55,819 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:40:55,819 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:55,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:55,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1927659802, now seen corresponding path program 1 times [2022-03-17 23:40:55,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:55,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921829649] [2022-03-17 23:40:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:55,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:55,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:55,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:55,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921829649] [2022-03-17 23:40:55,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921829649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:55,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:55,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:55,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744713742] [2022-03-17 23:40:55,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:55,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:55,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:55,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:55,937 INFO L87 Difference]: Start difference. First operand 215 states and 331 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:59,457 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 23:40:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:59,892 INFO L93 Difference]: Finished difference Result 504 states and 786 transitions. [2022-03-17 23:40:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:59,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-17 23:40:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:59,894 INFO L225 Difference]: With dead ends: 504 [2022-03-17 23:40:59,894 INFO L226 Difference]: Without dead ends: 315 [2022-03-17 23:40:59,895 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 23:40:59,895 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 146 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:59,895 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 372 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-17 23:40:59,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-17 23:40:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 215. [2022-03-17 23:40:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.542857142857143) internal successors, (324), 210 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 328 transitions. [2022-03-17 23:40:59,900 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 328 transitions. Word has length 69 [2022-03-17 23:40:59,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:59,900 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 328 transitions. [2022-03-17 23:40:59,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 328 transitions. [2022-03-17 23:40:59,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 23:40:59,908 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:59,908 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:59,908 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:40:59,908 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:59,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:59,909 INFO L85 PathProgramCache]: Analyzing trace with hash -749768695, now seen corresponding path program 1 times [2022-03-17 23:40:59,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:59,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796724975] [2022-03-17 23:40:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:59,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:40:59,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:59,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796724975] [2022-03-17 23:40:59,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796724975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:59,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:59,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887639503] [2022-03-17 23:40:59,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:59,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:59,989 INFO L87 Difference]: Start difference. First operand 215 states and 328 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:01,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:03,691 WARN L534 Checker$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 23:41:05,718 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 23:41:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:06,780 INFO L93 Difference]: Finished difference Result 445 states and 685 transitions. [2022-03-17 23:41:06,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:06,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-17 23:41:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:06,782 INFO L225 Difference]: With dead ends: 445 [2022-03-17 23:41:06,782 INFO L226 Difference]: Without dead ends: 256 [2022-03-17 23:41:06,783 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 23:41:06,783 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 29 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:06,783 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 531 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:41:06,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-17 23:41:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 237. [2022-03-17 23:41:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-03-17 23:41:06,788 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 69 [2022-03-17 23:41:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:06,788 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-03-17 23:41:06,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:06,788 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-03-17 23:41:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 23:41:06,789 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:06,789 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:06,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:41:06,789 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:06,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash 215701518, now seen corresponding path program 1 times [2022-03-17 23:41:06,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:06,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24572208] [2022-03-17 23:41:06,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:06,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:41:06,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:06,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24572208] [2022-03-17 23:41:06,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24572208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:06,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:06,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:06,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761651495] [2022-03-17 23:41:06,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:06,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:06,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:06,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:06,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:06,909 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:08,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:10,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:12,093 WARN L534 Checker$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 23:41:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:13,338 INFO L93 Difference]: Finished difference Result 465 states and 715 transitions. [2022-03-17 23:41:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:13,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-17 23:41:13,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:13,340 INFO L225 Difference]: With dead ends: 465 [2022-03-17 23:41:13,340 INFO L226 Difference]: Without dead ends: 254 [2022-03-17 23:41:13,340 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 23:41:13,341 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 34 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:13,341 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 535 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 395 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:41:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-03-17 23:41:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 237. [2022-03-17 23:41:13,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-03-17 23:41:13,346 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 82 [2022-03-17 23:41:13,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:13,346 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-03-17 23:41:13,346 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 23:41:13,346 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-03-17 23:41:13,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:41:13,347 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:13,347 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:13,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:41:13,347 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:13,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash -514032701, now seen corresponding path program 1 times [2022-03-17 23:41:13,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:13,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078243366] [2022-03-17 23:41:13,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:13,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-17 23:41:13,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:13,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078243366] [2022-03-17 23:41:13,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078243366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:13,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:13,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:13,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541586270] [2022-03-17 23:41:13,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:13,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:13,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:13,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:13,471 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:16,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:18,433 WARN L534 Checker$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 23:41:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:18,951 INFO L93 Difference]: Finished difference Result 476 states and 729 transitions. [2022-03-17 23:41:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:18,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-17 23:41:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:18,952 INFO L225 Difference]: With dead ends: 476 [2022-03-17 23:41:18,952 INFO L226 Difference]: Without dead ends: 265 [2022-03-17 23:41:18,953 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 23:41:18,953 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:18,953 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 592 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 399 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:41:18,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-17 23:41:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 253. [2022-03-17 23:41:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.528225806451613) internal successors, (379), 248 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 383 transitions. [2022-03-17 23:41:18,958 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 383 transitions. Word has length 83 [2022-03-17 23:41:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:18,958 INFO L478 AbstractCegarLoop]: Abstraction has 253 states and 383 transitions. [2022-03-17 23:41:18,958 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 23:41:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 383 transitions. [2022-03-17 23:41:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:41:18,959 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:18,959 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:18,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:41:18,959 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1386877897, now seen corresponding path program 1 times [2022-03-17 23:41:18,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:18,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393310917] [2022-03-17 23:41:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:18,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:19,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:19,073 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:41:19,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:19,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393310917] [2022-03-17 23:41:19,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393310917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:19,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:19,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:19,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993734028] [2022-03-17 23:41:19,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:19,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:19,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:19,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:19,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:19,075 INFO L87 Difference]: Start difference. First operand 253 states and 383 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:22,331 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 23:41:22,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:22,686 INFO L93 Difference]: Finished difference Result 497 states and 759 transitions. [2022-03-17 23:41:22,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:22,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-17 23:41:22,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:22,687 INFO L225 Difference]: With dead ends: 497 [2022-03-17 23:41:22,688 INFO L226 Difference]: Without dead ends: 270 [2022-03-17 23:41:22,688 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 23:41:22,688 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 37 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:22,689 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 535 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 23:41:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-17 23:41:22,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-03-17 23:41:22,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5241935483870968) internal successors, (378), 248 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 382 transitions. [2022-03-17 23:41:22,693 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 382 transitions. Word has length 84 [2022-03-17 23:41:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:22,693 INFO L478 AbstractCegarLoop]: Abstraction has 253 states and 382 transitions. [2022-03-17 23:41:22,694 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 23:41:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 382 transitions. [2022-03-17 23:41:22,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-17 23:41:22,696 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:22,696 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:22,696 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:41:22,696 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:22,697 INFO L85 PathProgramCache]: Analyzing trace with hash -835179803, now seen corresponding path program 1 times [2022-03-17 23:41:22,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:22,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612032132] [2022-03-17 23:41:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:22,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:41:22,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:22,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612032132] [2022-03-17 23:41:22,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612032132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:22,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:22,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:22,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818302146] [2022-03-17 23:41:22,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:22,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:22,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:22,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:22,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:22,790 INFO L87 Difference]: Start difference. First operand 253 states and 382 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:24,797 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 23:41:25,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:25,227 INFO L93 Difference]: Finished difference Result 580 states and 889 transitions. [2022-03-17 23:41:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:25,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-17 23:41:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:25,228 INFO L225 Difference]: With dead ends: 580 [2022-03-17 23:41:25,229 INFO L226 Difference]: Without dead ends: 353 [2022-03-17 23:41:25,229 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 23:41:25,229 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 147 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:25,230 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 372 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-17 23:41:25,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 253. [2022-03-17 23:41:25,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5080645161290323) internal successors, (374), 248 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 378 transitions. [2022-03-17 23:41:25,235 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 378 transitions. Word has length 86 [2022-03-17 23:41:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:25,235 INFO L478 AbstractCegarLoop]: Abstraction has 253 states and 378 transitions. [2022-03-17 23:41:25,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:25,235 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 378 transitions. [2022-03-17 23:41:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 23:41:25,236 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:25,236 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:25,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:41:25,236 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:25,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:25,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1120132566, now seen corresponding path program 1 times [2022-03-17 23:41:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:25,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403993893] [2022-03-17 23:41:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:25,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:25,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403993893] [2022-03-17 23:41:25,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403993893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:25,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:25,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:25,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719133704] [2022-03-17 23:41:25,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:25,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:25,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:25,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:25,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:25,340 INFO L87 Difference]: Start difference. First operand 253 states and 378 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:26,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:28,816 WARN L534 Checker$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 23:41:30,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:32,867 WARN L534 Checker$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 23:41:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:33,303 INFO L93 Difference]: Finished difference Result 579 states and 875 transitions. [2022-03-17 23:41:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:33,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-17 23:41:33,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:33,304 INFO L225 Difference]: With dead ends: 579 [2022-03-17 23:41:33,304 INFO L226 Difference]: Without dead ends: 352 [2022-03-17 23:41:33,305 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 23:41:33,306 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 82 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 14 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:33,306 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 489 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 520 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-17 23:41:33,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-17 23:41:33,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 295. [2022-03-17 23:41:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.5275862068965518) internal successors, (443), 290 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 447 transitions. [2022-03-17 23:41:33,311 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 447 transitions. Word has length 91 [2022-03-17 23:41:33,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:33,312 INFO L478 AbstractCegarLoop]: Abstraction has 295 states and 447 transitions. [2022-03-17 23:41:33,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:33,312 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 447 transitions. [2022-03-17 23:41:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-17 23:41:33,312 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:33,312 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:33,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:41:33,313 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1568829205, now seen corresponding path program 1 times [2022-03-17 23:41:33,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:33,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746747565] [2022-03-17 23:41:33,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:33,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:33,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:33,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:33,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746747565] [2022-03-17 23:41:33,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746747565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:33,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:33,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:33,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448577079] [2022-03-17 23:41:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:33,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:33,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:33,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:33,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:33,412 INFO L87 Difference]: Start difference. First operand 295 states and 447 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:36,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:38,159 WARN L534 Checker$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 23:41:39,186 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 23:41:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:39,627 INFO L93 Difference]: Finished difference Result 664 states and 1019 transitions. [2022-03-17 23:41:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:39,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-17 23:41:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:39,639 INFO L225 Difference]: With dead ends: 664 [2022-03-17 23:41:39,640 INFO L226 Difference]: Without dead ends: 395 [2022-03-17 23:41:39,640 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 23:41:39,640 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 120 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:39,641 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:41:39,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-03-17 23:41:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 275. [2022-03-17 23:41:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 270 states have (on average 1.5444444444444445) internal successors, (417), 270 states have internal predecessors, (417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 421 transitions. [2022-03-17 23:41:39,654 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 421 transitions. Word has length 91 [2022-03-17 23:41:39,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:39,655 INFO L478 AbstractCegarLoop]: Abstraction has 275 states and 421 transitions. [2022-03-17 23:41:39,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:39,655 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 421 transitions. [2022-03-17 23:41:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-17 23:41:39,656 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:39,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:39,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:41:39,656 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:39,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:39,656 INFO L85 PathProgramCache]: Analyzing trace with hash -537617853, now seen corresponding path program 1 times [2022-03-17 23:41:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:39,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704378770] [2022-03-17 23:41:39,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:39,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:39,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:39,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704378770] [2022-03-17 23:41:39,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704378770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:39,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:39,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:39,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246041921] [2022-03-17 23:41:39,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:39,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:39,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:39,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:39,769 INFO L87 Difference]: Start difference. First operand 275 states and 421 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:41,783 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 23:41:42,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:42,216 INFO L93 Difference]: Finished difference Result 620 states and 956 transitions. [2022-03-17 23:41:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:42,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-17 23:41:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:42,218 INFO L225 Difference]: With dead ends: 620 [2022-03-17 23:41:42,218 INFO L226 Difference]: Without dead ends: 371 [2022-03-17 23:41:42,218 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 23:41:42,219 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 88 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:42,219 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 495 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-03-17 23:41:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 309. [2022-03-17 23:41:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 304 states have (on average 1.549342105263158) internal successors, (471), 304 states have internal predecessors, (471), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 475 transitions. [2022-03-17 23:41:42,224 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 475 transitions. Word has length 119 [2022-03-17 23:41:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:42,225 INFO L478 AbstractCegarLoop]: Abstraction has 309 states and 475 transitions. [2022-03-17 23:41:42,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 475 transitions. [2022-03-17 23:41:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-17 23:41:42,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:42,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:42,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:41:42,226 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:42,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:42,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1021293180, now seen corresponding path program 1 times [2022-03-17 23:41:42,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:42,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026661675] [2022-03-17 23:41:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:42,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:41:42,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:42,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026661675] [2022-03-17 23:41:42,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026661675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:42,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:42,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:42,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787500493] [2022-03-17 23:41:42,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:42,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:42,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:42,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:42,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:42,319 INFO L87 Difference]: Start difference. First operand 309 states and 475 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:44,336 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 23:41:44,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:44,785 INFO L93 Difference]: Finished difference Result 746 states and 1161 transitions. [2022-03-17 23:41:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:44,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-17 23:41:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:44,787 INFO L225 Difference]: With dead ends: 746 [2022-03-17 23:41:44,787 INFO L226 Difference]: Without dead ends: 463 [2022-03-17 23:41:44,787 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 23:41:44,788 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 126 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:44,788 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:44,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-03-17 23:41:44,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 339. [2022-03-17 23:41:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 334 states have (on average 1.5598802395209581) internal successors, (521), 334 states have internal predecessors, (521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 525 transitions. [2022-03-17 23:41:44,794 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 525 transitions. Word has length 119 [2022-03-17 23:41:44,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:44,794 INFO L478 AbstractCegarLoop]: Abstraction has 339 states and 525 transitions. [2022-03-17 23:41:44,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:44,794 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 525 transitions. [2022-03-17 23:41:44,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:41:44,795 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:44,795 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, 1, 1] [2022-03-17 23:41:44,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:41:44,795 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:44,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash 772961685, now seen corresponding path program 1 times [2022-03-17 23:41:44,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:44,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079467195] [2022-03-17 23:41:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:44,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:44,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:44,889 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 23:41:44,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:44,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079467195] [2022-03-17 23:41:44,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079467195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:44,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:44,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316246269] [2022-03-17 23:41:44,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:44,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:44,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:44,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:44,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:44,890 INFO L87 Difference]: Start difference. First operand 339 states and 525 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:46,903 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 23:41:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:47,327 INFO L93 Difference]: Finished difference Result 748 states and 1163 transitions. [2022-03-17 23:41:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:47,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 23:41:47,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:47,329 INFO L225 Difference]: With dead ends: 748 [2022-03-17 23:41:47,329 INFO L226 Difference]: Without dead ends: 435 [2022-03-17 23:41:47,329 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 23:41:47,330 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 82 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:47,330 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 499 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:41:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-17 23:41:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 378. [2022-03-17 23:41:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5656836461126005) internal successors, (584), 373 states have internal predecessors, (584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 588 transitions. [2022-03-17 23:41:47,336 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 588 transitions. Word has length 124 [2022-03-17 23:41:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:47,336 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 588 transitions. [2022-03-17 23:41:47,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 588 transitions. [2022-03-17 23:41:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:41:47,337 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:47,337 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, 1, 1] [2022-03-17 23:41:47,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:41:47,338 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1881776884, now seen corresponding path program 1 times [2022-03-17 23:41:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:47,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806588506] [2022-03-17 23:41:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:47,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:47,475 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 23:41:47,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:47,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806588506] [2022-03-17 23:41:47,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806588506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:47,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:47,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:47,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764965639] [2022-03-17 23:41:47,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:47,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:47,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:47,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:47,477 INFO L87 Difference]: Start difference. First operand 378 states and 588 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:48,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:49,982 WARN L534 Checker$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 23:41:51,997 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 23:41:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:52,965 INFO L93 Difference]: Finished difference Result 848 states and 1323 transitions. [2022-03-17 23:41:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:52,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 23:41:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:52,967 INFO L225 Difference]: With dead ends: 848 [2022-03-17 23:41:52,967 INFO L226 Difference]: Without dead ends: 496 [2022-03-17 23:41:52,967 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 23:41:52,968 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 122 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:52,968 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 370 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:41:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-03-17 23:41:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 376. [2022-03-17 23:41:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.5660377358490567) internal successors, (581), 371 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 585 transitions. [2022-03-17 23:41:52,974 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 585 transitions. Word has length 124 [2022-03-17 23:41:52,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:52,974 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 585 transitions. [2022-03-17 23:41:52,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:52,975 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 585 transitions. [2022-03-17 23:41:52,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-17 23:41:52,975 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:52,976 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, 1, 1] [2022-03-17 23:41:52,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:41:52,976 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:52,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1400381102, now seen corresponding path program 1 times [2022-03-17 23:41:52,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:52,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419529899] [2022-03-17 23:41:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:53,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:53,066 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 23:41:53,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:53,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419529899] [2022-03-17 23:41:53,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419529899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:53,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:53,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:53,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453931463] [2022-03-17 23:41:53,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:53,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:53,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:53,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:53,068 INFO L87 Difference]: Start difference. First operand 376 states and 585 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:54,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:56,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:58,909 WARN L534 Checker$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 23:42:00,933 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 23:42:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:01,394 INFO L93 Difference]: Finished difference Result 804 states and 1251 transitions. [2022-03-17 23:42:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:01,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-17 23:42:01,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:01,395 INFO L225 Difference]: With dead ends: 804 [2022-03-17 23:42:01,395 INFO L226 Difference]: Without dead ends: 454 [2022-03-17 23:42:01,396 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 23:42:01,396 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 121 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:01,396 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 398 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 492 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-17 23:42:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-03-17 23:42:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 376. [2022-03-17 23:42:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.5606469002695418) internal successors, (579), 371 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 583 transitions. [2022-03-17 23:42:01,402 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 583 transitions. Word has length 125 [2022-03-17 23:42:01,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:01,403 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 583 transitions. [2022-03-17 23:42:01,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:01,403 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 583 transitions. [2022-03-17 23:42:01,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:42:01,404 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:01,404 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:01,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:42:01,404 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:01,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:01,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1931032870, now seen corresponding path program 1 times [2022-03-17 23:42:01,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:01,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011239350] [2022-03-17 23:42:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:01,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:01,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:01,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011239350] [2022-03-17 23:42:01,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011239350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:01,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:01,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:01,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63347706] [2022-03-17 23:42:01,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:01,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:01,498 INFO L87 Difference]: Start difference. First operand 376 states and 583 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:03,506 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 23:42:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:03,933 INFO L93 Difference]: Finished difference Result 818 states and 1273 transitions. [2022-03-17 23:42:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:03,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:42:03,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:03,935 INFO L225 Difference]: With dead ends: 818 [2022-03-17 23:42:03,935 INFO L226 Difference]: Without dead ends: 468 [2022-03-17 23:42:03,936 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 23:42:03,936 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 100 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:03,936 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 499 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:42:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-17 23:42:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 394. [2022-03-17 23:42:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5501285347043703) internal successors, (603), 389 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 607 transitions. [2022-03-17 23:42:03,943 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 607 transitions. Word has length 132 [2022-03-17 23:42:03,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:03,943 INFO L478 AbstractCegarLoop]: Abstraction has 394 states and 607 transitions. [2022-03-17 23:42:03,943 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 607 transitions. [2022-03-17 23:42:03,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:42:03,944 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:03,944 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:03,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:42:03,944 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:03,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1156016251, now seen corresponding path program 1 times [2022-03-17 23:42:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888490260] [2022-03-17 23:42:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:03,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:04,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:04,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888490260] [2022-03-17 23:42:04,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888490260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:04,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:04,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476431493] [2022-03-17 23:42:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:04,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:04,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:04,032 INFO L87 Difference]: Start difference. First operand 394 states and 607 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:05,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:07,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:09,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:11,357 WARN L534 Checker$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 23:42:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:11,852 INFO L93 Difference]: Finished difference Result 852 states and 1319 transitions. [2022-03-17 23:42:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:11,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:42:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:11,854 INFO L225 Difference]: With dead ends: 852 [2022-03-17 23:42:11,854 INFO L226 Difference]: Without dead ends: 484 [2022-03-17 23:42:11,855 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 23:42:11,855 INFO L912 BasicCegarLoop]: 284 mSDtfsCounter, 100 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:11,855 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 689 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 618 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-17 23:42:11,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-03-17 23:42:11,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 393. [2022-03-17 23:42:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5515463917525774) internal successors, (602), 388 states have internal predecessors, (602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 606 transitions. [2022-03-17 23:42:11,861 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 606 transitions. Word has length 132 [2022-03-17 23:42:11,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:11,862 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 606 transitions. [2022-03-17 23:42:11,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 606 transitions. [2022-03-17 23:42:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:42:11,863 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:11,863 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, 1, 1] [2022-03-17 23:42:11,863 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:42:11,863 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash -512603857, now seen corresponding path program 1 times [2022-03-17 23:42:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:11,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25512263] [2022-03-17 23:42:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:11,950 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 23:42:11,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:11,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25512263] [2022-03-17 23:42:11,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25512263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:11,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:11,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:11,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881800901] [2022-03-17 23:42:11,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:11,951 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:11,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:11,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:11,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:11,952 INFO L87 Difference]: Start difference. First operand 393 states and 606 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:14,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:17,912 WARN L534 Checker$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 23:42:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:18,336 INFO L93 Difference]: Finished difference Result 878 states and 1357 transitions. [2022-03-17 23:42:18,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:18,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 23:42:18,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:18,338 INFO L225 Difference]: With dead ends: 878 [2022-03-17 23:42:18,338 INFO L226 Difference]: Without dead ends: 511 [2022-03-17 23:42:18,339 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 23:42:18,344 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 114 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:18,344 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 371 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:42:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-03-17 23:42:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 436. [2022-03-17 23:42:18,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.556844547563805) internal successors, (671), 431 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 675 transitions. [2022-03-17 23:42:18,356 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 675 transitions. Word has length 133 [2022-03-17 23:42:18,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:18,357 INFO L478 AbstractCegarLoop]: Abstraction has 436 states and 675 transitions. [2022-03-17 23:42:18,357 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:18,357 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 675 transitions. [2022-03-17 23:42:18,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 23:42:18,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:18,358 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, 1, 1, 1] [2022-03-17 23:42:18,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:42:18,359 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:18,359 INFO L85 PathProgramCache]: Analyzing trace with hash -796549232, now seen corresponding path program 1 times [2022-03-17 23:42:18,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:18,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116423272] [2022-03-17 23:42:18,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:18,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:18,454 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 23:42:18,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:18,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116423272] [2022-03-17 23:42:18,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116423272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:18,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:18,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:18,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620463917] [2022-03-17 23:42:18,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:18,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:18,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:18,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:18,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:18,456 INFO L87 Difference]: Start difference. First operand 436 states and 675 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:21,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:23,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:23,547 INFO L93 Difference]: Finished difference Result 928 states and 1440 transitions. [2022-03-17 23:42:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:23,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 23:42:23,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:23,549 INFO L225 Difference]: With dead ends: 928 [2022-03-17 23:42:23,549 INFO L226 Difference]: Without dead ends: 518 [2022-03-17 23:42:23,549 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 23:42:23,550 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 60 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:23,550 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 507 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:42:23,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-17 23:42:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 478. [2022-03-17 23:42:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5560253699788584) internal successors, (736), 473 states have internal predecessors, (736), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 740 transitions. [2022-03-17 23:42:23,559 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 740 transitions. Word has length 134 [2022-03-17 23:42:23,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:23,559 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 740 transitions. [2022-03-17 23:42:23,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:23,559 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 740 transitions. [2022-03-17 23:42:23,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 23:42:23,560 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:23,560 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, 1, 1, 1] [2022-03-17 23:42:23,560 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:42:23,561 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash 371647023, now seen corresponding path program 1 times [2022-03-17 23:42:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:23,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911477394] [2022-03-17 23:42:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:23,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:23,651 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 23:42:23,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:23,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911477394] [2022-03-17 23:42:23,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911477394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:23,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:23,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:23,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092285107] [2022-03-17 23:42:23,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:23,652 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:23,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:23,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:23,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:23,652 INFO L87 Difference]: Start difference. First operand 478 states and 740 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:26,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:28,761 WARN L534 Checker$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 23:42:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:29,298 INFO L93 Difference]: Finished difference Result 1008 states and 1561 transitions. [2022-03-17 23:42:29,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:29,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 23:42:29,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:29,301 INFO L225 Difference]: With dead ends: 1008 [2022-03-17 23:42:29,301 INFO L226 Difference]: Without dead ends: 554 [2022-03-17 23:42:29,301 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 23:42:29,302 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 115 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:29,302 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 398 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:42:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-03-17 23:42:29,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 480. [2022-03-17 23:42:29,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5557894736842106) internal successors, (739), 475 states have internal predecessors, (739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 743 transitions. [2022-03-17 23:42:29,311 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 743 transitions. Word has length 134 [2022-03-17 23:42:29,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:29,312 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 743 transitions. [2022-03-17 23:42:29,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:29,312 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 743 transitions. [2022-03-17 23:42:29,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:42:29,313 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:29,313 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:29,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:42:29,313 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:29,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1478589548, now seen corresponding path program 1 times [2022-03-17 23:42:29,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:29,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094802452] [2022-03-17 23:42:29,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:29,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:29,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:42:29,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:29,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094802452] [2022-03-17 23:42:29,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094802452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:29,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:29,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:29,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423645224] [2022-03-17 23:42:29,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:29,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:29,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:29,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:29,428 INFO L87 Difference]: Start difference. First operand 480 states and 743 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:31,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:33,426 WARN L534 Checker$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 23:42:35,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:37,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:37,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:37,803 INFO L93 Difference]: Finished difference Result 998 states and 1547 transitions. [2022-03-17 23:42:37,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:37,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:42:37,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:37,805 INFO L225 Difference]: With dead ends: 998 [2022-03-17 23:42:37,805 INFO L226 Difference]: Without dead ends: 544 [2022-03-17 23:42:37,806 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 23:42:37,806 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 137 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:37,806 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-03-17 23:42:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-03-17 23:42:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 480. [2022-03-17 23:42:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5368421052631578) internal successors, (730), 475 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 734 transitions. [2022-03-17 23:42:37,813 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 734 transitions. Word has length 146 [2022-03-17 23:42:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:37,814 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 734 transitions. [2022-03-17 23:42:37,814 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 23:42:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 734 transitions. [2022-03-17 23:42:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:42:37,815 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:37,815 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:42:37,815 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:42:37,815 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:37,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:37,815 INFO L85 PathProgramCache]: Analyzing trace with hash 24615192, now seen corresponding path program 1 times [2022-03-17 23:42:37,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:37,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808053705] [2022-03-17 23:42:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:37,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:37,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:37,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808053705] [2022-03-17 23:42:37,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808053705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:37,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:37,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:37,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882835031] [2022-03-17 23:42:37,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:37,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:37,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:37,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:37,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:37,917 INFO L87 Difference]: Start difference. First operand 480 states and 734 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:39,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:40,458 WARN L534 Checker$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 23:42:41,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:43,632 WARN L534 Checker$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 23:42:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:44,045 INFO L93 Difference]: Finished difference Result 1040 states and 1595 transitions. [2022-03-17 23:42:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:44,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:42:44,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:44,047 INFO L225 Difference]: With dead ends: 1040 [2022-03-17 23:42:44,047 INFO L226 Difference]: Without dead ends: 586 [2022-03-17 23:42:44,048 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 23:42:44,048 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 118 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:44,049 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 414 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:42:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-17 23:42:44,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 510. [2022-03-17 23:42:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.5267326732673268) internal successors, (771), 505 states have internal predecessors, (771), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 775 transitions. [2022-03-17 23:42:44,063 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 775 transitions. Word has length 146 [2022-03-17 23:42:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:44,064 INFO L478 AbstractCegarLoop]: Abstraction has 510 states and 775 transitions. [2022-03-17 23:42:44,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 775 transitions. [2022-03-17 23:42:44,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 23:42:44,065 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:44,065 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:42:44,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:42:44,065 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash 511559468, now seen corresponding path program 1 times [2022-03-17 23:42:44,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:44,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607330907] [2022-03-17 23:42:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:44,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:44,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607330907] [2022-03-17 23:42:44,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607330907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:44,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:44,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:44,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078005887] [2022-03-17 23:42:44,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:44,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:44,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:44,154 INFO L87 Difference]: Start difference. First operand 510 states and 775 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:47,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:48,103 WARN L534 Checker$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 23:42:48,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:48,501 INFO L93 Difference]: Finished difference Result 1058 states and 1611 transitions. [2022-03-17 23:42:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:48,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-17 23:42:48,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:48,503 INFO L225 Difference]: With dead ends: 1058 [2022-03-17 23:42:48,503 INFO L226 Difference]: Without dead ends: 574 [2022-03-17 23:42:48,503 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 23:42:48,504 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 117 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:48,504 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:42:48,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-03-17 23:42:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 510. [2022-03-17 23:42:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 505 states have (on average 1.5128712871287129) internal successors, (764), 505 states have internal predecessors, (764), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 768 transitions. [2022-03-17 23:42:48,511 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 768 transitions. Word has length 147 [2022-03-17 23:42:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:48,511 INFO L478 AbstractCegarLoop]: Abstraction has 510 states and 768 transitions. [2022-03-17 23:42:48,511 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 768 transitions. [2022-03-17 23:42:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:42:48,512 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:48,512 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:48,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:42:48,513 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash -70968412, now seen corresponding path program 1 times [2022-03-17 23:42:48,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:48,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566660284] [2022-03-17 23:42:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:48,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:48,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566660284] [2022-03-17 23:42:48,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566660284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:48,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:48,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:48,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552079205] [2022-03-17 23:42:48,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:48,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:48,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:48,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:48,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:48,600 INFO L87 Difference]: Start difference. First operand 510 states and 768 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:49,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:51,497 WARN L534 Checker$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 23:42:53,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:55,557 WARN L534 Checker$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 23:42:55,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:55,966 INFO L93 Difference]: Finished difference Result 1100 states and 1661 transitions. [2022-03-17 23:42:55,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:55,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 23:42:55,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:55,968 INFO L225 Difference]: With dead ends: 1100 [2022-03-17 23:42:55,968 INFO L226 Difference]: Without dead ends: 616 [2022-03-17 23:42:55,969 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 23:42:55,969 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 119 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:55,970 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 414 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:42:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-03-17 23:42:55,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 538. [2022-03-17 23:42:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 533 states have (on average 1.5009380863039399) internal successors, (800), 533 states have internal predecessors, (800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 804 transitions. [2022-03-17 23:42:55,977 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 804 transitions. Word has length 149 [2022-03-17 23:42:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:55,978 INFO L478 AbstractCegarLoop]: Abstraction has 538 states and 804 transitions. [2022-03-17 23:42:55,978 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 23:42:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 804 transitions. [2022-03-17 23:42:55,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 23:42:55,979 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:55,979 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:42:55,979 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:42:55,979 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1676992206, now seen corresponding path program 1 times [2022-03-17 23:42:55,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:55,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501220302] [2022-03-17 23:42:55,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:55,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:56,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:56,088 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:42:56,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:56,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501220302] [2022-03-17 23:42:56,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501220302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:56,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:56,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:56,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665264399] [2022-03-17 23:42:56,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:56,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:56,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:56,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:56,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:56,089 INFO L87 Difference]: Start difference. First operand 538 states and 804 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:57,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:59,600 WARN L534 Checker$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 23:43:00,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:02,043 WARN L534 Checker$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 23:43:02,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:02,403 INFO L93 Difference]: Finished difference Result 1070 states and 1604 transitions. [2022-03-17 23:43:02,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:02,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 23:43:02,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:02,404 INFO L225 Difference]: With dead ends: 1070 [2022-03-17 23:43:02,404 INFO L226 Difference]: Without dead ends: 558 [2022-03-17 23:43:02,405 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 23:43:02,405 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 50 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:02,406 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 543 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:43:02,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-17 23:43:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 538. [2022-03-17 23:43:02,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 533 states have (on average 1.4990619136960601) internal successors, (799), 533 states have internal predecessors, (799), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 803 transitions. [2022-03-17 23:43:02,413 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 803 transitions. Word has length 150 [2022-03-17 23:43:02,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:02,413 INFO L478 AbstractCegarLoop]: Abstraction has 538 states and 803 transitions. [2022-03-17 23:43:02,414 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 803 transitions. [2022-03-17 23:43:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 23:43:02,415 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:02,415 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:43:02,415 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:43:02,415 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:02,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 743637869, now seen corresponding path program 1 times [2022-03-17 23:43:02,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:02,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668225951] [2022-03-17 23:43:02,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:02,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:02,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-03-17 23:43:02,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:02,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668225951] [2022-03-17 23:43:02,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668225951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:02,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:02,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:02,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812742016] [2022-03-17 23:43:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:02,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:02,504 INFO L87 Difference]: Start difference. First operand 538 states and 803 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:05,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:07,081 WARN L534 Checker$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 23:43:07,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:07,445 INFO L93 Difference]: Finished difference Result 1069 states and 1605 transitions. [2022-03-17 23:43:07,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:07,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 23:43:07,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:07,447 INFO L225 Difference]: With dead ends: 1069 [2022-03-17 23:43:07,447 INFO L226 Difference]: Without dead ends: 557 [2022-03-17 23:43:07,447 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 23:43:07,448 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 25 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:07,448 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 607 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:43:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-17 23:43:07,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 546. [2022-03-17 23:43:07,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 541 states have (on average 1.5009242144177448) internal successors, (812), 541 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:07,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 816 transitions. [2022-03-17 23:43:07,456 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 816 transitions. Word has length 150 [2022-03-17 23:43:07,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:07,456 INFO L478 AbstractCegarLoop]: Abstraction has 546 states and 816 transitions. [2022-03-17 23:43:07,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:07,457 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 816 transitions. [2022-03-17 23:43:07,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-17 23:43:07,458 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:07,458 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:07,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:43:07,458 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:07,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1962051972, now seen corresponding path program 1 times [2022-03-17 23:43:07,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:07,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61097887] [2022-03-17 23:43:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:07,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:43:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:07,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61097887] [2022-03-17 23:43:07,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61097887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:07,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:07,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:07,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190131248] [2022-03-17 23:43:07,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:07,550 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:07,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:07,551 INFO L87 Difference]: Start difference. First operand 546 states and 816 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:09,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:11,267 WARN L534 Checker$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 23:43:13,293 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 23:43:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:14,368 INFO L93 Difference]: Finished difference Result 1130 states and 1693 transitions. [2022-03-17 23:43:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-17 23:43:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:14,370 INFO L225 Difference]: With dead ends: 1130 [2022-03-17 23:43:14,370 INFO L226 Difference]: Without dead ends: 610 [2022-03-17 23:43:14,371 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 23:43:14,371 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 123 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:14,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 424 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:43:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-03-17 23:43:14,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 546. [2022-03-17 23:43:14,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 541 states have (on average 1.4842883548983363) internal successors, (803), 541 states have internal predecessors, (803), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 807 transitions. [2022-03-17 23:43:14,379 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 807 transitions. Word has length 154 [2022-03-17 23:43:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:14,379 INFO L478 AbstractCegarLoop]: Abstraction has 546 states and 807 transitions. [2022-03-17 23:43:14,380 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:14,380 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 807 transitions. [2022-03-17 23:43:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-17 23:43:14,380 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:14,381 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:14,381 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:43:14,381 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -497072477, now seen corresponding path program 1 times [2022-03-17 23:43:14,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:14,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419917805] [2022-03-17 23:43:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:43:14,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:14,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419917805] [2022-03-17 23:43:14,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419917805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:14,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:14,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713718748] [2022-03-17 23:43:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:14,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:14,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:14,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:14,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:14,493 INFO L87 Difference]: Start difference. First operand 546 states and 807 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,940 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 23:43:18,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:20,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:20,464 INFO L93 Difference]: Finished difference Result 1136 states and 1685 transitions. [2022-03-17 23:43:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:20,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-17 23:43:20,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:20,467 INFO L225 Difference]: With dead ends: 1136 [2022-03-17 23:43:20,467 INFO L226 Difference]: Without dead ends: 616 [2022-03-17 23:43:20,468 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 23:43:20,468 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 74 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:20,468 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 611 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 535 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:43:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-03-17 23:43:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 562. [2022-03-17 23:43:20,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4793536804308798) internal successors, (824), 557 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 828 transitions. [2022-03-17 23:43:20,478 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 828 transitions. Word has length 154 [2022-03-17 23:43:20,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:20,478 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 828 transitions. [2022-03-17 23:43:20,478 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 828 transitions. [2022-03-17 23:43:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 23:43:20,479 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:20,479 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:43:20,480 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:43:20,480 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash -713601832, now seen corresponding path program 1 times [2022-03-17 23:43:20,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:20,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109630170] [2022-03-17 23:43:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:20,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:20,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:20,587 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:43:20,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:20,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109630170] [2022-03-17 23:43:20,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109630170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:20,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:20,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:20,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432872830] [2022-03-17 23:43:20,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:20,588 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:20,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:20,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:20,588 INFO L87 Difference]: Start difference. First operand 562 states and 828 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:22,595 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 23:43:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:22,971 INFO L93 Difference]: Finished difference Result 1118 states and 1652 transitions. [2022-03-17 23:43:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:22,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 23:43:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:22,972 INFO L225 Difference]: With dead ends: 1118 [2022-03-17 23:43:22,972 INFO L226 Difference]: Without dead ends: 582 [2022-03-17 23:43:22,973 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 23:43:22,973 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 42 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:22,973 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 553 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:43:22,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-03-17 23:43:22,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 562. [2022-03-17 23:43:22,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4775583482944346) internal successors, (823), 557 states have internal predecessors, (823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 827 transitions. [2022-03-17 23:43:22,981 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 827 transitions. Word has length 156 [2022-03-17 23:43:22,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:22,981 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 827 transitions. [2022-03-17 23:43:22,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 827 transitions. [2022-03-17 23:43:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 23:43:22,982 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:22,982 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:43:22,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:43:22,982 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:22,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:22,982 INFO L85 PathProgramCache]: Analyzing trace with hash 741405720, now seen corresponding path program 1 times [2022-03-17 23:43:22,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:22,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761019870] [2022-03-17 23:43:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:22,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:43:23,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:23,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761019870] [2022-03-17 23:43:23,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761019870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:23,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:23,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750938877] [2022-03-17 23:43:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:23,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:23,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:23,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:23,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:23,075 INFO L87 Difference]: Start difference. First operand 562 states and 827 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:25,083 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 23:43:25,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:25,423 INFO L93 Difference]: Finished difference Result 1116 states and 1648 transitions. [2022-03-17 23:43:25,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:25,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 23:43:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:25,425 INFO L225 Difference]: With dead ends: 1116 [2022-03-17 23:43:25,425 INFO L226 Difference]: Without dead ends: 580 [2022-03-17 23:43:25,426 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 23:43:25,426 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 39 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:25,426 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 555 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:43:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-03-17 23:43:25,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 562. [2022-03-17 23:43:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4757630161579893) internal successors, (822), 557 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 826 transitions. [2022-03-17 23:43:25,433 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 826 transitions. Word has length 157 [2022-03-17 23:43:25,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:25,433 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 826 transitions. [2022-03-17 23:43:25,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 826 transitions. [2022-03-17 23:43:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-17 23:43:25,434 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:25,435 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:25,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:43:25,435 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2060278266, now seen corresponding path program 1 times [2022-03-17 23:43:25,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:25,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958559741] [2022-03-17 23:43:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:25,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:25,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:43:25,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:25,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958559741] [2022-03-17 23:43:25,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958559741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:25,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:25,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165972066] [2022-03-17 23:43:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:25,544 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:25,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:25,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:25,544 INFO L87 Difference]: Start difference. First operand 562 states and 826 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:26,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:28,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:30,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:32,461 WARN L534 Checker$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 23:43:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:32,845 INFO L93 Difference]: Finished difference Result 1116 states and 1646 transitions. [2022-03-17 23:43:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-17 23:43:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:32,846 INFO L225 Difference]: With dead ends: 1116 [2022-03-17 23:43:32,847 INFO L226 Difference]: Without dead ends: 580 [2022-03-17 23:43:32,847 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 23:43:32,847 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 48 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:32,848 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 555 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:43:32,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-03-17 23:43:32,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 562. [2022-03-17 23:43:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4739676840215439) internal successors, (821), 557 states have internal predecessors, (821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 825 transitions. [2022-03-17 23:43:32,855 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 825 transitions. Word has length 160 [2022-03-17 23:43:32,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:32,855 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 825 transitions. [2022-03-17 23:43:32,855 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:32,855 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 825 transitions. [2022-03-17 23:43:32,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-17 23:43:32,856 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:32,856 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:32,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:43:32,856 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:32,857 INFO L85 PathProgramCache]: Analyzing trace with hash -707827440, now seen corresponding path program 1 times [2022-03-17 23:43:32,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:32,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491024054] [2022-03-17 23:43:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:32,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:32,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:32,951 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:43:32,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:32,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491024054] [2022-03-17 23:43:32,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491024054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:32,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:32,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:32,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709332844] [2022-03-17 23:43:32,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:32,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:32,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:32,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:32,953 INFO L87 Difference]: Start difference. First operand 562 states and 825 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:34,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:36,126 WARN L534 Checker$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 23:43:38,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:40,002 WARN L534 Checker$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 23:43:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:40,419 INFO L93 Difference]: Finished difference Result 1162 states and 1711 transitions. [2022-03-17 23:43:40,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:40,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-17 23:43:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:40,420 INFO L225 Difference]: With dead ends: 1162 [2022-03-17 23:43:40,420 INFO L226 Difference]: Without dead ends: 626 [2022-03-17 23:43:40,421 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 23:43:40,421 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 120 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:40,422 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 414 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:43:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-03-17 23:43:40,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 562. [2022-03-17 23:43:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4578096947935368) internal successors, (812), 557 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 816 transitions. [2022-03-17 23:43:40,429 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 816 transitions. Word has length 161 [2022-03-17 23:43:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:40,431 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 816 transitions. [2022-03-17 23:43:40,431 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 816 transitions. [2022-03-17 23:43:40,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-17 23:43:40,432 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:40,432 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:40,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:43:40,432 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:40,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:40,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1350299265, now seen corresponding path program 1 times [2022-03-17 23:43:40,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:40,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278614416] [2022-03-17 23:43:40,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:40,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:43:40,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:40,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278614416] [2022-03-17 23:43:40,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278614416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:40,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:40,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:40,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303031896] [2022-03-17 23:43:40,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:40,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:40,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:40,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:40,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:40,515 INFO L87 Difference]: Start difference. First operand 562 states and 816 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:42,522 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 23:43:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:42,928 INFO L93 Difference]: Finished difference Result 1204 states and 1755 transitions. [2022-03-17 23:43:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:42,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-17 23:43:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:42,930 INFO L225 Difference]: With dead ends: 1204 [2022-03-17 23:43:42,930 INFO L226 Difference]: Without dead ends: 668 [2022-03-17 23:43:42,931 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 23:43:42,931 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 113 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:42,931 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 414 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:43:42,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-03-17 23:43:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 595. [2022-03-17 23:43:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4508474576271186) internal successors, (856), 590 states have internal predecessors, (856), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 860 transitions. [2022-03-17 23:43:42,939 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 860 transitions. Word has length 163 [2022-03-17 23:43:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:42,939 INFO L478 AbstractCegarLoop]: Abstraction has 595 states and 860 transitions. [2022-03-17 23:43:42,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 860 transitions. [2022-03-17 23:43:42,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 23:43:42,940 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:42,940 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:42,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:43:42,941 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash -858480992, now seen corresponding path program 1 times [2022-03-17 23:43:42,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:42,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663419208] [2022-03-17 23:43:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:42,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:43:43,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:43,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663419208] [2022-03-17 23:43:43,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663419208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:43,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:43,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:43,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720158724] [2022-03-17 23:43:43,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:43,035 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:43,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:43,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:43,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:43,036 INFO L87 Difference]: Start difference. First operand 595 states and 860 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:45,785 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 23:43:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:47,117 INFO L93 Difference]: Finished difference Result 1176 states and 1706 transitions. [2022-03-17 23:43:47,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:47,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-17 23:43:47,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:47,120 INFO L225 Difference]: With dead ends: 1176 [2022-03-17 23:43:47,120 INFO L226 Difference]: Without dead ends: 607 [2022-03-17 23:43:47,121 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 23:43:47,121 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:47,121 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 565 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:43:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-03-17 23:43:47,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 595. [2022-03-17 23:43:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.4491525423728813) internal successors, (855), 590 states have internal predecessors, (855), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:47,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 859 transitions. [2022-03-17 23:43:47,128 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 859 transitions. Word has length 164 [2022-03-17 23:43:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:47,129 INFO L478 AbstractCegarLoop]: Abstraction has 595 states and 859 transitions. [2022-03-17 23:43:47,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:47,129 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 859 transitions. [2022-03-17 23:43:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-17 23:43:47,130 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:47,130 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:47,130 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:43:47,130 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:47,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:47,130 INFO L85 PathProgramCache]: Analyzing trace with hash -521967861, now seen corresponding path program 1 times [2022-03-17 23:43:47,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:47,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202822749] [2022-03-17 23:43:47,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:47,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:43:47,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:47,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202822749] [2022-03-17 23:43:47,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202822749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:47,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:47,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:47,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831403770] [2022-03-17 23:43:47,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:47,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:47,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:47,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:47,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:47,230 INFO L87 Difference]: Start difference. First operand 595 states and 859 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:49,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:50,723 WARN L534 Checker$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 23:43:52,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:54,494 WARN L534 Checker$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 23:43:54,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:54,906 INFO L93 Difference]: Finished difference Result 1228 states and 1779 transitions. [2022-03-17 23:43:54,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:54,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-17 23:43:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:54,908 INFO L225 Difference]: With dead ends: 1228 [2022-03-17 23:43:54,908 INFO L226 Difference]: Without dead ends: 659 [2022-03-17 23:43:54,908 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 23:43:54,909 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 117 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:54,909 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 414 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:43:54,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-03-17 23:43:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 595. [2022-03-17 23:43:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 590 states have (on average 1.435593220338983) internal successors, (847), 590 states have internal predecessors, (847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 851 transitions. [2022-03-17 23:43:54,916 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 851 transitions. Word has length 172 [2022-03-17 23:43:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:54,917 INFO L478 AbstractCegarLoop]: Abstraction has 595 states and 851 transitions. [2022-03-17 23:43:54,917 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 851 transitions. [2022-03-17 23:43:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:43:54,918 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:54,918 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:54,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:43:54,918 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:54,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1184106110, now seen corresponding path program 1 times [2022-03-17 23:43:54,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:54,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609275562] [2022-03-17 23:43:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:55,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:55,025 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-17 23:43:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:55,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609275562] [2022-03-17 23:43:55,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609275562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:55,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:55,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:55,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129922548] [2022-03-17 23:43:55,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:55,027 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:55,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:55,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:55,027 INFO L87 Difference]: Start difference. First operand 595 states and 851 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:57,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:59,352 WARN L534 Checker$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 23:43:59,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:59,713 INFO L93 Difference]: Finished difference Result 1226 states and 1761 transitions. [2022-03-17 23:43:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:59,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:43:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:59,715 INFO L225 Difference]: With dead ends: 1226 [2022-03-17 23:43:59,715 INFO L226 Difference]: Without dead ends: 657 [2022-03-17 23:43:59,716 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 23:43:59,716 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 128 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:59,716 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 390 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:43:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-03-17 23:43:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 579. [2022-03-17 23:43:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 574 states have (on average 1.4233449477351916) internal successors, (817), 574 states have internal predecessors, (817), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:59,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 821 transitions. [2022-03-17 23:43:59,737 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 821 transitions. Word has length 173 [2022-03-17 23:43:59,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:59,737 INFO L478 AbstractCegarLoop]: Abstraction has 579 states and 821 transitions. [2022-03-17 23:43:59,737 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 23:43:59,737 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 821 transitions. [2022-03-17 23:43:59,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:43:59,738 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:59,738 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, 1, 1] [2022-03-17 23:43:59,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:43:59,739 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:59,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2102470359, now seen corresponding path program 1 times [2022-03-17 23:43:59,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:59,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558963762] [2022-03-17 23:43:59,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:59,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:59,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:59,827 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 23:43:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:59,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558963762] [2022-03-17 23:43:59,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558963762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:59,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:59,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:43:59,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157140552] [2022-03-17 23:43:59,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:59,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:59,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:43:59,828 INFO L87 Difference]: Start difference. First operand 579 states and 821 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:02,242 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 23:44:02,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:02,671 INFO L93 Difference]: Finished difference Result 1676 states and 2391 transitions. [2022-03-17 23:44:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:02,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 23:44:02,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:02,674 INFO L225 Difference]: With dead ends: 1676 [2022-03-17 23:44:02,674 INFO L226 Difference]: Without dead ends: 1123 [2022-03-17 23:44:02,674 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 23:44:02,675 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:02,675 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 578 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 23:44:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-03-17 23:44:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1123. [2022-03-17 23:44:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1118 states have (on average 1.4177101967799641) internal successors, (1585), 1118 states have internal predecessors, (1585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1589 transitions. [2022-03-17 23:44:02,688 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1589 transitions. Word has length 174 [2022-03-17 23:44:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:02,689 INFO L478 AbstractCegarLoop]: Abstraction has 1123 states and 1589 transitions. [2022-03-17 23:44:02,689 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1589 transitions. [2022-03-17 23:44:02,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-17 23:44:02,690 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:02,690 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, 1, 1, 1] [2022-03-17 23:44:02,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:44:02,690 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash 689207752, now seen corresponding path program 1 times [2022-03-17 23:44:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:02,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070691047] [2022-03-17 23:44:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:02,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:02,789 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 23:44:02,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:02,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070691047] [2022-03-17 23:44:02,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070691047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:02,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:02,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:02,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083998423] [2022-03-17 23:44:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:02,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:02,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:02,790 INFO L87 Difference]: Start difference. First operand 1123 states and 1589 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:05,776 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 23:44:07,799 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 23:44:08,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:08,198 INFO L93 Difference]: Finished difference Result 2732 states and 3882 transitions. [2022-03-17 23:44:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:08,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-17 23:44:08,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:08,202 INFO L225 Difference]: With dead ends: 2732 [2022-03-17 23:44:08,202 INFO L226 Difference]: Without dead ends: 1635 [2022-03-17 23:44:08,203 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 23:44:08,203 INFO L912 BasicCegarLoop]: 385 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:08,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 579 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 436 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:44:08,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-03-17 23:44:08,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1635. [2022-03-17 23:44:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1630 states have (on average 1.4159509202453988) internal successors, (2308), 1630 states have internal predecessors, (2308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:08,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2312 transitions. [2022-03-17 23:44:08,222 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2312 transitions. Word has length 175 [2022-03-17 23:44:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:08,222 INFO L478 AbstractCegarLoop]: Abstraction has 1635 states and 2312 transitions. [2022-03-17 23:44:08,222 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2312 transitions. [2022-03-17 23:44:08,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 23:44:08,224 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:08,224 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, 1, 1, 1, 1] [2022-03-17 23:44:08,224 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:44:08,224 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:08,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash -340760717, now seen corresponding path program 1 times [2022-03-17 23:44:08,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:08,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297118314] [2022-03-17 23:44:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:08,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 23:44:08,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:08,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297118314] [2022-03-17 23:44:08,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297118314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:08,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:08,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:08,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970339070] [2022-03-17 23:44:08,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:08,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:08,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:08,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:08,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:08,316 INFO L87 Difference]: Start difference. First operand 1635 states and 2312 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:10,387 INFO L93 Difference]: Finished difference Result 3747 states and 5316 transitions. [2022-03-17 23:44:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:10,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 23:44:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:10,392 INFO L225 Difference]: With dead ends: 3747 [2022-03-17 23:44:10,392 INFO L226 Difference]: Without dead ends: 2138 [2022-03-17 23:44:10,393 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 23:44:10,394 INFO L912 BasicCegarLoop]: 265 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:10,394 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 459 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 23:44:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2022-03-17 23:44:10,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2138. [2022-03-17 23:44:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 2133 states have (on average 1.4153774027191748) internal successors, (3019), 2133 states have internal predecessors, (3019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:10,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3023 transitions. [2022-03-17 23:44:10,418 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3023 transitions. Word has length 176 [2022-03-17 23:44:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:10,418 INFO L478 AbstractCegarLoop]: Abstraction has 2138 states and 3023 transitions. [2022-03-17 23:44:10,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:10,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3023 transitions. [2022-03-17 23:44:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 23:44:10,421 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:10,421 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, 1, 1, 1, 1] [2022-03-17 23:44:10,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:44:10,421 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:10,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:10,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2144302994, now seen corresponding path program 1 times [2022-03-17 23:44:10,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:10,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697951884] [2022-03-17 23:44:10,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:10,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-17 23:44:10,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:10,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697951884] [2022-03-17 23:44:10,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697951884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:10,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:10,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:10,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781143319] [2022-03-17 23:44:10,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:10,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:10,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:10,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:10,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:10,526 INFO L87 Difference]: Start difference. First operand 2138 states and 3023 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:13,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:14,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:14,193 INFO L93 Difference]: Finished difference Result 4277 states and 6053 transitions. [2022-03-17 23:44:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 23:44:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:14,203 INFO L225 Difference]: With dead ends: 4277 [2022-03-17 23:44:14,203 INFO L226 Difference]: Without dead ends: 2165 [2022-03-17 23:44:14,205 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 23:44:14,205 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:14,205 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 425 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 23:44:14,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2022-03-17 23:44:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2165. [2022-03-17 23:44:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 2160 states have (on average 1.413888888888889) internal successors, (3054), 2160 states have internal predecessors, (3054), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3058 transitions. [2022-03-17 23:44:14,231 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3058 transitions. Word has length 176 [2022-03-17 23:44:14,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:14,231 INFO L478 AbstractCegarLoop]: Abstraction has 2165 states and 3058 transitions. [2022-03-17 23:44:14,231 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3058 transitions. [2022-03-17 23:44:14,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-17 23:44:14,233 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:14,233 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, 1, 1, 1, 1] [2022-03-17 23:44:14,233 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:44:14,234 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:14,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash -464764367, now seen corresponding path program 1 times [2022-03-17 23:44:14,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:14,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202764580] [2022-03-17 23:44:14,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-17 23:44:14,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202764580] [2022-03-17 23:44:14,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202764580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:14,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:14,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344112681] [2022-03-17 23:44:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:14,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:14,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:14,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:14,315 INFO L87 Difference]: Start difference. First operand 2165 states and 3058 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:15,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:17,613 WARN L534 Checker$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 23:44:19,636 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 23:44:19,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:19,877 INFO L93 Difference]: Finished difference Result 4306 states and 6089 transitions. [2022-03-17 23:44:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:19,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-17 23:44:19,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:19,881 INFO L225 Difference]: With dead ends: 4306 [2022-03-17 23:44:19,881 INFO L226 Difference]: Without dead ends: 2167 [2022-03-17 23:44:19,883 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 23:44:19,883 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:19,883 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 404 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:44:19,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-03-17 23:44:19,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2167. [2022-03-17 23:44:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2167 states, 2162 states have (on average 1.4135060129509713) internal successors, (3056), 2162 states have internal predecessors, (3056), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:19,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2167 states to 2167 states and 3060 transitions. [2022-03-17 23:44:19,908 INFO L78 Accepts]: Start accepts. Automaton has 2167 states and 3060 transitions. Word has length 176 [2022-03-17 23:44:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:19,908 INFO L478 AbstractCegarLoop]: Abstraction has 2167 states and 3060 transitions. [2022-03-17 23:44:19,908 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:19,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2167 states and 3060 transitions. [2022-03-17 23:44:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-03-17 23:44:19,911 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:19,911 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, 1, 1] [2022-03-17 23:44:19,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:44:19,911 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1590377407, now seen corresponding path program 1 times [2022-03-17 23:44:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:19,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805549266] [2022-03-17 23:44:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:19,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:20,037 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 23:44:20,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:20,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805549266] [2022-03-17 23:44:20,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805549266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:20,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:20,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:44:20,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359371673] [2022-03-17 23:44:20,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:20,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:44:20,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:20,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:44:20,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:44:20,039 INFO L87 Difference]: Start difference. First operand 2167 states and 3060 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:21,271 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 23:44:23,292 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 23:44:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:25,379 INFO L93 Difference]: Finished difference Result 4555 states and 6419 transitions. [2022-03-17 23:44:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:44:25,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 279 [2022-03-17 23:44:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:25,382 INFO L225 Difference]: With dead ends: 4555 [2022-03-17 23:44:25,382 INFO L226 Difference]: Without dead ends: 2416 [2022-03-17 23:44:25,384 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 23:44:25,385 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 42 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:25,385 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 625 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:44:25,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-03-17 23:44:25,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2307. [2022-03-17 23:44:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2302 states have (on average 1.4109470026064292) internal successors, (3248), 2302 states have internal predecessors, (3248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3252 transitions. [2022-03-17 23:44:25,413 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3252 transitions. Word has length 279 [2022-03-17 23:44:25,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:25,413 INFO L478 AbstractCegarLoop]: Abstraction has 2307 states and 3252 transitions. [2022-03-17 23:44:25,413 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 23:44:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3252 transitions. [2022-03-17 23:44:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-03-17 23:44:25,416 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:25,416 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, 1, 1] [2022-03-17 23:44:25,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:44:25,417 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:25,419 INFO L85 PathProgramCache]: Analyzing trace with hash -849681903, now seen corresponding path program 1 times [2022-03-17 23:44:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:25,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611962312] [2022-03-17 23:44:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:25,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:25,560 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 23:44:25,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:25,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611962312] [2022-03-17 23:44:25,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611962312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:25,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:25,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:44:25,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440881241] [2022-03-17 23:44:25,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:25,561 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:44:25,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:25,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:44:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:44:25,562 INFO L87 Difference]: Start difference. First operand 2307 states and 3252 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:26,636 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 23:44:28,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:30,230 WARN L534 Checker$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 23:44:32,255 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 23:44:32,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:32,660 INFO L93 Difference]: Finished difference Result 4687 states and 6599 transitions. [2022-03-17 23:44:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:44:32,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 280 [2022-03-17 23:44:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:32,664 INFO L225 Difference]: With dead ends: 4687 [2022-03-17 23:44:32,664 INFO L226 Difference]: Without dead ends: 2408 [2022-03-17 23:44:32,666 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 23:44:32,666 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 39 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:32,667 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 621 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 512 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-17 23:44:32,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-03-17 23:44:32,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2311. [2022-03-17 23:44:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 2306 states have (on average 1.4102341717259324) internal successors, (3252), 2306 states have internal predecessors, (3252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3256 transitions. [2022-03-17 23:44:32,695 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3256 transitions. Word has length 280 [2022-03-17 23:44:32,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:32,695 INFO L478 AbstractCegarLoop]: Abstraction has 2311 states and 3256 transitions. [2022-03-17 23:44:32,695 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 23:44:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3256 transitions. [2022-03-17 23:44:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-17 23:44:32,698 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:32,698 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, 1, 1, 1, 1] [2022-03-17 23:44:32,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 23:44:32,698 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:32,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:32,698 INFO L85 PathProgramCache]: Analyzing trace with hash 533126362, now seen corresponding path program 1 times [2022-03-17 23:44:32,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:32,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837011568] [2022-03-17 23:44:32,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:32,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:32,844 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 23:44:32,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:32,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837011568] [2022-03-17 23:44:32,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837011568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:32,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:32,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:44:32,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195965546] [2022-03-17 23:44:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:32,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:44:32,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:32,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:44:32,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:44:32,846 INFO L87 Difference]: Start difference. First operand 2311 states and 3256 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:34,505 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 23:44:38,198 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 23:44:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:38,605 INFO L93 Difference]: Finished difference Result 4691 states and 6599 transitions. [2022-03-17 23:44:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:44:38,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-03-17 23:44:38,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:38,608 INFO L225 Difference]: With dead ends: 4691 [2022-03-17 23:44:38,608 INFO L226 Difference]: Without dead ends: 2408 [2022-03-17 23:44:38,611 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 23:44:38,611 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 33 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:38,611 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 619 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:44:38,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2022-03-17 23:44:38,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2331. [2022-03-17 23:44:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2326 states have (on average 1.4067067927773) internal successors, (3272), 2326 states have internal predecessors, (3272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3276 transitions. [2022-03-17 23:44:38,656 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3276 transitions. Word has length 299 [2022-03-17 23:44:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:38,656 INFO L478 AbstractCegarLoop]: Abstraction has 2331 states and 3276 transitions. [2022-03-17 23:44:38,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3276 transitions. [2022-03-17 23:44:38,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-17 23:44:38,660 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:38,660 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, 1, 1, 1, 1] [2022-03-17 23:44:38,660 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 23:44:38,660 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 240740537, now seen corresponding path program 1 times [2022-03-17 23:44:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:38,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164502294] [2022-03-17 23:44:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-03-17 23:44:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:38,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164502294] [2022-03-17 23:44:38,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164502294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:38,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:38,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:38,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848642041] [2022-03-17 23:44:38,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:38,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:38,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:38,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:38,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:38,791 INFO L87 Difference]: Start difference. First operand 2331 states and 3276 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:40,311 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 23:44:41,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:42,732 WARN L534 Checker$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 23:44:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:43,157 INFO L93 Difference]: Finished difference Result 5220 states and 7355 transitions. [2022-03-17 23:44:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-03-17 23:44:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:43,161 INFO L225 Difference]: With dead ends: 5220 [2022-03-17 23:44:43,161 INFO L226 Difference]: Without dead ends: 2917 [2022-03-17 23:44:43,163 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 23:44:43,163 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:43,163 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:44:43,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-03-17 23:44:43,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2917. [2022-03-17 23:44:43,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2912 states have (on average 1.40625) internal successors, (4095), 2912 states have internal predecessors, (4095), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4099 transitions. [2022-03-17 23:44:43,195 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4099 transitions. Word has length 299 [2022-03-17 23:44:43,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:43,195 INFO L478 AbstractCegarLoop]: Abstraction has 2917 states and 4099 transitions. [2022-03-17 23:44:43,195 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4099 transitions. [2022-03-17 23:44:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-03-17 23:44:43,198 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:43,198 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, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:44:43,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 23:44:43,199 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:43,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash 643593417, now seen corresponding path program 1 times [2022-03-17 23:44:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:43,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795423878] [2022-03-17 23:44:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:43,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-03-17 23:44:43,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:43,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795423878] [2022-03-17 23:44:43,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795423878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:43,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:43,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:44:43,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520961597] [2022-03-17 23:44:43,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:43,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:44:43,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:43,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:44:43,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:44:43,354 INFO L87 Difference]: Start difference. First operand 2917 states and 4099 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:46,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:48,042 WARN L534 Checker$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 23:44:49,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:49,077 INFO L93 Difference]: Finished difference Result 5892 states and 8269 transitions. [2022-03-17 23:44:49,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:44:49,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 300 [2022-03-17 23:44:49,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:49,082 INFO L225 Difference]: With dead ends: 5892 [2022-03-17 23:44:49,082 INFO L226 Difference]: Without dead ends: 3003 [2022-03-17 23:44:49,085 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 23:44:49,086 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 46 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:49,086 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 617 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:44:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2022-03-17 23:44:49,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 2917. [2022-03-17 23:44:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2912 states have (on average 1.404532967032967) internal successors, (4090), 2912 states have internal predecessors, (4090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:49,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4094 transitions. [2022-03-17 23:44:49,146 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4094 transitions. Word has length 300 [2022-03-17 23:44:49,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:49,146 INFO L478 AbstractCegarLoop]: Abstraction has 2917 states and 4094 transitions. [2022-03-17 23:44:49,146 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 23:44:49,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4094 transitions. [2022-03-17 23:44:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-03-17 23:44:49,149 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:49,149 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, 1, 1, 1, 1, 1] [2022-03-17 23:44:49,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 23:44:49,150 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:49,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash -797458658, now seen corresponding path program 1 times [2022-03-17 23:44:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:49,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514541130] [2022-03-17 23:44:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:49,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-03-17 23:44:49,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:49,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514541130] [2022-03-17 23:44:49,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514541130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:49,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:49,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:49,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25698019] [2022-03-17 23:44:49,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:49,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:49,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:49,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:49,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:49,268 INFO L87 Difference]: Start difference. First operand 2917 states and 4094 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:51,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:53,154 WARN L534 Checker$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 23:44:53,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:53,607 INFO L93 Difference]: Finished difference Result 6360 states and 8945 transitions. [2022-03-17 23:44:53,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:53,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 300 [2022-03-17 23:44:53,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:53,622 INFO L225 Difference]: With dead ends: 6360 [2022-03-17 23:44:53,622 INFO L226 Difference]: Without dead ends: 3471 [2022-03-17 23:44:53,625 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 23:44:53,626 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:53,626 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:44:53,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3471 states. [2022-03-17 23:44:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3471 to 3471. [2022-03-17 23:44:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3466 states have (on average 1.4042123485285631) internal successors, (4867), 3466 states have internal predecessors, (4867), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 4871 transitions. [2022-03-17 23:44:53,676 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 4871 transitions. Word has length 300 [2022-03-17 23:44:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:53,676 INFO L478 AbstractCegarLoop]: Abstraction has 3471 states and 4871 transitions. [2022-03-17 23:44:53,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 4871 transitions. [2022-03-17 23:44:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-03-17 23:44:53,702 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:53,702 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, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:44:53,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 23:44:53,702 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1486767437, now seen corresponding path program 1 times [2022-03-17 23:44:53,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:53,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843124429] [2022-03-17 23:44:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:53,822 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 23:44:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:53,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843124429] [2022-03-17 23:44:53,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843124429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:53,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:53,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640721797] [2022-03-17 23:44:53,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:53,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:53,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:53,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:53,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:53,824 INFO L87 Difference]: Start difference. First operand 3471 states and 4871 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:55,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:44:57,240 INFO L93 Difference]: Finished difference Result 7459 states and 10487 transitions. [2022-03-17 23:44:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:44:57,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-03-17 23:44:57,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:44:57,245 INFO L225 Difference]: With dead ends: 7459 [2022-03-17 23:44:57,245 INFO L226 Difference]: Without dead ends: 4016 [2022-03-17 23:44:57,249 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 23:44:57,249 INFO L912 BasicCegarLoop]: 388 mSDtfsCounter, 142 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:44:57,249 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 582 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:44:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-03-17 23:44:57,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 4016. [2022-03-17 23:44:57,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4016 states, 4011 states have (on average 1.4041386187983047) internal successors, (5632), 4011 states have internal predecessors, (5632), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:57,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4016 states to 4016 states and 5636 transitions. [2022-03-17 23:44:57,297 INFO L78 Accepts]: Start accepts. Automaton has 4016 states and 5636 transitions. Word has length 301 [2022-03-17 23:44:57,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:44:57,297 INFO L478 AbstractCegarLoop]: Abstraction has 4016 states and 5636 transitions. [2022-03-17 23:44:57,297 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:57,297 INFO L276 IsEmpty]: Start isEmpty. Operand 4016 states and 5636 transitions. [2022-03-17 23:44:57,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-03-17 23:44:57,313 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:44:57,313 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:44:57,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 23:44:57,313 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:44:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:44:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash 323931843, now seen corresponding path program 1 times [2022-03-17 23:44:57,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:44:57,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716761025] [2022-03-17 23:44:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:44:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:44:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:44:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:44:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-03-17 23:44:57,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:44:57,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716761025] [2022-03-17 23:44:57,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716761025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:44:57,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:44:57,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:44:57,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64644025] [2022-03-17 23:44:57,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:44:57,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:44:57,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:44:57,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:44:57,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:44:57,519 INFO L87 Difference]: Start difference. First operand 4016 states and 5636 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:44:59,488 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 23:45:01,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:03,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:03,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:03,999 INFO L93 Difference]: Finished difference Result 8591 states and 12076 transitions. [2022-03-17 23:45:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:45:04,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 427 [2022-03-17 23:45:04,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:04,004 INFO L225 Difference]: With dead ends: 8591 [2022-03-17 23:45:04,004 INFO L226 Difference]: Without dead ends: 4603 [2022-03-17 23:45:04,007 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 23:45:04,007 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:04,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:45:04,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2022-03-17 23:45:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4603. [2022-03-17 23:45:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4598 states have (on average 1.403871248368856) internal successors, (6455), 4598 states have internal predecessors, (6455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 6459 transitions. [2022-03-17 23:45:04,080 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 6459 transitions. Word has length 427 [2022-03-17 23:45:04,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:04,080 INFO L478 AbstractCegarLoop]: Abstraction has 4603 states and 6459 transitions. [2022-03-17 23:45:04,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 6459 transitions. [2022-03-17 23:45:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-17 23:45:04,086 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:04,086 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:04,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 23:45:04,086 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash 926909104, now seen corresponding path program 1 times [2022-03-17 23:45:04,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:04,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676665833] [2022-03-17 23:45:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:04,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 816 proven. 0 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2022-03-17 23:45:04,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:04,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676665833] [2022-03-17 23:45:04,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676665833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:04,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:04,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:45:04,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445578105] [2022-03-17 23:45:04,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:04,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:45:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:04,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:45:04,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:45:04,412 INFO L87 Difference]: Start difference. First operand 4603 states and 6459 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:05,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:07,441 WARN L534 Checker$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 23:45:09,468 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 23:45:09,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:09,780 INFO L93 Difference]: Finished difference Result 9770 states and 13729 transitions. [2022-03-17 23:45:09,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:45:09,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-03-17 23:45:09,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:09,786 INFO L225 Difference]: With dead ends: 9770 [2022-03-17 23:45:09,786 INFO L226 Difference]: Without dead ends: 5195 [2022-03-17 23:45:09,791 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 23:45:09,792 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 147 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:09,792 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 382 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 264 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:45:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2022-03-17 23:45:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 5195. [2022-03-17 23:45:09,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5190 states have (on average 1.4052023121387283) internal successors, (7293), 5190 states have internal predecessors, (7293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:09,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 7297 transitions. [2022-03-17 23:45:09,881 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 7297 transitions. Word has length 428 [2022-03-17 23:45:09,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:09,881 INFO L478 AbstractCegarLoop]: Abstraction has 5195 states and 7297 transitions. [2022-03-17 23:45:09,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:09,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 7297 transitions. [2022-03-17 23:45:09,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-17 23:45:09,888 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:09,889 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:09,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 23:45:09,889 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:09,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:09,889 INFO L85 PathProgramCache]: Analyzing trace with hash -71724402, now seen corresponding path program 1 times [2022-03-17 23:45:09,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:09,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168061152] [2022-03-17 23:45:09,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:09,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:10,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-03-17 23:45:10,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:10,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168061152] [2022-03-17 23:45:10,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168061152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:10,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:10,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:45:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540150354] [2022-03-17 23:45:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:10,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:45:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:45:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:45:10,062 INFO L87 Difference]: Start difference. First operand 5195 states and 7297 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:11,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:11,759 INFO L93 Difference]: Finished difference Result 10917 states and 15353 transitions. [2022-03-17 23:45:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:45:11,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 428 [2022-03-17 23:45:11,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:11,765 INFO L225 Difference]: With dead ends: 10917 [2022-03-17 23:45:11,765 INFO L226 Difference]: Without dead ends: 5750 [2022-03-17 23:45:11,770 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 23:45:11,770 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:11,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-17 23:45:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5750 states. [2022-03-17 23:45:11,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5750 to 5750. [2022-03-17 23:45:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5750 states, 5745 states have (on average 1.4048738033072237) internal successors, (8071), 5745 states have internal predecessors, (8071), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5750 states to 5750 states and 8075 transitions. [2022-03-17 23:45:11,891 INFO L78 Accepts]: Start accepts. Automaton has 5750 states and 8075 transitions. Word has length 428 [2022-03-17 23:45:11,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:11,902 INFO L478 AbstractCegarLoop]: Abstraction has 5750 states and 8075 transitions. [2022-03-17 23:45:11,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5750 states and 8075 transitions. [2022-03-17 23:45:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-03-17 23:45:11,919 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:11,920 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:11,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 23:45:11,920 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -205779879, now seen corresponding path program 1 times [2022-03-17 23:45:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:11,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239607041] [2022-03-17 23:45:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:11,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:12,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:12,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 1059 proven. 0 refuted. 0 times theorem prover too weak. 1829 trivial. 0 not checked. [2022-03-17 23:45:12,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:12,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239607041] [2022-03-17 23:45:12,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239607041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:12,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:12,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:45:12,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878559907] [2022-03-17 23:45:12,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:12,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:45:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:45:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:45:12,156 INFO L87 Difference]: Start difference. First operand 5750 states and 8075 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:13,344 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 23:45:14,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:16,691 WARN L534 Checker$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 23:45:18,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:18,805 INFO L93 Difference]: Finished difference Result 11863 states and 16663 transitions. [2022-03-17 23:45:18,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:45:18,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 557 [2022-03-17 23:45:18,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:18,811 INFO L225 Difference]: With dead ends: 11863 [2022-03-17 23:45:18,811 INFO L226 Difference]: Without dead ends: 6141 [2022-03-17 23:45:18,815 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 23:45:18,815 INFO L912 BasicCegarLoop]: 240 mSDtfsCounter, 27 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:18,815 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 602 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 440 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:45:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6141 states. [2022-03-17 23:45:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6141 to 6010. [2022-03-17 23:45:18,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6005 states have (on average 1.405661948376353) internal successors, (8441), 6005 states have internal predecessors, (8441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 8445 transitions. [2022-03-17 23:45:18,887 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 8445 transitions. Word has length 557 [2022-03-17 23:45:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:18,887 INFO L478 AbstractCegarLoop]: Abstraction has 6010 states and 8445 transitions. [2022-03-17 23:45:18,888 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 23:45:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 8445 transitions. [2022-03-17 23:45:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-03-17 23:45:18,913 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:18,913 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:18,913 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 23:45:18,913 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:18,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:18,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1694333736, now seen corresponding path program 1 times [2022-03-17 23:45:18,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:18,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125637151] [2022-03-17 23:45:18,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:18,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:19,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:19,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-03-17 23:45:19,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:19,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125637151] [2022-03-17 23:45:19,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125637151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:19,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:19,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:45:19,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471186681] [2022-03-17 23:45:19,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:19,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:45:19,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:19,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:45:19,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:45:19,168 INFO L87 Difference]: Start difference. First operand 6010 states and 8445 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:22,167 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 23:45:24,194 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 23:45:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:24,676 INFO L93 Difference]: Finished difference Result 12574 states and 17688 transitions. [2022-03-17 23:45:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:45:24,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-03-17 23:45:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:24,683 INFO L225 Difference]: With dead ends: 12574 [2022-03-17 23:45:24,683 INFO L226 Difference]: Without dead ends: 6592 [2022-03-17 23:45:24,688 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 23:45:24,688 INFO L912 BasicCegarLoop]: 390 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:24,688 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 584 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:45:24,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2022-03-17 23:45:24,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 6592. [2022-03-17 23:45:24,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6587 states have (on average 1.4053438591164416) internal successors, (9257), 6587 states have internal predecessors, (9257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 9261 transitions. [2022-03-17 23:45:24,783 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 9261 transitions. Word has length 558 [2022-03-17 23:45:24,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:24,783 INFO L478 AbstractCegarLoop]: Abstraction has 6592 states and 9261 transitions. [2022-03-17 23:45:24,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:24,783 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 9261 transitions. [2022-03-17 23:45:24,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-03-17 23:45:24,791 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:24,791 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:24,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 23:45:24,791 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:24,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:24,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1575939639, now seen corresponding path program 1 times [2022-03-17 23:45:24,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:24,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267834477] [2022-03-17 23:45:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:24,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:25,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1403 proven. 421 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2022-03-17 23:45:25,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:25,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267834477] [2022-03-17 23:45:25,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267834477] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:45:25,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166871232] [2022-03-17 23:45:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:25,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:45:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:45:25,592 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 23:45:25,593 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 23:45:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:26,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 41 conjunts are in the unsatisfiable core [2022-03-17 23:45:26,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:45:26,884 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:45:26,884 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 23:45:26,998 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:45:26,998 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 23:45:27,201 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:45:27,201 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 23:45:27,429 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 23:45:27,468 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 23:45:27,472 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 23:45:27,508 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-17 23:45:27,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-03-17 23:45:27,601 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:45:27,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-03-17 23:45:27,795 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:45:27,795 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 23:45:27,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1394 proven. 204 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2022-03-17 23:45:27,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:45:28,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-17 23:45:28,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-17 23:45:34,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 172 [2022-03-17 23:45:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2752 backedges. 1392 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2022-03-17 23:45:34,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166871232] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:45:34,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:45:34,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20, 14] total 34 [2022-03-17 23:45:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733788716] [2022-03-17 23:45:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:34,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:45:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:34,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:45:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=994, Unknown=2, NotChecked=0, Total=1122 [2022-03-17 23:45:34,686 INFO L87 Difference]: Start difference. First operand 6592 states and 9261 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:36,692 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 23:45:38,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:50,859 INFO L93 Difference]: Finished difference Result 16087 states and 22595 transitions. [2022-03-17 23:45:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:45:50,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 558 [2022-03-17 23:45:50,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:50,867 INFO L225 Difference]: With dead ends: 16087 [2022-03-17 23:45:50,867 INFO L226 Difference]: Without dead ends: 9523 [2022-03-17 23:45:50,874 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=164, Invalid=1236, Unknown=6, NotChecked=0, Total=1406 [2022-03-17 23:45:50,875 INFO L912 BasicCegarLoop]: 240 mSDtfsCounter, 278 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 88 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:50,875 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1020 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 607 Invalid, 2 Unknown, 260 Unchecked, 4.6s Time] [2022-03-17 23:45:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-03-17 23:45:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 8405. [2022-03-17 23:45:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8405 states, 8400 states have (on average 1.4138095238095238) internal successors, (11876), 8400 states have internal predecessors, (11876), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8405 states to 8405 states and 11880 transitions. [2022-03-17 23:45:51,021 INFO L78 Accepts]: Start accepts. Automaton has 8405 states and 11880 transitions. Word has length 558 [2022-03-17 23:45:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:51,022 INFO L478 AbstractCegarLoop]: Abstraction has 8405 states and 11880 transitions. [2022-03-17 23:45:51,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8405 states and 11880 transitions. [2022-03-17 23:45:51,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-03-17 23:45:51,030 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:51,030 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:51,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 23:45:51,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:45:51,233 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1432119467, now seen corresponding path program 1 times [2022-03-17 23:45:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:51,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460679355] [2022-03-17 23:45:51,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:51,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 1235 trivial. 0 not checked. [2022-03-17 23:45:51,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:51,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460679355] [2022-03-17 23:45:51,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460679355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:51,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:51,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:45:51,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332935457] [2022-03-17 23:45:51,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:51,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:45:51,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:51,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:45:51,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:45:51,496 INFO L87 Difference]: Start difference. First operand 8405 states and 11880 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:52,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:54,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:45:56,760 WARN L534 Checker$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 23:45:58,784 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 23:45:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:45:59,306 INFO L93 Difference]: Finished difference Result 17020 states and 24019 transitions. [2022-03-17 23:45:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:45:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 561 [2022-03-17 23:45:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:45:59,314 INFO L225 Difference]: With dead ends: 17020 [2022-03-17 23:45:59,314 INFO L226 Difference]: Without dead ends: 8555 [2022-03-17 23:45:59,321 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 23:45:59,322 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 30 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:45:59,322 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 615 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:45:59,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8555 states. [2022-03-17 23:45:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8555 to 8328. [2022-03-17 23:45:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8323 states have (on average 1.4158356361888742) internal successors, (11784), 8323 states have internal predecessors, (11784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 11788 transitions. [2022-03-17 23:45:59,473 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 11788 transitions. Word has length 561 [2022-03-17 23:45:59,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:45:59,474 INFO L478 AbstractCegarLoop]: Abstraction has 8328 states and 11788 transitions. [2022-03-17 23:45:59,474 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 4 states have internal predecessors, (183), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:45:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 11788 transitions. [2022-03-17 23:45:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-03-17 23:45:59,482 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:45:59,482 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:45:59,482 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 23:45:59,483 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:45:59,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:45:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1730828264, now seen corresponding path program 1 times [2022-03-17 23:45:59,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:45:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000935033] [2022-03-17 23:45:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:45:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:45:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:45:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:45:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3526 backedges. 1674 proven. 0 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2022-03-17 23:45:59,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:45:59,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000935033] [2022-03-17 23:45:59,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000935033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:45:59,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:45:59,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:45:59,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31144728] [2022-03-17 23:45:59,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:45:59,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:45:59,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:45:59,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:45:59,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:45:59,671 INFO L87 Difference]: Start difference. First operand 8328 states and 11788 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:01,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:03,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:05,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:07,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:07,831 INFO L93 Difference]: Finished difference Result 16855 states and 23824 transitions. [2022-03-17 23:46:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:07,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 610 [2022-03-17 23:46:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:07,840 INFO L225 Difference]: With dead ends: 16855 [2022-03-17 23:46:07,840 INFO L226 Difference]: Without dead ends: 8555 [2022-03-17 23:46:07,847 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 23:46:07,847 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 40 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:07,847 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 613 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-03-17 23:46:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8555 states. [2022-03-17 23:46:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8555 to 8328. [2022-03-17 23:46:07,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8323 states have (on average 1.414033401417758) internal successors, (11769), 8323 states have internal predecessors, (11769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 11773 transitions. [2022-03-17 23:46:07,981 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 11773 transitions. Word has length 610 [2022-03-17 23:46:07,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:07,981 INFO L478 AbstractCegarLoop]: Abstraction has 8328 states and 11773 transitions. [2022-03-17 23:46:07,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 11773 transitions. [2022-03-17 23:46:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-03-17 23:46:07,992 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:07,992 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:07,992 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 23:46:07,993 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:07,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:07,993 INFO L85 PathProgramCache]: Analyzing trace with hash 565846642, now seen corresponding path program 1 times [2022-03-17 23:46:07,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:07,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694844517] [2022-03-17 23:46:07,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:07,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3553 backedges. 1691 proven. 0 refuted. 0 times theorem prover too weak. 1862 trivial. 0 not checked. [2022-03-17 23:46:08,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:08,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694844517] [2022-03-17 23:46:08,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694844517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:08,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:08,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:08,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027703378] [2022-03-17 23:46:08,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:08,197 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:08,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:08,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:08,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:08,199 INFO L87 Difference]: Start difference. First operand 8328 states and 11773 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:09,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:11,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:13,191 WARN L534 Checker$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 23:46:14,238 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 23:46:14,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:14,680 INFO L93 Difference]: Finished difference Result 16795 states and 23715 transitions. [2022-03-17 23:46:14,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:14,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 612 [2022-03-17 23:46:14,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:14,688 INFO L225 Difference]: With dead ends: 16795 [2022-03-17 23:46:14,688 INFO L226 Difference]: Without dead ends: 8495 [2022-03-17 23:46:14,695 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 23:46:14,695 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 34 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:14,695 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 455 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:46:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8495 states. [2022-03-17 23:46:14,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8495 to 8328. [2022-03-17 23:46:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8323 states have (on average 1.4122311666466418) internal successors, (11754), 8323 states have internal predecessors, (11754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 11758 transitions. [2022-03-17 23:46:14,835 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 11758 transitions. Word has length 612 [2022-03-17 23:46:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:14,836 INFO L478 AbstractCegarLoop]: Abstraction has 8328 states and 11758 transitions. [2022-03-17 23:46:14,836 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 11758 transitions. [2022-03-17 23:46:14,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-03-17 23:46:14,845 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:14,845 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:14,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-17 23:46:14,845 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:14,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:14,845 INFO L85 PathProgramCache]: Analyzing trace with hash -546319260, now seen corresponding path program 1 times [2022-03-17 23:46:14,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:14,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489671601] [2022-03-17 23:46:14,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:14,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 1551 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2022-03-17 23:46:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:15,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489671601] [2022-03-17 23:46:15,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489671601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:15,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:15,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:15,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064238848] [2022-03-17 23:46:15,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:15,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:15,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:15,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:15,059 INFO L87 Difference]: Start difference. First operand 8328 states and 11758 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:17,698 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 23:46:19,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:20,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:21,330 INFO L93 Difference]: Finished difference Result 16735 states and 23610 transitions. [2022-03-17 23:46:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:21,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 624 [2022-03-17 23:46:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:21,338 INFO L225 Difference]: With dead ends: 16735 [2022-03-17 23:46:21,338 INFO L226 Difference]: Without dead ends: 8300 [2022-03-17 23:46:21,345 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 23:46:21,345 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:21,345 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 597 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 23:46:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8300 states. [2022-03-17 23:46:21,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8300 to 8193. [2022-03-17 23:46:21,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8193 states, 8188 states have (on average 1.4171958964338056) internal successors, (11604), 8188 states have internal predecessors, (11604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8193 states to 8193 states and 11608 transitions. [2022-03-17 23:46:21,459 INFO L78 Accepts]: Start accepts. Automaton has 8193 states and 11608 transitions. Word has length 624 [2022-03-17 23:46:21,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:21,459 INFO L478 AbstractCegarLoop]: Abstraction has 8193 states and 11608 transitions. [2022-03-17 23:46:21,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:21,459 INFO L276 IsEmpty]: Start isEmpty. Operand 8193 states and 11608 transitions. [2022-03-17 23:46:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-03-17 23:46:21,468 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:21,468 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 14, 14, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:21,468 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-17 23:46:21,468 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:21,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:21,469 INFO L85 PathProgramCache]: Analyzing trace with hash 460564013, now seen corresponding path program 1 times [2022-03-17 23:46:21,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:21,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603020555] [2022-03-17 23:46:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:21,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:21,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3872 backedges. 1596 proven. 0 refuted. 0 times theorem prover too weak. 2276 trivial. 0 not checked. [2022-03-17 23:46:21,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:21,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603020555] [2022-03-17 23:46:21,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603020555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:21,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:21,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:46:21,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451994169] [2022-03-17 23:46:21,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:21,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:46:21,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:21,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:46:21,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:46:21,720 INFO L87 Difference]: Start difference. First operand 8193 states and 11608 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:22,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:24,875 WARN L534 Checker$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 23:46:26,901 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 23:46:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:27,336 INFO L93 Difference]: Finished difference Result 16405 states and 23235 transitions. [2022-03-17 23:46:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:46:27,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 636 [2022-03-17 23:46:27,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:27,343 INFO L225 Difference]: With dead ends: 16405 [2022-03-17 23:46:27,343 INFO L226 Difference]: Without dead ends: 8180 [2022-03-17 23:46:27,347 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 23:46:27,347 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 15 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:27,347 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 589 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:46:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2022-03-17 23:46:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8133. [2022-03-17 23:46:27,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8133 states, 8128 states have (on average 1.4184301181102361) internal successors, (11529), 8128 states have internal predecessors, (11529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:27,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8133 states to 8133 states and 11533 transitions. [2022-03-17 23:46:27,460 INFO L78 Accepts]: Start accepts. Automaton has 8133 states and 11533 transitions. Word has length 636 [2022-03-17 23:46:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:27,460 INFO L478 AbstractCegarLoop]: Abstraction has 8133 states and 11533 transitions. [2022-03-17 23:46:27,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 8133 states and 11533 transitions. [2022-03-17 23:46:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-17 23:46:27,469 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:27,469 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:27,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 23:46:27,469 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:27,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:27,470 INFO L85 PathProgramCache]: Analyzing trace with hash 269092640, now seen corresponding path program 1 times [2022-03-17 23:46:27,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:27,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315813307] [2022-03-17 23:46:27,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:27,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1991 proven. 0 refuted. 0 times theorem prover too weak. 1904 trivial. 0 not checked. [2022-03-17 23:46:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315813307] [2022-03-17 23:46:27,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315813307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:46:27,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:46:27,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:46:27,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881189780] [2022-03-17 23:46:27,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:46:27,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:46:27,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:46:27,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:46:27,806 INFO L87 Difference]: Start difference. First operand 8133 states and 11533 transitions. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 5 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:29,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:31,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:33,433 WARN L534 Checker$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 23:46:35,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:37,322 WARN L534 Checker$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 23:46:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:38,450 INFO L93 Difference]: Finished difference Result 19521 states and 27702 transitions. [2022-03-17 23:46:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 23:46:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 5 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-17 23:46:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:38,462 INFO L225 Difference]: With dead ends: 19521 [2022-03-17 23:46:38,462 INFO L226 Difference]: Without dead ends: 11416 [2022-03-17 23:46:38,466 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:46:38,466 INFO L912 BasicCegarLoop]: 308 mSDtfsCounter, 112 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 32 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:38,467 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 955 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 878 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-03-17 23:46:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-03-17 23:46:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 9415. [2022-03-17 23:46:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9415 states, 9410 states have (on average 1.4210414452709883) internal successors, (13372), 9410 states have internal predecessors, (13372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9415 states to 9415 states and 13376 transitions. [2022-03-17 23:46:38,626 INFO L78 Accepts]: Start accepts. Automaton has 9415 states and 13376 transitions. Word has length 645 [2022-03-17 23:46:38,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:38,626 INFO L478 AbstractCegarLoop]: Abstraction has 9415 states and 13376 transitions. [2022-03-17 23:46:38,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 5 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:38,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9415 states and 13376 transitions. [2022-03-17 23:46:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-03-17 23:46:38,637 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:38,637 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:38,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-17 23:46:38,637 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:38,638 INFO L85 PathProgramCache]: Analyzing trace with hash -360571007, now seen corresponding path program 1 times [2022-03-17 23:46:38,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:38,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072559894] [2022-03-17 23:46:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:38,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1551 proven. 687 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-03-17 23:46:40,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:40,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072559894] [2022-03-17 23:46:40,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072559894] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:46:40,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606819213] [2022-03-17 23:46:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:40,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:46:40,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:46:40,308 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 23:46:40,360 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 23:46:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:41,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 111 conjunts are in the unsatisfiable core [2022-03-17 23:46:41,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:46:41,770 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:46:41,770 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 23:46:41,871 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:46:41,871 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 23:46:41,969 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 23:46:42,302 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 23:46:42,331 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-17 23:46:42,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2022-03-17 23:46:42,339 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-17 23:46:42,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2022-03-17 23:46:42,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-03-17 23:46:42,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-03-17 23:46:42,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-03-17 23:46:42,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:42,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 57 [2022-03-17 23:46:42,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:42,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2022-03-17 23:46:42,449 INFO L356 Elim1Store]: treesize reduction 110, result has 33.7 percent of original size [2022-03-17 23:46:42,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 115 [2022-03-17 23:46:42,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:42,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 72 [2022-03-17 23:46:42,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:42,945 INFO L356 Elim1Store]: treesize reduction 100, result has 32.4 percent of original size [2022-03-17 23:46:42,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 85 [2022-03-17 23:46:42,954 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:46:42,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 106 [2022-03-17 23:46:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,792 INFO L356 Elim1Store]: treesize reduction 155, result has 11.9 percent of original size [2022-03-17 23:46:43,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 71 [2022-03-17 23:46:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 64 [2022-03-17 23:46:43,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,808 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 23:46:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,886 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-17 23:46:43,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 90 [2022-03-17 23:46:43,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 80 [2022-03-17 23:46:43,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:43,901 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 23:46:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:44,669 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:46:44,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 179 treesize of output 168 [2022-03-17 23:46:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:44,701 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:46:44,701 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 23:46:44,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:44,779 INFO L356 Elim1Store]: treesize reduction 79, result has 51.2 percent of original size [2022-03-17 23:46:44,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 55 treesize of output 115 [2022-03-17 23:46:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,703 INFO L356 Elim1Store]: treesize reduction 176, result has 26.7 percent of original size [2022-03-17 23:46:46,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 310 treesize of output 332 [2022-03-17 23:46:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:46,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 338 treesize of output 278 [2022-03-17 23:46:46,738 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-17 23:46:46,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 338 treesize of output 272 [2022-03-17 23:46:49,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 241 [2022-03-17 23:46:49,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 305 treesize of output 247 [2022-03-17 23:46:49,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,750 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-17 23:46:49,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 305 treesize of output 302 [2022-03-17 23:46:49,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 176 [2022-03-17 23:46:49,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:49,990 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 176 treesize of output 104 [2022-03-17 23:46:50,029 INFO L356 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-03-17 23:46:50,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 140 [2022-03-17 23:46:50,152 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:46:50,153 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 23:46:50,284 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:46:50,284 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 23:46:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1783 proven. 518 refuted. 0 times theorem prover too weak. 1594 trivial. 0 not checked. [2022-03-17 23:46:50,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:46:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3895 backedges. 1691 proven. 139 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-03-17 23:46:53,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606819213] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:46:53,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:46:53,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 12] total 44 [2022-03-17 23:46:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18694487] [2022-03-17 23:46:53,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:46:53,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-17 23:46:53,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:46:53,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-17 23:46:53,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1614, Unknown=0, NotChecked=0, Total=1892 [2022-03-17 23:46:53,964 INFO L87 Difference]: Start difference. First operand 9415 states and 13376 transitions. Second operand has 44 states, 44 states have (on average 13.909090909090908) internal successors, (612), 43 states have internal predecessors, (612), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:55,989 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 23:47:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:47:30,056 INFO L93 Difference]: Finished difference Result 64056 states and 88986 transitions. [2022-03-17 23:47:30,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2022-03-17 23:47:30,056 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 13.909090909090908) internal successors, (612), 43 states have internal predecessors, (612), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 645 [2022-03-17 23:47:30,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:47:30,156 INFO L225 Difference]: With dead ends: 64056 [2022-03-17 23:47:30,156 INFO L226 Difference]: Without dead ends: 54669 [2022-03-17 23:47:30,173 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1779 GetRequests, 1391 SyntacticMatches, 34 SemanticMatches, 354 ConstructedPredicates, 0 IntricatePredicates, 8 DeprecatedPredicates, 59248 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=12015, Invalid=114365, Unknown=0, NotChecked=0, Total=126380 [2022-03-17 23:47:30,173 INFO L912 BasicCegarLoop]: 1118 mSDtfsCounter, 5255 mSDsluCounter, 19969 mSDsCounter, 0 mSdLazyCounter, 17020 mSolverCounterSat, 935 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5255 SdHoareTripleChecker+Valid, 21087 SdHoareTripleChecker+Invalid, 27395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 17020 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 9439 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:47:30,173 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [5255 Valid, 21087 Invalid, 27395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [935 Valid, 17020 Invalid, 1 Unknown, 9439 Unchecked, 16.2s Time] [2022-03-17 23:47:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54669 states. [2022-03-17 23:47:30,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54669 to 26273. [2022-03-17 23:47:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26273 states, 26268 states have (on average 1.422034414496726) internal successors, (37354), 26268 states have internal predecessors, (37354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:47:30,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26273 states to 26273 states and 37358 transitions. [2022-03-17 23:47:30,935 INFO L78 Accepts]: Start accepts. Automaton has 26273 states and 37358 transitions. Word has length 645 [2022-03-17 23:47:30,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:47:30,935 INFO L478 AbstractCegarLoop]: Abstraction has 26273 states and 37358 transitions. [2022-03-17 23:47:30,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 13.909090909090908) internal successors, (612), 43 states have internal predecessors, (612), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:47:30,936 INFO L276 IsEmpty]: Start isEmpty. Operand 26273 states and 37358 transitions. [2022-03-17 23:47:30,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2022-03-17 23:47:30,956 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:47:30,956 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 9, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:47:30,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-17 23:47:31,157 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,SelfDestructingSolverStorable67 [2022-03-17 23:47:31,157 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:47:31,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:47:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash -192917773, now seen corresponding path program 1 times [2022-03-17 23:47:31,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:47:31,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453462245] [2022-03-17 23:47:31,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:47:31,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:47:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:47:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:47:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:47:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1610 proven. 286 refuted. 0 times theorem prover too weak. 2007 trivial. 0 not checked. [2022-03-17 23:47:32,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:47:32,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453462245] [2022-03-17 23:47:32,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453462245] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:47:32,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950797630] [2022-03-17 23:47:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:47:32,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:47:32,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:47:32,307 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 23:47:32,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 23:47:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:47:33,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 39 conjunts are in the unsatisfiable core [2022-03-17 23:47:33,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:47:34,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:47:34,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 23:47:34,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:47:34,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 23:47:34,029 INFO L356 Elim1Store]: treesize reduction 99, result has 17.5 percent of original size [2022-03-17 23:47:34,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 34 [2022-03-17 23:47:34,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:47:34,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 23:47:34,138 INFO L356 Elim1Store]: treesize reduction 75, result has 37.5 percent of original size [2022-03-17 23:47:34,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 60 [2022-03-17 23:47:34,151 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:47:34,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:47:34,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 48 [2022-03-17 23:47:34,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 30 [2022-03-17 23:47:34,184 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 23:47:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1908 proven. 1 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2022-03-17 23:47:34,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:47:35,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3903 backedges. 1908 proven. 1 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2022-03-17 23:47:35,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950797630] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:47:35,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:47:35,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 8] total 26 [2022-03-17 23:47:35,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674182361] [2022-03-17 23:47:35,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:47:35,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-17 23:47:35,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:47:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-17 23:47:35,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-03-17 23:47:35,088 INFO L87 Difference]: Start difference. First operand 26273 states and 37358 transitions. Second operand has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 25 states have internal predecessors, (409), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:47:37,046 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 23:47:38,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:40,997 WARN L534 Checker$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 23:47:43,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:45,048 WARN L534 Checker$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 23:47:47,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:49,800 WARN L534 Checker$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 23:47:51,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:53,862 WARN L534 Checker$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 23:47:55,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:47:57,781 WARN L534 Checker$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 23:47:59,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:48:01,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:48:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:48:17,660 INFO L93 Difference]: Finished difference Result 153680 states and 211004 transitions. [2022-03-17 23:48:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-17 23:48:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 25 states have internal predecessors, (409), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 650 [2022-03-17 23:48:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:48:17,813 INFO L225 Difference]: With dead ends: 153680 [2022-03-17 23:48:17,813 INFO L226 Difference]: Without dead ends: 127435 [2022-03-17 23:48:17,845 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1453 GetRequests, 1324 SyntacticMatches, 3 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5505 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2260, Invalid=13996, Unknown=0, NotChecked=0, Total=16256 [2022-03-17 23:48:17,845 INFO L912 BasicCegarLoop]: 652 mSDtfsCounter, 1902 mSDsluCounter, 8370 mSDsCounter, 0 mSdLazyCounter, 11745 mSolverCounterSat, 451 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 9022 SdHoareTripleChecker+Invalid, 12206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 11745 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:48:17,845 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 9022 Invalid, 12206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 11745 Invalid, 10 Unknown, 0 Unchecked, 36.0s Time] [2022-03-17 23:48:17,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127435 states. [2022-03-17 23:48:19,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127435 to 54691. [2022-03-17 23:48:19,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54691 states, 54686 states have (on average 1.4221007204769045) internal successors, (77769), 54686 states have internal predecessors, (77769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:48:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54691 states to 54691 states and 77773 transitions. [2022-03-17 23:48:20,017 INFO L78 Accepts]: Start accepts. Automaton has 54691 states and 77773 transitions. Word has length 650 [2022-03-17 23:48:20,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:48:20,018 INFO L478 AbstractCegarLoop]: Abstraction has 54691 states and 77773 transitions. [2022-03-17 23:48:20,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 15.73076923076923) internal successors, (409), 25 states have internal predecessors, (409), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:48:20,018 INFO L276 IsEmpty]: Start isEmpty. Operand 54691 states and 77773 transitions. [2022-03-17 23:48:20,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-03-17 23:48:20,068 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:48:20,068 INFO L500 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 15, 15, 14, 14, 14, 14, 10, 10, 10, 10, 10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:48:20,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 23:48:20,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:48:20,268 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:48:20,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:48:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1280149766, now seen corresponding path program 1 times [2022-03-17 23:48:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:48:20,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003496490] [2022-03-17 23:48:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:48:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:48:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:48:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:48:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:48:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4321 backedges. 1640 proven. 0 refuted. 0 times theorem prover too weak. 2681 trivial. 0 not checked. [2022-03-17 23:48:20,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:48:20,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003496490] [2022-03-17 23:48:20,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003496490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:48:20,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:48:20,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:48:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216248657] [2022-03-17 23:48:20,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:48:20,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:48:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:48:20,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:48:20,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:48:20,498 INFO L87 Difference]: Start difference. First operand 54691 states and 77773 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:48:22,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:48:24,601 WARN L534 Checker$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 23:48:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:48:26,488 INFO L93 Difference]: Finished difference Result 116064 states and 165185 transitions. [2022-03-17 23:48:26,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:48:26,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 665 [2022-03-17 23:48:26,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:48:26,564 INFO L225 Difference]: With dead ends: 116064 [2022-03-17 23:48:26,564 INFO L226 Difference]: Without dead ends: 61401 [2022-03-17 23:48:26,606 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 23:48:26,606 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 134 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:48:26,606 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 379 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 265 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:48:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61401 states. [2022-03-17 23:48:28,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61401 to 61401. [2022-03-17 23:48:28,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61401 states, 61396 states have (on average 1.4237898234412665) internal successors, (87415), 61396 states have internal predecessors, (87415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:48:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61401 states to 61401 states and 87419 transitions. [2022-03-17 23:48:28,711 INFO L78 Accepts]: Start accepts. Automaton has 61401 states and 87419 transitions. Word has length 665 [2022-03-17 23:48:28,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:48:28,711 INFO L478 AbstractCegarLoop]: Abstraction has 61401 states and 87419 transitions. [2022-03-17 23:48:28,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:48:28,711 INFO L276 IsEmpty]: Start isEmpty. Operand 61401 states and 87419 transitions. [2022-03-17 23:48:28,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2022-03-17 23:48:28,770 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:48:28,770 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:48:28,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-17 23:48:28,770 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:48:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:48:28,770 INFO L85 PathProgramCache]: Analyzing trace with hash -820872816, now seen corresponding path program 2 times [2022-03-17 23:48:28,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:48:28,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454334156] [2022-03-17 23:48:28,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:48:28,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:48:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:48:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:48:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:48:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4334 backedges. 2373 proven. 1057 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2022-03-17 23:48:31,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:48:31,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454334156] [2022-03-17 23:48:31,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454334156] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:48:31,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371036312] [2022-03-17 23:48:31,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-17 23:48:31,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:48:31,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:48:31,246 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 23:48:31,247 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 23:49:02,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-17 23:49:02,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-17 23:49:02,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 145 conjunts are in the unsatisfiable core [2022-03-17 23:49:03,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:49:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:49:03,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,219 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:03,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 23:49:03,225 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 23:49:03,254 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 23:49:03,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,259 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:03,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-03-17 23:49:03,418 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-17 23:49:03,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-17 23:49:03,432 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-17 23:49:03,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-17 23:49:03,447 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-17 23:49:03,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2022-03-17 23:49:03,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-03-17 23:49:03,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-03-17 23:49:03,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-03-17 23:49:03,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-03-17 23:49:03,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-03-17 23:49:03,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-03-17 23:49:03,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:03,975 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:49:03,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-03-17 23:49:03,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,004 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:49:04,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-03-17 23:49:04,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,033 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:49:04,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 52 [2022-03-17 23:49:04,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-03-17 23:49:04,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-03-17 23:49:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:04,260 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-17 23:49:04,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 211 treesize of output 229 [2022-03-17 23:49:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 224 [2022-03-17 23:49:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,853 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-03-17 23:49:06,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 260 treesize of output 258 [2022-03-17 23:49:06,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:06,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 240 [2022-03-17 23:49:10,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,290 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-03-17 23:49:10,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 257 [2022-03-17 23:49:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-03-17 23:49:10,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,739 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:10,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-03-17 23:49:10,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-03-17 23:49:10,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:10,784 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:10,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-03-17 23:49:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,179 INFO L356 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2022-03-17 23:49:12,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2022-03-17 23:49:12,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,198 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-17 23:49:12,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-03-17 23:49:12,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 113 [2022-03-17 23:49:12,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:12,414 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:12,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 125 [2022-03-17 23:49:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-03-17 23:49:14,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,884 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:14,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-03-17 23:49:14,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:14,995 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-03-17 23:49:14,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 179 [2022-03-17 23:49:14,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,022 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-03-17 23:49:15,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 167 [2022-03-17 23:49:15,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-03-17 23:49:15,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 153 [2022-03-17 23:49:15,318 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-17 23:49:15,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-03-17 23:49:15,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:15,333 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:15,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 165 [2022-03-17 23:49:17,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:17,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:17,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:17,576 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-17 23:49:17,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 224 treesize of output 190 [2022-03-17 23:49:17,590 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-03-17 23:49:17,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 34 [2022-03-17 23:49:17,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:49:17,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 132 [2022-03-17 23:49:22,476 INFO L356 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-03-17 23:49:22,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 10 [2022-03-17 23:49:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4334 backedges. 2524 proven. 870 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-03-17 23:49:22,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:49:23,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1212 treesize of output 1064