/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.08.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:28:32,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:28:32,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:28:32,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:28:32,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:28:32,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:28:32,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:28:32,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:28:32,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:28:32,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:28:32,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:28:32,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:28:32,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:28:32,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:28:32,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:28:32,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:28:32,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:28:32,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:28:32,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:28:32,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:28:32,121 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:28:32,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:28:32,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:28:32,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:28:32,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:28:32,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:28:32,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:28:32,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:28:32,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:28:32,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:28:32,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:28:32,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:28:32,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:28:32,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:28:32,135 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 23:28:32,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:28:32,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:28:32,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:28:32,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:28:32,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:28:32,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:28:32,156 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:28:32,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:28:32,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:28:32,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:28:32,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:28:32,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:28:32,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:28:32,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:28:32,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:28:32,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:28:32,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:28:32,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:28:32,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:28:32,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:28:32,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:28:32,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:28:32,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:28:32,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:28:32,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:28:32,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:28:32,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:28:32,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:28:32,160 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:28:32,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:28:32,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:28:32,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:28:32,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:28:32,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:28:32,406 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:28:32,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-03-17 23:28:32,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c194044/71a1746a387949fda7dda51ea7d3c41a/FLAGf1e8842fd [2022-03-17 23:28:32,934 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:28:32,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-1.c [2022-03-17 23:28:32,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c194044/71a1746a387949fda7dda51ea7d3c41a/FLAGf1e8842fd [2022-03-17 23:28:32,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c194044/71a1746a387949fda7dda51ea7d3c41a [2022-03-17 23:28:32,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:28:32,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:28:32,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:28:32,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:28:32,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:28:32,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:28:32" (1/1) ... [2022-03-17 23:28:32,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49721c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:32, skipping insertion in model container [2022-03-17 23:28:32,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:28:32" (1/1) ... [2022-03-17 23:28:32,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:28:33,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:28:33,456 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.08.i.cil-1.c[74696,74709] [2022-03-17 23:28:33,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:28:33,482 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:28:33,578 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.08.i.cil-1.c[74696,74709] [2022-03-17 23:28:33,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:28:33,597 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:28:33,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33 WrapperNode [2022-03-17 23:28:33,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:28:33,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:28:33,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:28:33,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:28:33,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:28:33,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:28:33,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:28:33,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:28:33,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (1/1) ... [2022-03-17 23:28:33,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:28:33,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:28:33,712 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 23:28:33,736 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 23:28:33,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:28:33,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:28:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:28:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:28:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:28:33,913 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:28:33,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:28:34,814 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:28:35,207 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:28:35,207 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:28:35,217 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:28:35,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:28:35,223 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:28:35,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:28:35 BoogieIcfgContainer [2022-03-17 23:28:35,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:28:35,226 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:28:35,226 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:28:35,227 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:28:35,229 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:28:35" (1/1) ... [2022-03-17 23:28:35,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:28:35 BasicIcfg [2022-03-17 23:28:35,292 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:28:35,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:28:35,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:28:35,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:28:35,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:28:32" (1/4) ... [2022-03-17 23:28:35,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cfef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:28:35, skipping insertion in model container [2022-03-17 23:28:35,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:28:33" (2/4) ... [2022-03-17 23:28:35,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cfef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:28:35, skipping insertion in model container [2022-03-17 23:28:35,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:28:35" (3/4) ... [2022-03-17 23:28:35,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359cfef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:28:35, skipping insertion in model container [2022-03-17 23:28:35,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:28:35" (4/4) ... [2022-03-17 23:28:35,301 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-1.cqvasr [2022-03-17 23:28:35,305 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:28:35,305 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:28:35,346 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:28:35,351 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 23:28:35,351 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:28:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 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 23:28:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 23:28:35,377 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:35,377 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:28:35,378 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:35,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:35,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1946519082, now seen corresponding path program 1 times [2022-03-17 23:28:35,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:35,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038260556] [2022-03-17 23:28:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:35,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:35,918 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 23:28:35,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:35,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038260556] [2022-03-17 23:28:35,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038260556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:35,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:35,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:35,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291408260] [2022-03-17 23:28:35,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:35,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:35,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:35,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:35,959 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 1.7086092715231789) internal successors, (258), 152 states have internal predecessors, (258), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:38,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:39,154 INFO L93 Difference]: Finished difference Result 336 states and 564 transitions. [2022-03-17 23:28:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:39,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-17 23:28:39,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:39,164 INFO L225 Difference]: With dead ends: 336 [2022-03-17 23:28:39,164 INFO L226 Difference]: Without dead ends: 171 [2022-03-17 23:28:39,167 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 23:28:39,169 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:39,170 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 613 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 23:28:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-03-17 23:28:39,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2022-03-17 23:28:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.5570469798657718) internal successors, (232), 149 states have internal predecessors, (232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:39,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 236 transitions. [2022-03-17 23:28:39,207 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 236 transitions. Word has length 50 [2022-03-17 23:28:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:39,208 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 236 transitions. [2022-03-17 23:28:39,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 236 transitions. [2022-03-17 23:28:39,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:28:39,210 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:39,210 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] [2022-03-17 23:28:39,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:28:39,211 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:39,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash 888216424, now seen corresponding path program 1 times [2022-03-17 23:28:39,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:39,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675219214] [2022-03-17 23:28:39,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:39,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:39,382 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 23:28:39,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675219214] [2022-03-17 23:28:39,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675219214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:39,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:39,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127512211] [2022-03-17 23:28:39,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:39,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:39,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:39,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:39,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:39,391 INFO L87 Difference]: Start difference. First operand 154 states and 236 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:41,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:43,714 WARN L534 Checker$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 23:28:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:44,431 INFO L93 Difference]: Finished difference Result 400 states and 618 transitions. [2022-03-17 23:28:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:44,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:28:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:44,437 INFO L225 Difference]: With dead ends: 400 [2022-03-17 23:28:44,438 INFO L226 Difference]: Without dead ends: 272 [2022-03-17 23:28:44,440 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 23:28:44,441 INFO L912 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:44,441 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 636 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:28:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-03-17 23:28:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 170. [2022-03-17 23:28:44,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5575757575757576) internal successors, (257), 165 states have internal predecessors, (257), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 261 transitions. [2022-03-17 23:28:44,458 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 261 transitions. Word has length 63 [2022-03-17 23:28:44,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:44,459 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 261 transitions. [2022-03-17 23:28:44,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:44,459 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 261 transitions. [2022-03-17 23:28:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:28:44,461 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:44,461 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] [2022-03-17 23:28:44,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:28:44,461 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:44,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:44,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1909217456, now seen corresponding path program 1 times [2022-03-17 23:28:44,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:44,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340711201] [2022-03-17 23:28:44,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:44,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:44,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:44,656 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 23:28:44,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:44,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340711201] [2022-03-17 23:28:44,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340711201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:44,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:44,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:44,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964211620] [2022-03-17 23:28:44,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:44,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:44,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:44,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:44,658 INFO L87 Difference]: Start difference. First operand 170 states and 261 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:46,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:47,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:47,748 INFO L93 Difference]: Finished difference Result 431 states and 668 transitions. [2022-03-17 23:28:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:47,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:28:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:47,750 INFO L225 Difference]: With dead ends: 431 [2022-03-17 23:28:47,750 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 23:28:47,751 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 23:28:47,752 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 150 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:47,752 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 23:28:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 23:28:47,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 181. [2022-03-17 23:28:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5397727272727273) internal successors, (271), 176 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 275 transitions. [2022-03-17 23:28:47,761 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 275 transitions. Word has length 64 [2022-03-17 23:28:47,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:47,761 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 275 transitions. [2022-03-17 23:28:47,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 275 transitions. [2022-03-17 23:28:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:28:47,770 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:47,771 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] [2022-03-17 23:28:47,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:28:47,771 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:47,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1031303024, now seen corresponding path program 1 times [2022-03-17 23:28:47,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:47,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538803231] [2022-03-17 23:28:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:47,944 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 23:28:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:47,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538803231] [2022-03-17 23:28:47,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538803231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:47,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:47,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:47,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932581042] [2022-03-17 23:28:47,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:47,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:47,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:47,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:47,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:47,950 INFO L87 Difference]: Start difference. First operand 181 states and 275 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:49,303 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 23:28:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:51,277 INFO L93 Difference]: Finished difference Result 352 states and 534 transitions. [2022-03-17 23:28:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:51,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:28:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:51,279 INFO L225 Difference]: With dead ends: 352 [2022-03-17 23:28:51,279 INFO L226 Difference]: Without dead ends: 197 [2022-03-17 23:28:51,280 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 23:28:51,281 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 26 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:51,281 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 491 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 23:28:51,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-03-17 23:28:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-03-17 23:28:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5340909090909092) internal successors, (270), 176 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 274 transitions. [2022-03-17 23:28:51,294 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 274 transitions. Word has length 64 [2022-03-17 23:28:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:51,295 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 274 transitions. [2022-03-17 23:28:51,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 274 transitions. [2022-03-17 23:28:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:28:51,296 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:51,296 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] [2022-03-17 23:28:51,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:28:51,297 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:51,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:51,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1335121200, now seen corresponding path program 1 times [2022-03-17 23:28:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:51,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977849307] [2022-03-17 23:28:51,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:51,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:51,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:51,403 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 23:28:51,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:51,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977849307] [2022-03-17 23:28:51,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977849307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:51,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:51,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:51,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610771232] [2022-03-17 23:28:51,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:51,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:51,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:51,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:51,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:51,405 INFO L87 Difference]: Start difference. First operand 181 states and 274 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:53,415 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 23:28:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:28:53,831 INFO L93 Difference]: Finished difference Result 351 states and 532 transitions. [2022-03-17 23:28:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:28:53,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:28:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:28:53,833 INFO L225 Difference]: With dead ends: 351 [2022-03-17 23:28:53,833 INFO L226 Difference]: Without dead ends: 196 [2022-03-17 23:28:53,834 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 23:28:53,835 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:28:53,835 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 493 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:28:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-03-17 23:28:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 181. [2022-03-17 23:28:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5284090909090908) internal successors, (269), 176 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:53,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2022-03-17 23:28:53,843 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 64 [2022-03-17 23:28:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:28:53,843 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2022-03-17 23:28:53,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2022-03-17 23:28:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:28:53,845 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:28:53,845 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] [2022-03-17 23:28:53,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:28:53,845 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:28:53,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:28:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash -25859152, now seen corresponding path program 1 times [2022-03-17 23:28:53,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:28:53,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658877411] [2022-03-17 23:28:53,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:28:53,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:28:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:28:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:28:53,972 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 23:28:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:28:53,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658877411] [2022-03-17 23:28:53,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658877411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:28:53,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:28:53,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:28:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542716684] [2022-03-17 23:28:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:28:53,974 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:28:53,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:28:53,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:28:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:28:53,975 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:28:55,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:56,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:28:58,750 WARN L534 Checker$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 23:29:00,777 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 23:29:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:01,329 INFO L93 Difference]: Finished difference Result 442 states and 678 transitions. [2022-03-17 23:29:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:29:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:01,331 INFO L225 Difference]: With dead ends: 442 [2022-03-17 23:29:01,331 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 23:29:01,332 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 23:29:01,333 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 143 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:01,333 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:29:01,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 23:29:01,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-17 23:29:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.532967032967033) internal successors, (279), 182 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 283 transitions. [2022-03-17 23:29:01,340 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 283 transitions. Word has length 64 [2022-03-17 23:29:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:01,340 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 283 transitions. [2022-03-17 23:29:01,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 283 transitions. [2022-03-17 23:29:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:29:01,341 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:01,342 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] [2022-03-17 23:29:01,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:29:01,342 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:01,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:01,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1757731560, now seen corresponding path program 1 times [2022-03-17 23:29:01,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:01,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255674067] [2022-03-17 23:29:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:01,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:01,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:01,490 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 23:29:01,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:01,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255674067] [2022-03-17 23:29:01,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255674067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:01,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:01,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:01,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091149356] [2022-03-17 23:29:01,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:01,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:01,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:01,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:01,493 INFO L87 Difference]: Start difference. First operand 187 states and 283 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 23:29:02,515 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 23:29:05,813 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 23:29:06,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:06,213 INFO L93 Difference]: Finished difference Result 361 states and 550 transitions. [2022-03-17 23:29:06,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:06,214 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 23:29:06,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:06,215 INFO L225 Difference]: With dead ends: 361 [2022-03-17 23:29:06,215 INFO L226 Difference]: Without dead ends: 200 [2022-03-17 23:29:06,216 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:06,217 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:06,217 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:29:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-17 23:29:06,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-17 23:29:06,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-17 23:29:06,222 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 65 [2022-03-17 23:29:06,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:06,223 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-17 23:29:06,223 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 23:29:06,223 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-17 23:29:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:29:06,224 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:06,224 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] [2022-03-17 23:29:06,224 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:29:06,225 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:06,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:06,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2096002932, now seen corresponding path program 1 times [2022-03-17 23:29:06,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:06,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977275260] [2022-03-17 23:29:06,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:06,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:06,380 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 23:29:06,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:06,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977275260] [2022-03-17 23:29:06,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977275260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:06,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:06,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746722627] [2022-03-17 23:29:06,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:06,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:06,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:06,381 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:07,409 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 23:29:10,789 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 23:29:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:11,175 INFO L93 Difference]: Finished difference Result 361 states and 549 transitions. [2022-03-17 23:29:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:11,176 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 23:29:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:11,177 INFO L225 Difference]: With dead ends: 361 [2022-03-17 23:29:11,177 INFO L226 Difference]: Without dead ends: 200 [2022-03-17 23:29:11,178 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 23:29:11,179 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 20 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:11,179 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 497 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:29:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-17 23:29:11,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-17 23:29:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-03-17 23:29:11,184 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 66 [2022-03-17 23:29:11,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:11,184 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-03-17 23:29:11,185 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 23:29:11,185 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-03-17 23:29:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:29:11,185 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:11,186 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] [2022-03-17 23:29:11,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:29:11,186 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1315364651, now seen corresponding path program 1 times [2022-03-17 23:29:11,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:11,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832361364] [2022-03-17 23:29:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:11,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:11,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:11,297 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 23:29:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832361364] [2022-03-17 23:29:11,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832361364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:11,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:11,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:11,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969348973] [2022-03-17 23:29:11,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:11,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:11,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:11,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:11,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:11,298 INFO L87 Difference]: Start difference. First operand 187 states and 281 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 23:29:14,332 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 23:29:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:15,277 INFO L93 Difference]: Finished difference Result 448 states and 685 transitions. [2022-03-17 23:29:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:15,278 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 23:29:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:15,280 INFO L225 Difference]: With dead ends: 448 [2022-03-17 23:29:15,280 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 23:29:15,280 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 23:29:15,281 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 144 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:15,281 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:29:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 23:29:15,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-03-17 23:29:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5054945054945055) internal successors, (274), 182 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 278 transitions. [2022-03-17 23:29:15,287 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 278 transitions. Word has length 67 [2022-03-17 23:29:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:15,287 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 278 transitions. [2022-03-17 23:29:15,287 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 23:29:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 278 transitions. [2022-03-17 23:29:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:29:15,288 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:15,288 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] [2022-03-17 23:29:15,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:29:15,289 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:15,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash 972914138, now seen corresponding path program 1 times [2022-03-17 23:29:15,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:15,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353248867] [2022-03-17 23:29:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:15,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:15,412 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 23:29:15,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:15,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353248867] [2022-03-17 23:29:15,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353248867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:15,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:15,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966691696] [2022-03-17 23:29:15,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:15,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:15,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:15,414 INFO L87 Difference]: Start difference. First operand 187 states and 278 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 23:29:16,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:18,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:19,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:21,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:22,025 INFO L93 Difference]: Finished difference Result 388 states and 585 transitions. [2022-03-17 23:29:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:22,025 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 23:29:22,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:22,027 INFO L225 Difference]: With dead ends: 388 [2022-03-17 23:29:22,027 INFO L226 Difference]: Without dead ends: 227 [2022-03-17 23:29:22,027 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 23:29:22,028 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:22,028 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 515 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:29:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-17 23:29:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 209. [2022-03-17 23:29:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5098039215686274) internal successors, (308), 204 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 312 transitions. [2022-03-17 23:29:22,034 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 312 transitions. Word has length 67 [2022-03-17 23:29:22,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:22,034 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 312 transitions. [2022-03-17 23:29:22,034 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 23:29:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 312 transitions. [2022-03-17 23:29:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-17 23:29:22,035 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:22,035 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] [2022-03-17 23:29:22,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:29:22,036 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2136087668, now seen corresponding path program 1 times [2022-03-17 23:29:22,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:22,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757600825] [2022-03-17 23:29:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:22,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:22,156 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 23:29:22,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:22,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757600825] [2022-03-17 23:29:22,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757600825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:22,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:22,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:22,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104235169] [2022-03-17 23:29:22,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:22,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:22,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:22,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:22,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:22,158 INFO L87 Difference]: Start difference. First operand 209 states and 312 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:23,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:25,464 WARN L534 Checker$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 23:29:27,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:27,319 INFO L93 Difference]: Finished difference Result 404 states and 609 transitions. [2022-03-17 23:29:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:27,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-17 23:29:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:27,322 INFO L225 Difference]: With dead ends: 404 [2022-03-17 23:29:27,322 INFO L226 Difference]: Without dead ends: 221 [2022-03-17 23:29:27,322 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 23:29:27,323 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 20 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:27,323 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 576 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:29:27,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-17 23:29:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 209. [2022-03-17 23:29:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5049019607843137) internal successors, (307), 204 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 311 transitions. [2022-03-17 23:29:27,328 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 311 transitions. Word has length 81 [2022-03-17 23:29:27,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:27,329 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 311 transitions. [2022-03-17 23:29:27,329 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 311 transitions. [2022-03-17 23:29:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-17 23:29:27,330 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:27,330 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-17 23:29:27,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:29:27,330 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:27,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:27,331 INFO L85 PathProgramCache]: Analyzing trace with hash -230336556, now seen corresponding path program 1 times [2022-03-17 23:29:27,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:27,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880901142] [2022-03-17 23:29:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:27,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:27,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:27,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:27,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880901142] [2022-03-17 23:29:27,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880901142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:27,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:27,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491754271] [2022-03-17 23:29:27,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:27,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:27,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:27,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:27,476 INFO L87 Difference]: Start difference. First operand 209 states and 311 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 23:29:28,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:30,626 WARN L534 Checker$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 23:29:32,518 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 23:29:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:32,991 INFO L93 Difference]: Finished difference Result 491 states and 745 transitions. [2022-03-17 23:29:32,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:32,992 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 81 [2022-03-17 23:29:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:32,993 INFO L225 Difference]: With dead ends: 491 [2022-03-17 23:29:32,993 INFO L226 Difference]: Without dead ends: 308 [2022-03-17 23:29:32,994 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 23:29:32,995 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 141 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:32,995 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:29:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-03-17 23:29:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-03-17 23:29:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.497560975609756) internal successors, (307), 205 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 311 transitions. [2022-03-17 23:29:33,001 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 311 transitions. Word has length 81 [2022-03-17 23:29:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:33,001 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 311 transitions. [2022-03-17 23:29:33,001 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 23:29:33,001 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 311 transitions. [2022-03-17 23:29:33,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-17 23:29:33,002 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:33,002 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] [2022-03-17 23:29:33,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:29:33,002 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:33,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:33,003 INFO L85 PathProgramCache]: Analyzing trace with hash 22437823, now seen corresponding path program 1 times [2022-03-17 23:29:33,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:33,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800024471] [2022-03-17 23:29:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:33,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:33,110 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 23:29:33,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:33,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800024471] [2022-03-17 23:29:33,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800024471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:33,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:33,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:33,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775260237] [2022-03-17 23:29:33,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:33,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:33,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:33,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:33,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:33,112 INFO L87 Difference]: Start difference. First operand 210 states and 311 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 23:29:34,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:35,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:37,929 WARN L534 Checker$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 23:29:38,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:38,297 INFO L93 Difference]: Finished difference Result 411 states and 615 transitions. [2022-03-17 23:29:38,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:38,297 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 23:29:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:38,298 INFO L225 Difference]: With dead ends: 411 [2022-03-17 23:29:38,298 INFO L226 Difference]: Without dead ends: 227 [2022-03-17 23:29:38,299 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 23:29:38,299 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 38 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:38,300 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:29:38,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-17 23:29:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-03-17 23:29:38,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4926829268292683) internal successors, (306), 205 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 310 transitions. [2022-03-17 23:29:38,305 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 310 transitions. Word has length 82 [2022-03-17 23:29:38,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:38,305 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 310 transitions. [2022-03-17 23:29:38,306 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 23:29:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 310 transitions. [2022-03-17 23:29:38,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-17 23:29:38,306 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:38,307 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:29:38,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:29:38,307 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:38,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:38,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2019421135, now seen corresponding path program 1 times [2022-03-17 23:29:38,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:38,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410429656] [2022-03-17 23:29:38,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:38,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:29:38,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:38,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410429656] [2022-03-17 23:29:38,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410429656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:38,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:38,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:38,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039554437] [2022-03-17 23:29:38,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:38,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:38,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:38,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:38,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:38,417 INFO L87 Difference]: Start difference. First operand 210 states and 310 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:41,492 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2022-03-17 23:29:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:41,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-17 23:29:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:41,494 INFO L225 Difference]: With dead ends: 411 [2022-03-17 23:29:41,494 INFO L226 Difference]: Without dead ends: 227 [2022-03-17 23:29:41,495 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 23:29:41,496 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 36 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:41,496 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 517 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 23:29:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-17 23:29:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 210. [2022-03-17 23:29:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.4878048780487805) internal successors, (305), 205 states have internal predecessors, (305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 309 transitions. [2022-03-17 23:29:41,502 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 309 transitions. Word has length 83 [2022-03-17 23:29:41,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:41,502 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 309 transitions. [2022-03-17 23:29:41,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 309 transitions. [2022-03-17 23:29:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-17 23:29:41,503 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:41,503 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] [2022-03-17 23:29:41,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:29:41,503 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -915248837, now seen corresponding path program 1 times [2022-03-17 23:29:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:41,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450879239] [2022-03-17 23:29:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:41,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:41,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:41,609 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 23:29:41,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:41,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450879239] [2022-03-17 23:29:41,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450879239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:41,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:41,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:41,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321318204] [2022-03-17 23:29:41,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:41,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:41,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:41,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:41,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:41,610 INFO L87 Difference]: Start difference. First operand 210 states and 309 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 23:29:44,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:46,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:46,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:46,530 INFO L93 Difference]: Finished difference Result 492 states and 739 transitions. [2022-03-17 23:29:46,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:46,531 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 23:29:46,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:46,532 INFO L225 Difference]: With dead ends: 492 [2022-03-17 23:29:46,533 INFO L226 Difference]: Without dead ends: 308 [2022-03-17 23:29:46,533 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 23:29:46,534 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:46,534 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:29:46,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-03-17 23:29:46,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 210. [2022-03-17 23:29:46,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.473170731707317) internal successors, (302), 205 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 306 transitions. [2022-03-17 23:29:46,540 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 306 transitions. Word has length 84 [2022-03-17 23:29:46,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:46,540 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 306 transitions. [2022-03-17 23:29:46,540 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 23:29:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 306 transitions. [2022-03-17 23:29:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 23:29:46,541 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:46,541 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] [2022-03-17 23:29:46,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:29:46,541 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash 733553435, now seen corresponding path program 1 times [2022-03-17 23:29:46,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:46,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55539780] [2022-03-17 23:29:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:46,654 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 23:29:46,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:46,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55539780] [2022-03-17 23:29:46,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55539780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:46,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:46,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:46,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54982520] [2022-03-17 23:29:46,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:46,655 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:46,655 INFO L87 Difference]: Start difference. First operand 210 states and 306 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:49,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:51,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:51,623 INFO L93 Difference]: Finished difference Result 498 states and 739 transitions. [2022-03-17 23:29:51,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:51,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-17 23:29:51,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:51,625 INFO L225 Difference]: With dead ends: 498 [2022-03-17 23:29:51,625 INFO L226 Difference]: Without dead ends: 314 [2022-03-17 23:29:51,626 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:29:51,626 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 91 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:51,626 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 491 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:29:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-17 23:29:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 251. [2022-03-17 23:29:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5040650406504066) internal successors, (370), 246 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 374 transitions. [2022-03-17 23:29:51,635 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 374 transitions. Word has length 89 [2022-03-17 23:29:51,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:51,636 INFO L478 AbstractCegarLoop]: Abstraction has 251 states and 374 transitions. [2022-03-17 23:29:51,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:51,636 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 374 transitions. [2022-03-17 23:29:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-17 23:29:51,637 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:51,637 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] [2022-03-17 23:29:51,637 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:29:51,637 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:51,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1202106852, now seen corresponding path program 1 times [2022-03-17 23:29:51,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:51,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510767579] [2022-03-17 23:29:51,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:51,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:51,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:51,786 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 23:29:51,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:51,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510767579] [2022-03-17 23:29:51,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510767579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:51,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:51,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:51,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891770581] [2022-03-17 23:29:51,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:51,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:51,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:51,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:51,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:51,787 INFO L87 Difference]: Start difference. First operand 251 states and 374 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:53,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:56,148 WARN L534 Checker$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 23:29:57,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:29:57,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:29:57,659 INFO L93 Difference]: Finished difference Result 593 states and 895 transitions. [2022-03-17 23:29:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:29:57,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-17 23:29:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:29:57,661 INFO L225 Difference]: With dead ends: 593 [2022-03-17 23:29:57,661 INFO L226 Difference]: Without dead ends: 368 [2022-03-17 23:29:57,662 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 23:29:57,662 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:29:57,662 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 354 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:29:57,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-03-17 23:29:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 250. [2022-03-17 23:29:57,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.506122448979592) internal successors, (369), 245 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 373 transitions. [2022-03-17 23:29:57,669 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 373 transitions. Word has length 89 [2022-03-17 23:29:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:29:57,670 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 373 transitions. [2022-03-17 23:29:57,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:29:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 373 transitions. [2022-03-17 23:29:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-17 23:29:57,671 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:29:57,671 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] [2022-03-17 23:29:57,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:29:57,671 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:29:57,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:29:57,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2117392348, now seen corresponding path program 1 times [2022-03-17 23:29:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:29:57,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082260652] [2022-03-17 23:29:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:29:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:29:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:29:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:29:57,781 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 23:29:57,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:29:57,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082260652] [2022-03-17 23:29:57,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082260652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:29:57,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:29:57,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:29:57,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412112476] [2022-03-17 23:29:57,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:29:57,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:29:57,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:29:57,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:29:57,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:29:57,782 INFO L87 Difference]: Start difference. First operand 250 states and 373 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 23:30:00,437 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 23:30:00,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:00,904 INFO L93 Difference]: Finished difference Result 570 states and 861 transitions. [2022-03-17 23:30:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:00,905 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 90 [2022-03-17 23:30:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:00,906 INFO L225 Difference]: With dead ends: 570 [2022-03-17 23:30:00,906 INFO L226 Difference]: Without dead ends: 346 [2022-03-17 23:30:00,907 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 23:30:00,907 INFO L912 BasicCegarLoop]: 179 mSDtfsCounter, 80 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:00,908 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 475 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 23:30:00,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-03-17 23:30:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 292. [2022-03-17 23:30:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5261324041811846) internal successors, (438), 287 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 442 transitions. [2022-03-17 23:30:00,915 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 442 transitions. Word has length 90 [2022-03-17 23:30:00,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:00,915 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 442 transitions. [2022-03-17 23:30:00,916 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 23:30:00,916 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 442 transitions. [2022-03-17 23:30:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-17 23:30:00,917 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:00,917 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] [2022-03-17 23:30:00,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:30:00,917 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:00,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:00,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1993319101, now seen corresponding path program 1 times [2022-03-17 23:30:00,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:00,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580942096] [2022-03-17 23:30:00,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:00,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:01,030 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 23:30:01,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:01,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580942096] [2022-03-17 23:30:01,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580942096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:01,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:01,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:01,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50066916] [2022-03-17 23:30:01,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:01,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:01,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:01,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:01,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:01,032 INFO L87 Difference]: Start difference. First operand 292 states and 442 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 23:30:03,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:04,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:05,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:05,390 INFO L93 Difference]: Finished difference Result 656 states and 1005 transitions. [2022-03-17 23:30:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:05,390 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 90 [2022-03-17 23:30:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:05,392 INFO L225 Difference]: With dead ends: 656 [2022-03-17 23:30:05,392 INFO L226 Difference]: Without dead ends: 390 [2022-03-17 23:30:05,393 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 23:30:05,393 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 117 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:05,393 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 376 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:30:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-03-17 23:30:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 272. [2022-03-17 23:30:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.5430711610486891) internal successors, (412), 267 states have internal predecessors, (412), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 416 transitions. [2022-03-17 23:30:05,400 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 416 transitions. Word has length 90 [2022-03-17 23:30:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:05,401 INFO L478 AbstractCegarLoop]: Abstraction has 272 states and 416 transitions. [2022-03-17 23:30:05,401 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 23:30:05,401 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 416 transitions. [2022-03-17 23:30:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:30:05,402 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:05,402 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] [2022-03-17 23:30:05,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:30:05,402 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:05,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:05,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1693007915, now seen corresponding path program 1 times [2022-03-17 23:30:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:05,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705494971] [2022-03-17 23:30:05,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:05,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:05,553 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 23:30:05,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:05,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705494971] [2022-03-17 23:30:05,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705494971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:05,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:05,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:05,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010426006] [2022-03-17 23:30:05,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:05,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:05,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:05,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:05,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:05,555 INFO L87 Difference]: Start difference. First operand 272 states and 416 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 23:30:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:08,923 INFO L93 Difference]: Finished difference Result 611 states and 942 transitions. [2022-03-17 23:30:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 23:30:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:08,925 INFO L225 Difference]: With dead ends: 611 [2022-03-17 23:30:08,925 INFO L226 Difference]: Without dead ends: 365 [2022-03-17 23:30:08,925 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 23:30:08,926 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 86 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:08,926 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 481 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:30:08,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-03-17 23:30:08,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 306. [2022-03-17 23:30:08,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 301 states have (on average 1.548172757475083) internal successors, (466), 301 states have internal predecessors, (466), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 470 transitions. [2022-03-17 23:30:08,934 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 470 transitions. Word has length 118 [2022-03-17 23:30:08,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:08,934 INFO L478 AbstractCegarLoop]: Abstraction has 306 states and 470 transitions. [2022-03-17 23:30:08,934 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 23:30:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 470 transitions. [2022-03-17 23:30:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:30:08,935 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:08,936 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] [2022-03-17 23:30:08,936 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:30:08,936 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:08,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1647730486, now seen corresponding path program 1 times [2022-03-17 23:30:08,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:08,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126788751] [2022-03-17 23:30:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:08,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:09,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:09,051 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 23:30:09,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:09,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126788751] [2022-03-17 23:30:09,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126788751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:09,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:09,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:09,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500405942] [2022-03-17 23:30:09,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:09,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:09,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:09,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:09,053 INFO L87 Difference]: Start difference. First operand 306 states and 470 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 23:30:12,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:12,764 INFO L93 Difference]: Finished difference Result 738 states and 1147 transitions. [2022-03-17 23:30:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:12,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 23:30:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:12,766 INFO L225 Difference]: With dead ends: 738 [2022-03-17 23:30:12,766 INFO L226 Difference]: Without dead ends: 458 [2022-03-17 23:30:12,767 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 23:30:12,767 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 123 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:12,767 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 364 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-17 23:30:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-03-17 23:30:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 336. [2022-03-17 23:30:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 331 states have (on average 1.5589123867069485) internal successors, (516), 331 states have internal predecessors, (516), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 520 transitions. [2022-03-17 23:30:12,776 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 520 transitions. Word has length 118 [2022-03-17 23:30:12,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:12,776 INFO L478 AbstractCegarLoop]: Abstraction has 336 states and 520 transitions. [2022-03-17 23:30:12,776 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 23:30:12,776 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 520 transitions. [2022-03-17 23:30:12,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:30:12,778 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:12,778 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] [2022-03-17 23:30:12,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:30:12,778 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:12,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash -783527628, now seen corresponding path program 1 times [2022-03-17 23:30:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:12,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852192957] [2022-03-17 23:30:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:12,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:12,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:12,885 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 23:30:12,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:12,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852192957] [2022-03-17 23:30:12,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852192957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:12,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:12,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:12,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041093010] [2022-03-17 23:30:12,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:12,886 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:12,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:12,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:12,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:12,887 INFO L87 Difference]: Start difference. First operand 336 states and 520 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 23:30:14,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:16,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:17,253 INFO L93 Difference]: Finished difference Result 762 states and 1183 transitions. [2022-03-17 23:30:17,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:17,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:30:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:17,255 INFO L225 Difference]: With dead ends: 762 [2022-03-17 23:30:17,255 INFO L226 Difference]: Without dead ends: 452 [2022-03-17 23:30:17,256 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 23:30:17,256 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 119 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:17,256 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 352 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:30:17,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-03-17 23:30:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 373. [2022-03-17 23:30:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 368 states have (on average 1.565217391304348) internal successors, (576), 368 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 580 transitions. [2022-03-17 23:30:17,268 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 580 transitions. Word has length 123 [2022-03-17 23:30:17,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:17,268 INFO L478 AbstractCegarLoop]: Abstraction has 373 states and 580 transitions. [2022-03-17 23:30:17,268 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 23:30:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 580 transitions. [2022-03-17 23:30:17,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:30:17,270 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:17,270 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] [2022-03-17 23:30:17,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:30:17,270 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1000254116, now seen corresponding path program 1 times [2022-03-17 23:30:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:17,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461525629] [2022-03-17 23:30:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:17,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:17,403 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 23:30:17,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:17,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461525629] [2022-03-17 23:30:17,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461525629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:17,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:17,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:17,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048898745] [2022-03-17 23:30:17,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:17,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:17,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:17,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:17,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:17,405 INFO L87 Difference]: Start difference. First operand 373 states and 580 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 23:30:19,419 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 23:30:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:19,836 INFO L93 Difference]: Finished difference Result 811 states and 1266 transitions. [2022-03-17 23:30:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:19,837 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 23:30:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:19,839 INFO L225 Difference]: With dead ends: 811 [2022-03-17 23:30:19,839 INFO L226 Difference]: Without dead ends: 464 [2022-03-17 23:30:19,840 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 23:30:19,840 INFO L912 BasicCegarLoop]: 183 mSDtfsCounter, 77 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:19,840 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 483 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:30:19,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-17 23:30:19,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 413. [2022-03-17 23:30:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 408 states have (on average 1.5686274509803921) internal successors, (640), 408 states have internal predecessors, (640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:19,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 644 transitions. [2022-03-17 23:30:19,850 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 644 transitions. Word has length 124 [2022-03-17 23:30:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:19,850 INFO L478 AbstractCegarLoop]: Abstraction has 413 states and 644 transitions. [2022-03-17 23:30:19,850 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 23:30:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 644 transitions. [2022-03-17 23:30:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:30:19,851 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:19,852 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] [2022-03-17 23:30:19,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:30:19,852 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:19,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash 108561083, now seen corresponding path program 1 times [2022-03-17 23:30:19,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:19,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853464153] [2022-03-17 23:30:19,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:19,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-17 23:30:19,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:19,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853464153] [2022-03-17 23:30:19,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853464153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:19,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:19,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581321192] [2022-03-17 23:30:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:19,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:19,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:19,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:19,961 INFO L87 Difference]: Start difference. First operand 413 states and 644 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:23,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:25,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:25,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:25,550 INFO L93 Difference]: Finished difference Result 845 states and 1323 transitions. [2022-03-17 23:30:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:25,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 23:30:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:25,552 INFO L225 Difference]: With dead ends: 845 [2022-03-17 23:30:25,552 INFO L226 Difference]: Without dead ends: 458 [2022-03-17 23:30:25,552 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 23:30:25,553 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 34 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:25,553 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 605 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:30:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-03-17 23:30:25,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 437. [2022-03-17 23:30:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 432 states have (on average 1.5648148148148149) internal successors, (676), 432 states have internal predecessors, (676), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:25,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 680 transitions. [2022-03-17 23:30:25,562 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 680 transitions. Word has length 124 [2022-03-17 23:30:25,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:25,563 INFO L478 AbstractCegarLoop]: Abstraction has 437 states and 680 transitions. [2022-03-17 23:30:25,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:25,563 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 680 transitions. [2022-03-17 23:30:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:30:25,564 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:25,564 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] [2022-03-17 23:30:25,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:30:25,564 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:25,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:25,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1153121249, now seen corresponding path program 1 times [2022-03-17 23:30:25,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:25,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448343085] [2022-03-17 23:30:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:25,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:25,676 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 23:30:25,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:25,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448343085] [2022-03-17 23:30:25,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448343085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:25,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:25,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:25,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878558286] [2022-03-17 23:30:25,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:25,677 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:25,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:25,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:25,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:25,678 INFO L87 Difference]: Start difference. First operand 437 states and 680 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:26,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:28,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:29,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:30,639 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 23:30:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:31,045 INFO L93 Difference]: Finished difference Result 964 states and 1502 transitions. [2022-03-17 23:30:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:31,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:30:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:31,047 INFO L225 Difference]: With dead ends: 964 [2022-03-17 23:30:31,047 INFO L226 Difference]: Without dead ends: 553 [2022-03-17 23:30:31,048 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 23:30:31,048 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:31,048 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 353 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:30:31,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-17 23:30:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 480. [2022-03-17 23:30:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 475 states have (on average 1.5705263157894738) internal successors, (746), 475 states have internal predecessors, (746), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 750 transitions. [2022-03-17 23:30:31,082 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 750 transitions. Word has length 132 [2022-03-17 23:30:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:31,082 INFO L478 AbstractCegarLoop]: Abstraction has 480 states and 750 transitions. [2022-03-17 23:30:31,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:31,083 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 750 transitions. [2022-03-17 23:30:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:30:31,084 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:31,084 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 23:30:31,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:30:31,085 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:31,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1150642105, now seen corresponding path program 1 times [2022-03-17 23:30:31,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:31,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814506385] [2022-03-17 23:30:31,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:31,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:30:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:31,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814506385] [2022-03-17 23:30:31,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814506385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:31,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:31,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:31,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975149839] [2022-03-17 23:30:31,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:31,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:31,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:31,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:31,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:31,199 INFO L87 Difference]: Start difference. First operand 480 states and 750 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 23:30:33,238 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 23:30:35,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:37,290 WARN L534 Checker$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 23:30:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:37,718 INFO L93 Difference]: Finished difference Result 977 states and 1528 transitions. [2022-03-17 23:30:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:37,719 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 23:30:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:37,721 INFO L225 Difference]: With dead ends: 977 [2022-03-17 23:30:37,721 INFO L226 Difference]: Without dead ends: 523 [2022-03-17 23:30:37,722 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 23:30:37,722 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 61 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:37,722 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 489 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:30:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-17 23:30:37,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 483. [2022-03-17 23:30:37,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5669456066945606) internal successors, (749), 478 states have internal predecessors, (749), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:37,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 753 transitions. [2022-03-17 23:30:37,733 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 753 transitions. Word has length 133 [2022-03-17 23:30:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:37,733 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 753 transitions. [2022-03-17 23:30:37,733 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 23:30:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 753 transitions. [2022-03-17 23:30:37,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-17 23:30:37,734 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:37,735 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:37,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:30:37,735 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:37,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:37,735 INFO L85 PathProgramCache]: Analyzing trace with hash -388650695, now seen corresponding path program 1 times [2022-03-17 23:30:37,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:37,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863711678] [2022-03-17 23:30:37,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:37,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:30:37,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:37,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863711678] [2022-03-17 23:30:37,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863711678] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:37,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:37,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:37,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264030652] [2022-03-17 23:30:37,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:37,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:37,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:37,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:37,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:37,912 INFO L87 Difference]: Start difference. First operand 483 states and 753 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:39,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:41,339 WARN L534 Checker$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 23:30:43,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:45,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:45,593 INFO L93 Difference]: Finished difference Result 1016 states and 1583 transitions. [2022-03-17 23:30:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:45,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-17 23:30:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:45,596 INFO L225 Difference]: With dead ends: 1016 [2022-03-17 23:30:45,596 INFO L226 Difference]: Without dead ends: 559 [2022-03-17 23:30:45,597 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 23:30:45,597 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 144 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:45,597 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 352 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:30:45,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-03-17 23:30:45,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 483. [2022-03-17 23:30:45,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5481171548117154) internal successors, (740), 478 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 744 transitions. [2022-03-17 23:30:45,608 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 744 transitions. Word has length 139 [2022-03-17 23:30:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:45,608 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 744 transitions. [2022-03-17 23:30:45,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 744 transitions. [2022-03-17 23:30:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-17 23:30:45,609 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:45,610 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:45,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:30:45,610 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:45,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1482777273, now seen corresponding path program 1 times [2022-03-17 23:30:45,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:45,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046138994] [2022-03-17 23:30:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:45,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:30:45,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:45,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046138994] [2022-03-17 23:30:45,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046138994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:45,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:45,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:45,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649542058] [2022-03-17 23:30:45,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:45,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:45,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:45,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:45,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:45,727 INFO L87 Difference]: Start difference. First operand 483 states and 744 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:46,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:48,989 WARN L534 Checker$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 23:30:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:50,711 INFO L93 Difference]: Finished difference Result 1006 states and 1552 transitions. [2022-03-17 23:30:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:50,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-17 23:30:50,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:50,713 INFO L225 Difference]: With dead ends: 1006 [2022-03-17 23:30:50,713 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 23:30:50,713 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 23:30:50,714 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 135 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:50,714 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 396 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:30:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 23:30:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 483. [2022-03-17 23:30:50,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5292887029288702) internal successors, (731), 478 states have internal predecessors, (731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 735 transitions. [2022-03-17 23:30:50,724 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 735 transitions. Word has length 140 [2022-03-17 23:30:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:50,725 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 735 transitions. [2022-03-17 23:30:50,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 735 transitions. [2022-03-17 23:30:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:30:50,726 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:50,726 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] [2022-03-17 23:30:50,726 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:30:50,726 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash 768602161, now seen corresponding path program 1 times [2022-03-17 23:30:50,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:50,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035012170] [2022-03-17 23:30:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:50,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:50,838 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 23:30:50,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:50,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035012170] [2022-03-17 23:30:50,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035012170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:50,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:50,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:50,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961088272] [2022-03-17 23:30:50,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:50,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:50,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:50,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:50,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:50,840 INFO L87 Difference]: Start difference. First operand 483 states and 735 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 23:30:53,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:30:55,041 WARN L534 Checker$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 23:30:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:30:56,286 INFO L93 Difference]: Finished difference Result 1049 states and 1602 transitions. [2022-03-17 23:30:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:30:56,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:30:56,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:30:56,288 INFO L225 Difference]: With dead ends: 1049 [2022-03-17 23:30:56,288 INFO L226 Difference]: Without dead ends: 592 [2022-03-17 23:30:56,289 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 23:30:56,289 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:30:56,289 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:30:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-03-17 23:30:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 513. [2022-03-17 23:30:56,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5177165354330708) internal successors, (771), 508 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 23:30:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 775 transitions. [2022-03-17 23:30:56,311 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 775 transitions. Word has length 145 [2022-03-17 23:30:56,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:30:56,312 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 775 transitions. [2022-03-17 23:30:56,312 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 23:30:56,312 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 775 transitions. [2022-03-17 23:30:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:30:56,313 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:30:56,313 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:30:56,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:30:56,314 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:30:56,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:30:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1175650522, now seen corresponding path program 1 times [2022-03-17 23:30:56,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:30:56,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603201483] [2022-03-17 23:30:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:30:56,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:30:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:30:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:30:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:30:56,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:30:56,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603201483] [2022-03-17 23:30:56,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603201483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:30:56,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:30:56,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:30:56,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125269073] [2022-03-17 23:30:56,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:30:56,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:30:56,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:30:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:30:56,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:30:56,440 INFO L87 Difference]: Start difference. First operand 513 states and 775 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:30:59,902 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 23:31:01,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:01,205 INFO L93 Difference]: Finished difference Result 1066 states and 1614 transitions. [2022-03-17 23:31:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:01,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have 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 23:31:01,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:01,207 INFO L225 Difference]: With dead ends: 1066 [2022-03-17 23:31:01,207 INFO L226 Difference]: Without dead ends: 579 [2022-03-17 23:31:01,208 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 23:31:01,212 INFO L912 BasicCegarLoop]: 148 mSDtfsCounter, 123 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:01,212 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 406 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:31:01,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-03-17 23:31:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 513. [2022-03-17 23:31:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5019685039370079) internal successors, (763), 508 states have internal predecessors, (763), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 767 transitions. [2022-03-17 23:31:01,223 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 767 transitions. Word has length 146 [2022-03-17 23:31:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:01,223 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 767 transitions. [2022-03-17 23:31:01,223 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 767 transitions. [2022-03-17 23:31:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:31:01,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:01,225 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] [2022-03-17 23:31:01,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:31:01,225 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:01,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash 404056418, now seen corresponding path program 1 times [2022-03-17 23:31:01,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:01,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613125676] [2022-03-17 23:31:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:01,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:01,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:01,357 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 23:31:01,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:01,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613125676] [2022-03-17 23:31:01,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613125676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:01,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:01,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:01,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436497346] [2022-03-17 23:31:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:01,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:01,359 INFO L87 Difference]: Start difference. First operand 513 states and 767 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 23:31:03,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:05,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:07,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:07,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:07,390 INFO L93 Difference]: Finished difference Result 1028 states and 1543 transitions. [2022-03-17 23:31:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:07,390 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 23:31:07,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:07,392 INFO L225 Difference]: With dead ends: 1028 [2022-03-17 23:31:07,392 INFO L226 Difference]: Without dead ends: 541 [2022-03-17 23:31:07,393 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 23:31:07,393 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 58 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:07,393 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 517 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:31:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-03-17 23:31:07,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 513. [2022-03-17 23:31:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5) internal successors, (762), 508 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:07,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 766 transitions. [2022-03-17 23:31:07,403 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 766 transitions. Word has length 146 [2022-03-17 23:31:07,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:07,403 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 766 transitions. [2022-03-17 23:31:07,403 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 23:31:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 766 transitions. [2022-03-17 23:31:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:31:07,405 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:07,405 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:07,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:31:07,405 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash 222448889, now seen corresponding path program 1 times [2022-03-17 23:31:07,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:07,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281978028] [2022-03-17 23:31:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:07,520 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:31:07,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:07,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281978028] [2022-03-17 23:31:07,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281978028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:07,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:07,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:07,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770991230] [2022-03-17 23:31:07,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:07,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:07,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:07,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:07,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:07,521 INFO L87 Difference]: Start difference. First operand 513 states and 766 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 23:31:09,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:10,826 WARN L534 Checker$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 23:31:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:11,716 INFO L93 Difference]: Finished difference Result 1066 states and 1596 transitions. [2022-03-17 23:31:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:11,716 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 146 [2022-03-17 23:31:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:11,718 INFO L225 Difference]: With dead ends: 1066 [2022-03-17 23:31:11,718 INFO L226 Difference]: Without dead ends: 579 [2022-03-17 23:31:11,719 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 23:31:11,719 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 109 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:11,719 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 396 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:31:11,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-03-17 23:31:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 513. [2022-03-17 23:31:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.4940944881889764) internal successors, (759), 508 states have internal predecessors, (759), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 763 transitions. [2022-03-17 23:31:11,730 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 763 transitions. Word has length 146 [2022-03-17 23:31:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:11,730 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 763 transitions. [2022-03-17 23:31:11,730 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 23:31:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 763 transitions. [2022-03-17 23:31:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 23:31:11,732 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:11,732 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] [2022-03-17 23:31:11,732 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:31:11,732 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:11,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1085963958, now seen corresponding path program 1 times [2022-03-17 23:31:11,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:11,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310141970] [2022-03-17 23:31:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:11,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:11,851 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 23:31:11,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:11,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310141970] [2022-03-17 23:31:11,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310141970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:11,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:11,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508683184] [2022-03-17 23:31:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:11,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:11,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:11,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:11,853 INFO L87 Difference]: Start difference. First operand 513 states and 763 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:13,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:15,562 WARN L534 Checker$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 23:31:17,587 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 23:31:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:18,017 INFO L93 Difference]: Finished difference Result 1109 states and 1655 transitions. [2022-03-17 23:31:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:18,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 23:31:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:18,019 INFO L225 Difference]: With dead ends: 1109 [2022-03-17 23:31:18,019 INFO L226 Difference]: Without dead ends: 622 [2022-03-17 23:31:18,019 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:31:18,019 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 118 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:18,020 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 396 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:31:18,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-03-17 23:31:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 541. [2022-03-17 23:31:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 536 states have (on average 1.4794776119402986) internal successors, (793), 536 states have internal predecessors, (793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 797 transitions. [2022-03-17 23:31:18,030 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 797 transitions. Word has length 148 [2022-03-17 23:31:18,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:18,030 INFO L478 AbstractCegarLoop]: Abstraction has 541 states and 797 transitions. [2022-03-17 23:31:18,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 797 transitions. [2022-03-17 23:31:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:31:18,032 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:18,032 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] [2022-03-17 23:31:18,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:31:18,032 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:18,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:18,033 INFO L85 PathProgramCache]: Analyzing trace with hash 542827771, now seen corresponding path program 1 times [2022-03-17 23:31:18,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:18,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856697218] [2022-03-17 23:31:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:18,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:18,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:18,150 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 23:31:18,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:18,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856697218] [2022-03-17 23:31:18,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856697218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:18,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:18,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:18,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427749274] [2022-03-17 23:31:18,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:18,151 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:18,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:18,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:18,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:18,151 INFO L87 Difference]: Start difference. First operand 541 states and 797 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 23:31:19,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:21,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:23,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:24,210 INFO L93 Difference]: Finished difference Result 1122 states and 1658 transitions. [2022-03-17 23:31:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:24,210 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 23:31:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:24,212 INFO L225 Difference]: With dead ends: 1122 [2022-03-17 23:31:24,212 INFO L226 Difference]: Without dead ends: 607 [2022-03-17 23:31:24,213 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 23:31:24,213 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:24,213 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 372 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:31:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-03-17 23:31:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 541. [2022-03-17 23:31:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 536 states have (on average 1.4645522388059702) internal successors, (785), 536 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 789 transitions. [2022-03-17 23:31:24,224 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 789 transitions. Word has length 149 [2022-03-17 23:31:24,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:24,224 INFO L478 AbstractCegarLoop]: Abstraction has 541 states and 789 transitions. [2022-03-17 23:31:24,224 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 23:31:24,224 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 789 transitions. [2022-03-17 23:31:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:31:24,225 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:24,226 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] [2022-03-17 23:31:24,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:31:24,226 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:24,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:24,226 INFO L85 PathProgramCache]: Analyzing trace with hash -290566255, now seen corresponding path program 1 times [2022-03-17 23:31:24,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:24,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368474420] [2022-03-17 23:31:24,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:24,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:24,364 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 23:31:24,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:24,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368474420] [2022-03-17 23:31:24,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368474420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:24,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:24,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:24,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017623554] [2022-03-17 23:31:24,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:24,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:24,366 INFO L87 Difference]: Start difference. First operand 541 states and 789 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 23:31:26,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:27,710 WARN L534 Checker$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 23:31:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:28,868 INFO L93 Difference]: Finished difference Result 1165 states and 1705 transitions. [2022-03-17 23:31:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:31:28,869 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 155 [2022-03-17 23:31:28,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:28,871 INFO L225 Difference]: With dead ends: 1165 [2022-03-17 23:31:28,871 INFO L226 Difference]: Without dead ends: 650 [2022-03-17 23:31:28,872 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 23:31:28,872 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:28,872 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 372 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 23:31:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-03-17 23:31:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 576. [2022-03-17 23:31:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.457092819614711) internal successors, (832), 571 states have internal predecessors, (832), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 836 transitions. [2022-03-17 23:31:28,883 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 836 transitions. Word has length 155 [2022-03-17 23:31:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:28,884 INFO L478 AbstractCegarLoop]: Abstraction has 576 states and 836 transitions. [2022-03-17 23:31:28,884 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 23:31:28,884 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 836 transitions. [2022-03-17 23:31:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:31:28,885 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:28,885 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:28,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:31:28,886 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:28,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1528516420, now seen corresponding path program 1 times [2022-03-17 23:31:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:28,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100167189] [2022-03-17 23:31:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:28,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 23:31:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:29,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100167189] [2022-03-17 23:31:29,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100167189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:29,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:29,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:31:29,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789256537] [2022-03-17 23:31:29,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:29,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:31:29,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:29,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:31:29,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:31:29,021 INFO L87 Difference]: Start difference. First operand 576 states and 836 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:30,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:32,647 WARN L534 Checker$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 23:31:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:33,782 INFO L93 Difference]: Finished difference Result 1630 states and 2384 transitions. [2022-03-17 23:31:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:31:33,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-17 23:31:33,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:33,785 INFO L225 Difference]: With dead ends: 1630 [2022-03-17 23:31:33,785 INFO L226 Difference]: Without dead ends: 1080 [2022-03-17 23:31:33,786 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 23:31:33,786 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:33,787 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 448 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 296 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:31:33,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-03-17 23:31:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2022-03-17 23:31:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1075 states have (on average 1.455813953488372) internal successors, (1565), 1075 states have internal predecessors, (1565), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1569 transitions. [2022-03-17 23:31:33,806 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1569 transitions. Word has length 155 [2022-03-17 23:31:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:33,806 INFO L478 AbstractCegarLoop]: Abstraction has 1080 states and 1569 transitions. [2022-03-17 23:31:33,806 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1569 transitions. [2022-03-17 23:31:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:31:33,808 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:33,808 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:33,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:31:33,809 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2047808707, now seen corresponding path program 1 times [2022-03-17 23:31:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:33,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732512328] [2022-03-17 23:31:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:33,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-17 23:31:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:33,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732512328] [2022-03-17 23:31:33,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732512328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:33,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:33,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:31:33,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518526143] [2022-03-17 23:31:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:33,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:31:33,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:33,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:31:33,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:31:33,905 INFO L87 Difference]: Start difference. First operand 1080 states and 1569 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:35,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:37,587 WARN L534 Checker$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 23:31:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:38,231 INFO L93 Difference]: Finished difference Result 2161 states and 3145 transitions. [2022-03-17 23:31:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:31:38,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-17 23:31:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:38,234 INFO L225 Difference]: With dead ends: 2161 [2022-03-17 23:31:38,234 INFO L226 Difference]: Without dead ends: 1107 [2022-03-17 23:31:38,235 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 23:31:38,235 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:38,235 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 419 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:31:38,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-03-17 23:31:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1107. [2022-03-17 23:31:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1102 states have (on average 1.4519056261343013) internal successors, (1600), 1102 states have internal predecessors, (1600), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1604 transitions. [2022-03-17 23:31:38,255 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1604 transitions. Word has length 155 [2022-03-17 23:31:38,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:38,255 INFO L478 AbstractCegarLoop]: Abstraction has 1107 states and 1604 transitions. [2022-03-17 23:31:38,255 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1604 transitions. [2022-03-17 23:31:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:31:38,258 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:38,258 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:38,258 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:31:38,258 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:38,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:38,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1773132606, now seen corresponding path program 1 times [2022-03-17 23:31:38,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:38,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964314423] [2022-03-17 23:31:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:38,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-17 23:31:38,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:38,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964314423] [2022-03-17 23:31:38,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964314423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:38,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:38,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:31:38,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364275615] [2022-03-17 23:31:38,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:38,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:31:38,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:31:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:31:38,352 INFO L87 Difference]: Start difference. First operand 1107 states and 1604 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:39,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:41,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:41,306 INFO L93 Difference]: Finished difference Result 2190 states and 3181 transitions. [2022-03-17 23:31:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:31:41,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-17 23:31:41,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:41,310 INFO L225 Difference]: With dead ends: 2190 [2022-03-17 23:31:41,310 INFO L226 Difference]: Without dead ends: 1109 [2022-03-17 23:31:41,311 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 23:31:41,312 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:41,312 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 398 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 23:31:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-03-17 23:31:41,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2022-03-17 23:31:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1104 states have (on average 1.451086956521739) internal successors, (1602), 1104 states have internal predecessors, (1602), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1606 transitions. [2022-03-17 23:31:41,332 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1606 transitions. Word has length 155 [2022-03-17 23:31:41,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:41,332 INFO L478 AbstractCegarLoop]: Abstraction has 1109 states and 1606 transitions. [2022-03-17 23:31:41,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1606 transitions. [2022-03-17 23:31:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:31:41,334 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:41,334 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] [2022-03-17 23:31:41,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:31:41,335 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1040554030, now seen corresponding path program 1 times [2022-03-17 23:31:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:41,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107637129] [2022-03-17 23:31:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:41,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:41,458 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 23:31:41,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:41,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107637129] [2022-03-17 23:31:41,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107637129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:41,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:41,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:31:41,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053167135] [2022-03-17 23:31:41,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:41,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:31:41,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:41,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:31:41,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:31:41,460 INFO L87 Difference]: Start difference. First operand 1109 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:43,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:43,000 INFO L93 Difference]: Finished difference Result 2732 states and 3976 transitions. [2022-03-17 23:31:43,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:31:43,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:31:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:43,006 INFO L225 Difference]: With dead ends: 2732 [2022-03-17 23:31:43,006 INFO L226 Difference]: Without dead ends: 1651 [2022-03-17 23:31:43,008 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 23:31:43,008 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:43,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-17 23:31:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2022-03-17 23:31:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2022-03-17 23:31:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1646 states have (on average 1.451397326852977) internal successors, (2389), 1646 states have internal predecessors, (2389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:43,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2393 transitions. [2022-03-17 23:31:43,034 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2393 transitions. Word has length 173 [2022-03-17 23:31:43,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:43,034 INFO L478 AbstractCegarLoop]: Abstraction has 1651 states and 2393 transitions. [2022-03-17 23:31:43,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:43,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2393 transitions. [2022-03-17 23:31:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-17 23:31:43,037 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:43,038 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 23:31:43,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:31:43,038 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:43,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:43,038 INFO L85 PathProgramCache]: Analyzing trace with hash -865236792, now seen corresponding path program 1 times [2022-03-17 23:31:43,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:43,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239932703] [2022-03-17 23:31:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:43,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:43,169 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 23:31:43,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:43,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239932703] [2022-03-17 23:31:43,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239932703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:43,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:43,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:31:43,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944778093] [2022-03-17 23:31:43,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:43,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:31:43,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:43,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:31:43,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:31:43,171 INFO L87 Difference]: Start difference. First operand 1651 states and 2393 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:44,745 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 23:31:46,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:48,259 WARN L534 Checker$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 23:31:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:48,711 INFO L93 Difference]: Finished difference Result 3784 states and 5503 transitions. [2022-03-17 23:31:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:31:48,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-17 23:31:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:48,718 INFO L225 Difference]: With dead ends: 3784 [2022-03-17 23:31:48,718 INFO L226 Difference]: Without dead ends: 2161 [2022-03-17 23:31:48,721 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 23:31:48,721 INFO L912 BasicCegarLoop]: 378 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:48,721 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 572 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 420 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:31:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2022-03-17 23:31:48,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2161. [2022-03-17 23:31:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2156 states have (on average 1.4512987012987013) internal successors, (3129), 2156 states have internal predecessors, (3129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 3133 transitions. [2022-03-17 23:31:48,784 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 3133 transitions. Word has length 174 [2022-03-17 23:31:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:48,784 INFO L478 AbstractCegarLoop]: Abstraction has 2161 states and 3133 transitions. [2022-03-17 23:31:48,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 3133 transitions. [2022-03-17 23:31:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-17 23:31:48,790 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:48,790 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:31:48,790 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:31:48,790 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:48,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:48,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1896913379, now seen corresponding path program 1 times [2022-03-17 23:31:48,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:48,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483139106] [2022-03-17 23:31:48,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:48,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:48,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 23:31:48,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:48,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483139106] [2022-03-17 23:31:48,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483139106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:48,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:48,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:31:48,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913437993] [2022-03-17 23:31:48,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:48,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:31:48,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:48,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:31:48,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:31:48,935 INFO L87 Difference]: Start difference. First operand 2161 states and 3133 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 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 23:31:51,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:53,406 WARN L534 Checker$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 23:31:53,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:31:53,739 INFO L93 Difference]: Finished difference Result 4842 states and 7039 transitions. [2022-03-17 23:31:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:31:53,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 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 257 [2022-03-17 23:31:53,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:31:53,745 INFO L225 Difference]: With dead ends: 4842 [2022-03-17 23:31:53,745 INFO L226 Difference]: Without dead ends: 2709 [2022-03-17 23:31:53,747 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 23:31:53,748 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 151 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:31:53,748 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 250 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:31:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2022-03-17 23:31:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2022-03-17 23:31:53,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2704 states have (on average 1.4530325443786982) internal successors, (3929), 2704 states have internal predecessors, (3929), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3933 transitions. [2022-03-17 23:31:53,793 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3933 transitions. Word has length 257 [2022-03-17 23:31:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:31:53,793 INFO L478 AbstractCegarLoop]: Abstraction has 2709 states and 3933 transitions. [2022-03-17 23:31:53,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 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 23:31:53,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3933 transitions. [2022-03-17 23:31:53,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-17 23:31:53,798 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:31:53,798 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] [2022-03-17 23:31:53,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:31:53,798 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:31:53,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:31:53,799 INFO L85 PathProgramCache]: Analyzing trace with hash 503424760, now seen corresponding path program 1 times [2022-03-17 23:31:53,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:31:53,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114285910] [2022-03-17 23:31:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:31:53,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:31:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:31:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:31:53,958 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 23:31:53,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:31:53,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114285910] [2022-03-17 23:31:53,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114285910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:31:53,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:31:53,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:31:53,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415282320] [2022-03-17 23:31:53,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:31:53,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:31:53,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:31:53,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:31:53,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:31:53,960 INFO L87 Difference]: Start difference. First operand 2709 states and 3933 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:31:55,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:31:56,667 WARN L534 Checker$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 23:31:58,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:00,440 WARN L534 Checker$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 23:32:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:00,909 INFO L93 Difference]: Finished difference Result 5743 states and 8310 transitions. [2022-03-17 23:32:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-03-17 23:32:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:00,918 INFO L225 Difference]: With dead ends: 5743 [2022-03-17 23:32:00,919 INFO L226 Difference]: Without dead ends: 3062 [2022-03-17 23:32:00,922 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 23:32:00,922 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 49 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:00,922 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 629 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:32:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-03-17 23:32:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2914. [2022-03-17 23:32:00,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2909 states have (on average 1.450326572705397) internal successors, (4219), 2909 states have internal predecessors, (4219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 4223 transitions. [2022-03-17 23:32:00,968 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 4223 transitions. Word has length 298 [2022-03-17 23:32:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:00,968 INFO L478 AbstractCegarLoop]: Abstraction has 2914 states and 4223 transitions. [2022-03-17 23:32:00,968 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 4223 transitions. [2022-03-17 23:32:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-03-17 23:32:00,973 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:00,973 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] [2022-03-17 23:32:00,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:32:00,974 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:00,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1861311687, now seen corresponding path program 1 times [2022-03-17 23:32:00,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:00,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446213734] [2022-03-17 23:32:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:00,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:01,155 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 23:32:01,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:01,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446213734] [2022-03-17 23:32:01,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446213734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:01,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:01,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:01,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641197265] [2022-03-17 23:32:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:01,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:01,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:01,158 INFO L87 Difference]: Start difference. First operand 2914 states and 4223 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:02,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:04,482 WARN L534 Checker$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 23:32:06,506 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 23:32:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:06,958 INFO L93 Difference]: Finished difference Result 6384 states and 9270 transitions. [2022-03-17 23:32:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:06,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-03-17 23:32:06,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:06,989 INFO L225 Difference]: With dead ends: 6384 [2022-03-17 23:32:06,989 INFO L226 Difference]: Without dead ends: 3498 [2022-03-17 23:32:06,991 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 23:32:06,992 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:06,992 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 578 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 427 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:32:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2022-03-17 23:32:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 3498. [2022-03-17 23:32:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3493 states have (on average 1.450042943028915) internal successors, (5065), 3493 states have internal predecessors, (5065), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5069 transitions. [2022-03-17 23:32:07,044 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5069 transitions. Word has length 298 [2022-03-17 23:32:07,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:07,045 INFO L478 AbstractCegarLoop]: Abstraction has 3498 states and 5069 transitions. [2022-03-17 23:32:07,045 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:07,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5069 transitions. [2022-03-17 23:32:07,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-03-17 23:32:07,051 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:07,051 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 23:32:07,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:32:07,051 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:07,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1063867079, now seen corresponding path program 1 times [2022-03-17 23:32:07,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:07,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677280775] [2022-03-17 23:32:07,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:07,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:07,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:07,280 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 23:32:07,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:07,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677280775] [2022-03-17 23:32:07,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677280775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:07,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:07,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:07,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042571977] [2022-03-17 23:32:07,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:07,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:07,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:07,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:07,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:07,282 INFO L87 Difference]: Start difference. First operand 3498 states and 5069 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:09,290 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 23:32:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:09,749 INFO L93 Difference]: Finished difference Result 7520 states and 10915 transitions. [2022-03-17 23:32:09,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:09,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 299 [2022-03-17 23:32:09,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:09,756 INFO L225 Difference]: With dead ends: 7520 [2022-03-17 23:32:09,756 INFO L226 Difference]: Without dead ends: 4050 [2022-03-17 23:32:09,760 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 23:32:09,761 INFO L912 BasicCegarLoop]: 384 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:09,761 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 578 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 426 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:32:09,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-03-17 23:32:09,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 4050. [2022-03-17 23:32:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 4045 states have (on average 1.4496909765142152) internal successors, (5864), 4045 states have internal predecessors, (5864), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:09,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5868 transitions. [2022-03-17 23:32:09,857 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5868 transitions. Word has length 299 [2022-03-17 23:32:09,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:09,857 INFO L478 AbstractCegarLoop]: Abstraction has 4050 states and 5868 transitions. [2022-03-17 23:32:09,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:09,857 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5868 transitions. [2022-03-17 23:32:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-03-17 23:32:09,864 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:09,864 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:32:09,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:32:09,864 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash -836812725, now seen corresponding path program 1 times [2022-03-17 23:32:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:09,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496235880] [2022-03-17 23:32:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:09,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:10,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2022-03-17 23:32:10,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:10,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496235880] [2022-03-17 23:32:10,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496235880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:10,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:10,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:32:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558377433] [2022-03-17 23:32:10,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:10,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:32:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:10,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:32:10,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:32:10,079 INFO L87 Difference]: Start difference. First operand 4050 states and 5868 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:11,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:13,703 WARN L534 Checker$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 23:32:15,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:15,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:15,622 INFO L93 Difference]: Finished difference Result 8661 states and 12567 transitions. [2022-03-17 23:32:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:32:15,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 384 [2022-03-17 23:32:15,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:15,628 INFO L225 Difference]: With dead ends: 8661 [2022-03-17 23:32:15,628 INFO L226 Difference]: Without dead ends: 4639 [2022-03-17 23:32:15,632 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 23:32:15,632 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 150 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:15,632 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 379 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:32:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-03-17 23:32:15,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4639. [2022-03-17 23:32:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4634 states have (on average 1.451230038843332) internal successors, (6725), 4634 states have internal predecessors, (6725), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:15,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 6729 transitions. [2022-03-17 23:32:15,749 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 6729 transitions. Word has length 384 [2022-03-17 23:32:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:15,750 INFO L478 AbstractCegarLoop]: Abstraction has 4639 states and 6729 transitions. [2022-03-17 23:32:15,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 6729 transitions. [2022-03-17 23:32:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-03-17 23:32:15,757 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:15,758 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] [2022-03-17 23:32:15,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:32:15,758 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash 909790957, now seen corresponding path program 1 times [2022-03-17 23:32:15,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:15,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91976266] [2022-03-17 23:32:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:15,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 921 proven. 330 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-03-17 23:32:16,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:16,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91976266] [2022-03-17 23:32:16,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91976266] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:32:16,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158084887] [2022-03-17 23:32:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:16,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:32:16,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:32:16,360 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 23:32:16,387 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 23:32:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:17,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-17 23:32:17,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:32:17,492 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:32:17,494 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 23:32:17,614 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:32:17,614 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 23:32:17,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:32:17,963 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 23:32:18,005 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 23:32:18,011 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 23:32:18,040 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-17 23:32:18,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 23:32:18,088 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:32:18,089 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 23:32:18,346 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:32:18,346 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 23:32:18,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 950 proven. 126 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-03-17 23:32:18,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:32:18,890 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 23:32:18,893 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 23:32:22,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2022-03-17 23:32:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1565 backedges. 948 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-03-17 23:32:23,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158084887] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:32:23,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:32:23,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 13] total 23 [2022-03-17 23:32:23,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147572346] [2022-03-17 23:32:23,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:23,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:32:23,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:23,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:32:23,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=438, Unknown=1, NotChecked=0, Total=506 [2022-03-17 23:32:23,133 INFO L87 Difference]: Start difference. First operand 4639 states and 6729 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 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 23:32:24,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:26,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:35,884 INFO L93 Difference]: Finished difference Result 11901 states and 17269 transitions. [2022-03-17 23:32:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:32:35,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 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 426 [2022-03-17 23:32:35,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:35,897 INFO L225 Difference]: With dead ends: 11901 [2022-03-17 23:32:35,898 INFO L226 Difference]: Without dead ends: 7290 [2022-03-17 23:32:35,905 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=98, Invalid=601, Unknown=3, NotChecked=0, Total=702 [2022-03-17 23:32:35,906 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 270 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 86 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 190 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:35,906 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 971 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 614 Invalid, 1 Unknown, 190 Unchecked, 4.5s Time] [2022-03-17 23:32:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2022-03-17 23:32:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 6393. [2022-03-17 23:32:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6393 states, 6388 states have (on average 1.4600814026299311) internal successors, (9327), 6388 states have internal predecessors, (9327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6393 states to 6393 states and 9331 transitions. [2022-03-17 23:32:36,055 INFO L78 Accepts]: Start accepts. Automaton has 6393 states and 9331 transitions. Word has length 426 [2022-03-17 23:32:36,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:36,055 INFO L478 AbstractCegarLoop]: Abstraction has 6393 states and 9331 transitions. [2022-03-17 23:32:36,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 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 23:32:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 6393 states and 9331 transitions. [2022-03-17 23:32:36,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-03-17 23:32:36,065 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:36,065 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, 5, 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] [2022-03-17 23:32:36,099 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 23:32:36,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-03-17 23:32:36,276 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:36,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:36,276 INFO L85 PathProgramCache]: Analyzing trace with hash 972462257, now seen corresponding path program 1 times [2022-03-17 23:32:36,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:36,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033751918] [2022-03-17 23:32:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 1008 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-03-17 23:32:36,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:36,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033751918] [2022-03-17 23:32:36,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033751918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:36,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:36,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581310621] [2022-03-17 23:32:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:36,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:36,524 INFO L87 Difference]: Start difference. First operand 6393 states and 9331 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 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 23:32:38,891 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 23:32:40,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:41,493 WARN L534 Checker$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 23:32:42,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:42,082 INFO L93 Difference]: Finished difference Result 13071 states and 19017 transitions. [2022-03-17 23:32:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:42,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 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 428 [2022-03-17 23:32:42,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:42,094 INFO L225 Difference]: With dead ends: 13071 [2022-03-17 23:32:42,094 INFO L226 Difference]: Without dead ends: 6706 [2022-03-17 23:32:42,102 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 23:32:42,103 INFO L912 BasicCegarLoop]: 256 mSDtfsCounter, 47 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:42,103 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 627 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:32:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2022-03-17 23:32:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6401. [2022-03-17 23:32:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4595059412132583) internal successors, (9335), 6396 states have internal predecessors, (9335), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9339 transitions. [2022-03-17 23:32:42,251 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9339 transitions. Word has length 428 [2022-03-17 23:32:42,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:42,252 INFO L478 AbstractCegarLoop]: Abstraction has 6401 states and 9339 transitions. [2022-03-17 23:32:42,252 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 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 23:32:42,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9339 transitions. [2022-03-17 23:32:42,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-03-17 23:32:42,262 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:42,262 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 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, 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] [2022-03-17 23:32:42,262 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:32:42,262 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:42,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1597716625, now seen corresponding path program 1 times [2022-03-17 23:32:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:42,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132289419] [2022-03-17 23:32:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1114 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-03-17 23:32:42,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:42,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132289419] [2022-03-17 23:32:42,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132289419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:42,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:42,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623907557] [2022-03-17 23:32:42,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:42,509 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:42,509 INFO L87 Difference]: Start difference. First operand 6401 states and 9339 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:44,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:46,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:48,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:50,291 WARN L534 Checker$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 23:32:50,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:50,888 INFO L93 Difference]: Finished difference Result 13079 states and 19017 transitions. [2022-03-17 23:32:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:50,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 470 [2022-03-17 23:32:50,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:50,899 INFO L225 Difference]: With dead ends: 13079 [2022-03-17 23:32:50,900 INFO L226 Difference]: Without dead ends: 6706 [2022-03-17 23:32:50,909 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 23:32:50,909 INFO L912 BasicCegarLoop]: 255 mSDtfsCounter, 66 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:50,909 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 625 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 532 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-03-17 23:32:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2022-03-17 23:32:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 6401. [2022-03-17 23:32:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4576297686053783) internal successors, (9323), 6396 states have internal predecessors, (9323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:51,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9327 transitions. [2022-03-17 23:32:51,054 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9327 transitions. Word has length 470 [2022-03-17 23:32:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:51,054 INFO L478 AbstractCegarLoop]: Abstraction has 6401 states and 9327 transitions. [2022-03-17 23:32:51,055 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9327 transitions. [2022-03-17 23:32:51,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-03-17 23:32:51,064 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:51,065 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 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, 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] [2022-03-17 23:32:51,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:32:51,065 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash -872562479, now seen corresponding path program 1 times [2022-03-17 23:32:51,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:51,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143013284] [2022-03-17 23:32:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:51,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:32:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:32:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1978 backedges. 1127 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-03-17 23:32:51,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:32:51,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143013284] [2022-03-17 23:32:51,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143013284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:32:51,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:32:51,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:32:51,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798009727] [2022-03-17 23:32:51,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:32:51,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:32:51,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:32:51,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:32:51,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:32:51,321 INFO L87 Difference]: Start difference. First operand 6401 states and 9327 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 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 23:32:52,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:54,749 WARN L534 Checker$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 23:32:56,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:58,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:32:59,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:32:59,408 INFO L93 Difference]: Finished difference Result 13031 states and 18927 transitions. [2022-03-17 23:32:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:32:59,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 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 472 [2022-03-17 23:32:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:32:59,424 INFO L225 Difference]: With dead ends: 13031 [2022-03-17 23:32:59,425 INFO L226 Difference]: Without dead ends: 6658 [2022-03-17 23:32:59,431 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 23:32:59,431 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 60 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:32:59,431 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 617 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 515 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-17 23:32:59,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6658 states. [2022-03-17 23:32:59,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6658 to 6401. [2022-03-17 23:32:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6396 states have (on average 1.4557535959974985) internal successors, (9311), 6396 states have internal predecessors, (9311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:32:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 9315 transitions. [2022-03-17 23:32:59,666 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 9315 transitions. Word has length 472 [2022-03-17 23:32:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:32:59,666 INFO L478 AbstractCegarLoop]: Abstraction has 6401 states and 9315 transitions. [2022-03-17 23:32:59,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 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 23:32:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 9315 transitions. [2022-03-17 23:32:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2022-03-17 23:32:59,697 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:32:59,697 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:32:59,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:32:59,698 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:32:59,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:32:59,698 INFO L85 PathProgramCache]: Analyzing trace with hash -128117199, now seen corresponding path program 1 times [2022-03-17 23:32:59,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:32:59,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353165678] [2022-03-17 23:32:59,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:32:59,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:32:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1238 proven. 46 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2022-03-17 23:33:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:00,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353165678] [2022-03-17 23:33:00,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353165678] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:33:00,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219814286] [2022-03-17 23:33:00,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:00,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:33:00,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:33:00,016 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 23:33:00,019 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 23:33:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:00,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 23:33:00,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:33:01,051 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:33:01,051 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 23:33:01,095 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:33:01,095 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 23:33:01,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:33:01,307 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:33:01,307 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 23:33:01,385 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 23:33:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1233 proven. 126 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-03-17 23:33:01,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:33:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 1254 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-03-17 23:33:02,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219814286] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:33:02,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:33:02,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-17 23:33:02,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702991210] [2022-03-17 23:33:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:33:02,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:33:02,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:02,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:33:02,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:33:02,273 INFO L87 Difference]: Start difference. First operand 6401 states and 9315 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 23:33:03,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:04,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:04,184 INFO L93 Difference]: Finished difference Result 13483 states and 19567 transitions. [2022-03-17 23:33:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:33:04,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 472 [2022-03-17 23:33:04,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:04,192 INFO L225 Difference]: With dead ends: 13483 [2022-03-17 23:33:04,192 INFO L226 Difference]: Without dead ends: 7110 [2022-03-17 23:33:04,203 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 954 GetRequests, 944 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:33:04,203 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 104 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:04,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 489 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 23:33:04,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2022-03-17 23:33:04,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 6408. [2022-03-17 23:33:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6408 states, 6403 states have (on average 1.454005934718101) internal successors, (9310), 6403 states have internal predecessors, (9310), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:04,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6408 states to 6408 states and 9314 transitions. [2022-03-17 23:33:04,376 INFO L78 Accepts]: Start accepts. Automaton has 6408 states and 9314 transitions. Word has length 472 [2022-03-17 23:33:04,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:04,376 INFO L478 AbstractCegarLoop]: Abstraction has 6408 states and 9314 transitions. [2022-03-17 23:33:04,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 23:33:04,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6408 states and 9314 transitions. [2022-03-17 23:33:04,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-03-17 23:33:04,387 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:04,387 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:33:04,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 23:33:04,607 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,SelfDestructingSolverStorable49 [2022-03-17 23:33:04,607 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1834067689, now seen corresponding path program 1 times [2022-03-17 23:33:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:04,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560562994] [2022-03-17 23:33:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2011 backedges. 1185 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2022-03-17 23:33:04,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:04,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560562994] [2022-03-17 23:33:04,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560562994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:33:04,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:33:04,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:33:04,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062129780] [2022-03-17 23:33:04,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:33:04,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:33:04,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:04,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:33:04,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:33:04,854 INFO L87 Difference]: Start difference. First operand 6408 states and 9314 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:06,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:07,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:09,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:10,193 INFO L93 Difference]: Finished difference Result 13258 states and 19258 transitions. [2022-03-17 23:33:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:33:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-03-17 23:33:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:10,200 INFO L225 Difference]: With dead ends: 13258 [2022-03-17 23:33:10,200 INFO L226 Difference]: Without dead ends: 6878 [2022-03-17 23:33:10,204 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 23:33:10,204 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 27 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:10,205 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 591 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:33:10,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6878 states. [2022-03-17 23:33:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6878 to 6720. [2022-03-17 23:33:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6720 states, 6715 states have (on average 1.4525688756515265) internal successors, (9754), 6715 states have internal predecessors, (9754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6720 states to 6720 states and 9758 transitions. [2022-03-17 23:33:10,379 INFO L78 Accepts]: Start accepts. Automaton has 6720 states and 9758 transitions. Word has length 474 [2022-03-17 23:33:10,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:10,380 INFO L478 AbstractCegarLoop]: Abstraction has 6720 states and 9758 transitions. [2022-03-17 23:33:10,380 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6720 states and 9758 transitions. [2022-03-17 23:33:10,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-17 23:33:10,390 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:10,390 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:33:10,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 23:33:10,407 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:10,408 INFO L85 PathProgramCache]: Analyzing trace with hash 895560963, now seen corresponding path program 1 times [2022-03-17 23:33:10,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46680913] [2022-03-17 23:33:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1059 proven. 854 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-17 23:33:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46680913] [2022-03-17 23:33:11,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46680913] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:33:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083924290] [2022-03-17 23:33:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:11,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:33:11,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:33:11,211 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 23:33:11,212 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 23:33:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:12,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-17 23:33:12,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:33:12,266 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:33:12,267 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 23:33:12,323 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:33:12,323 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 23:33:12,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 23:33:12,451 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 23:33:12,454 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 23:33:12,471 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-17 23:33:12,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-17 23:33:12,538 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-17 23:33:12,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-03-17 23:33:12,619 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:33:12,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-17 23:33:14,759 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:33:14,760 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 23:33:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1281 proven. 68 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-03-17 23:33:15,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:33:15,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-17 23:33:15,759 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-17 23:33:19,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2022-03-17 23:33:19,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-03-17 23:33:19,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 64 [2022-03-17 23:33:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1304 proven. 27 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-03-17 23:33:19,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083924290] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:33:19,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:33:19,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 7] total 21 [2022-03-17 23:33:19,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47803889] [2022-03-17 23:33:19,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:33:19,560 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-17 23:33:19,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-17 23:33:19,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=354, Unknown=2, NotChecked=0, Total=420 [2022-03-17 23:33:19,561 INFO L87 Difference]: Start difference. First operand 6720 states and 9758 transitions. Second operand has 21 states, 21 states have (on average 19.333333333333332) internal successors, (406), 20 states have internal predecessors, (406), 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 23:33:21,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:23,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:25,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:27,428 WARN L534 Checker$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 23:33:28,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:30,777 WARN L534 Checker$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 23:33:32,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:34,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:36,870 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 23:33:49,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:49,272 INFO L93 Difference]: Finished difference Result 19886 states and 28692 transitions. [2022-03-17 23:33:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-17 23:33:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 19.333333333333332) internal successors, (406), 20 states have internal predecessors, (406), 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 484 [2022-03-17 23:33:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:49,284 INFO L225 Difference]: With dead ends: 19886 [2022-03-17 23:33:49,284 INFO L226 Difference]: Without dead ends: 13194 [2022-03-17 23:33:49,289 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 985 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=252, Invalid=1302, Unknown=6, NotChecked=0, Total=1560 [2022-03-17 23:33:49,289 INFO L912 BasicCegarLoop]: 371 mSDtfsCounter, 1227 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 4210 mSolverCounterSat, 333 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 4210 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 519 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:49,289 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 4225 Invalid, 5067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 4210 Invalid, 5 Unknown, 519 Unchecked, 21.2s Time] [2022-03-17 23:33:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13194 states. [2022-03-17 23:33:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13194 to 7754. [2022-03-17 23:33:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.4502516453735965) internal successors, (11238), 7749 states have internal predecessors, (11238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 11242 transitions. [2022-03-17 23:33:49,461 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 11242 transitions. Word has length 484 [2022-03-17 23:33:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:49,462 INFO L478 AbstractCegarLoop]: Abstraction has 7754 states and 11242 transitions. [2022-03-17 23:33:49,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 19.333333333333332) internal successors, (406), 20 states have internal predecessors, (406), 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 23:33:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 11242 transitions. [2022-03-17 23:33:49,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-17 23:33:49,472 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:49,472 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:33:49,502 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 23:33:49,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:33:49,691 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:49,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1405695153, now seen corresponding path program 1 times [2022-03-17 23:33:49,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:49,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912926443] [2022-03-17 23:33:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:49,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:49,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 1210 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2022-03-17 23:33:49,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:49,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912926443] [2022-03-17 23:33:49,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912926443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:33:49,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:33:49,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:33:49,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765809272] [2022-03-17 23:33:49,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:33:49,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:33:49,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:49,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:33:49,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:33:49,934 INFO L87 Difference]: Start difference. First operand 7754 states and 11242 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:52,930 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 23:33:54,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:33:56,848 WARN L534 Checker$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 23:33:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:33:57,350 INFO L93 Difference]: Finished difference Result 15776 states and 22872 transitions. [2022-03-17 23:33:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:33:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-17 23:33:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:33:57,360 INFO L225 Difference]: With dead ends: 15776 [2022-03-17 23:33:57,361 INFO L226 Difference]: Without dead ends: 8050 [2022-03-17 23:33:57,368 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 23:33:57,368 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:33:57,368 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 576 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:33:57,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8050 states. [2022-03-17 23:33:57,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8050 to 7754. [2022-03-17 23:33:57,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 7749 states have (on average 1.4484449606400827) internal successors, (11224), 7749 states have internal predecessors, (11224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:57,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 11228 transitions. [2022-03-17 23:33:57,552 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 11228 transitions. Word has length 484 [2022-03-17 23:33:57,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:33:57,553 INFO L478 AbstractCegarLoop]: Abstraction has 7754 states and 11228 transitions. [2022-03-17 23:33:57,553 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 11228 transitions. [2022-03-17 23:33:57,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-17 23:33:57,563 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:33:57,563 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:33:57,563 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 23:33:57,563 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:33:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:33:57,564 INFO L85 PathProgramCache]: Analyzing trace with hash -894388527, now seen corresponding path program 1 times [2022-03-17 23:33:57,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:33:57,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533313671] [2022-03-17 23:33:57,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:33:57,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:33:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:33:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:33:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 1280 proven. 0 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2022-03-17 23:33:57,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:33:57,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533313671] [2022-03-17 23:33:57,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533313671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:33:57,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:33:57,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:33:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569668221] [2022-03-17 23:33:57,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:33:57,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:33:57,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:33:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:33:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:33:57,768 INFO L87 Difference]: Start difference. First operand 7754 states and 11228 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:33:58,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:00,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:02,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:03,645 INFO L93 Difference]: Finished difference Result 16182 states and 23404 transitions. [2022-03-17 23:34:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:03,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-17 23:34:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:03,653 INFO L225 Difference]: With dead ends: 16182 [2022-03-17 23:34:03,653 INFO L226 Difference]: Without dead ends: 8456 [2022-03-17 23:34:03,659 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 23:34:03,659 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 32 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:03,660 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 597 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:34:03,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2022-03-17 23:34:03,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 8202. [2022-03-17 23:34:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8202 states, 8197 states have (on average 1.447846773209711) internal successors, (11868), 8197 states have internal predecessors, (11868), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:03,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8202 states to 8202 states and 11872 transitions. [2022-03-17 23:34:03,835 INFO L78 Accepts]: Start accepts. Automaton has 8202 states and 11872 transitions. Word has length 484 [2022-03-17 23:34:03,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:03,835 INFO L478 AbstractCegarLoop]: Abstraction has 8202 states and 11872 transitions. [2022-03-17 23:34:03,835 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 8202 states and 11872 transitions. [2022-03-17 23:34:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-17 23:34:03,843 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:03,843 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:03,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 23:34:03,844 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1692367487, now seen corresponding path program 1 times [2022-03-17 23:34:03,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:03,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218407293] [2022-03-17 23:34:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:03,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 59 proven. 2013 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-03-17 23:34:06,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:06,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218407293] [2022-03-17 23:34:06,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218407293] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:34:06,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472321367] [2022-03-17 23:34:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:06,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:34:06,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:34:06,353 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 23:34:06,353 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 23:34:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:07,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 2215 conjuncts, 102 conjunts are in the unsatisfiable core [2022-03-17 23:34:07,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:34:07,538 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:34:07,538 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 23:34:07,655 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:34:07,656 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 23:34:07,778 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 23:34:07,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:34:08,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-17 23:34:08,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:34:08,148 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:34:08,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:34:08,157 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:34:08,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-17 23:34:08,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:34:08,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,766 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:34:08,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:34:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,770 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 23:34:08,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,832 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 23:34:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,861 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:34:08,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:34:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:08,865 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 23:34:09,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:09,518 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:34:09,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:34:09,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:09,554 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:34:09,554 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 23:34:09,604 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-17 23:34:09,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-17 23:34:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,790 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-17 23:34:10,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 270 [2022-03-17 23:34:10,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:10,802 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 273 treesize of output 225 [2022-03-17 23:34:10,843 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-17 23:34:10,843 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 273 treesize of output 225 [2022-03-17 23:34:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,291 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 222 treesize of output 182 [2022-03-17 23:34:13,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,298 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 222 treesize of output 182 [2022-03-17 23:34:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,324 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:34:13,324 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 222 treesize of output 240 [2022-03-17 23:34:13,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 109 [2022-03-17 23:34:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,566 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 117 treesize of output 69 [2022-03-17 23:34:13,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:34:13,586 INFO L356 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2022-03-17 23:34:13,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 59 [2022-03-17 23:34:13,668 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:34:13,668 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 23:34:13,805 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:34:13,805 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 23:34:13,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 991 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-03-17 23:34:13,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:34:16,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:34:16,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:34:16,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-03-17 23:34:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1133 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-03-17 23:34:19,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472321367] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:34:19,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:34:19,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 13] total 50 [2022-03-17 23:34:19,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923971644] [2022-03-17 23:34:19,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:34:19,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-17 23:34:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:19,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-17 23:34:19,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=2177, Unknown=1, NotChecked=0, Total=2450 [2022-03-17 23:34:19,333 INFO L87 Difference]: Start difference. First operand 8202 states and 11872 transitions. Second operand has 50 states, 49 states have (on average 15.857142857142858) internal successors, (777), 48 states have internal predecessors, (777), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:21,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:23,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:25,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:27,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:29,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:31,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:34,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:36,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:38,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:39,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:40,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:43,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:05,924 INFO L93 Difference]: Finished difference Result 42972 states and 61379 transitions. [2022-03-17 23:35:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-17 23:35:05,925 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 15.857142857142858) internal successors, (777), 48 states have internal predecessors, (777), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-17 23:35:05,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:05,964 INFO L225 Difference]: With dead ends: 42972 [2022-03-17 23:35:05,965 INFO L226 Difference]: Without dead ends: 34777 [2022-03-17 23:35:05,983 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1224 GetRequests, 1040 SyntacticMatches, 10 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10316 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=2926, Invalid=27873, Unknown=1, NotChecked=0, Total=30800 [2022-03-17 23:35:05,983 INFO L912 BasicCegarLoop]: 584 mSDtfsCounter, 2637 mSDsluCounter, 14313 mSDsCounter, 0 mSdLazyCounter, 15701 mSolverCounterSat, 483 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 14897 SdHoareTripleChecker+Invalid, 18769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 15701 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 2579 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:05,984 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [2637 Valid, 14897 Invalid, 18769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 15701 Invalid, 6 Unknown, 2579 Unchecked, 38.4s Time] [2022-03-17 23:35:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34777 states. [2022-03-17 23:35:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34777 to 22669. [2022-03-17 23:35:06,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22669 states, 22664 states have (on average 1.450891281327215) internal successors, (32883), 22664 states have internal predecessors, (32883), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22669 states to 22669 states and 32887 transitions. [2022-03-17 23:35:06,698 INFO L78 Accepts]: Start accepts. Automaton has 22669 states and 32887 transitions. Word has length 484 [2022-03-17 23:35:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:06,698 INFO L478 AbstractCegarLoop]: Abstraction has 22669 states and 32887 transitions. [2022-03-17 23:35:06,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 15.857142857142858) internal successors, (777), 48 states have internal predecessors, (777), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 22669 states and 32887 transitions. [2022-03-17 23:35:06,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-03-17 23:35:06,720 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:06,721 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:06,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-17 23:35:06,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:35:06,923 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:06,924 INFO L85 PathProgramCache]: Analyzing trace with hash 333843097, now seen corresponding path program 1 times [2022-03-17 23:35:06,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:06,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219126206] [2022-03-17 23:35:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:06,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1557 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-03-17 23:35:07,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:07,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219126206] [2022-03-17 23:35:07,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219126206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:07,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:07,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:35:07,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940616921] [2022-03-17 23:35:07,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:07,136 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:35:07,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:07,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:35:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:35:07,136 INFO L87 Difference]: Start difference. First operand 22669 states and 32887 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:08,370 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 23:35:10,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:12,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:13,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:13,134 INFO L93 Difference]: Finished difference Result 52526 states and 75827 transitions. [2022-03-17 23:35:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:35:13,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 485 [2022-03-17 23:35:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:13,161 INFO L225 Difference]: With dead ends: 52526 [2022-03-17 23:35:13,161 INFO L226 Difference]: Without dead ends: 29885 [2022-03-17 23:35:13,178 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 23:35:13,178 INFO L912 BasicCegarLoop]: 375 mSDtfsCounter, 136 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:13,178 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 587 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:35:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29885 states. [2022-03-17 23:35:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29885 to 29883. [2022-03-17 23:35:13,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29883 states, 29878 states have (on average 1.4371109177321106) internal successors, (42938), 29878 states have internal predecessors, (42938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29883 states to 29883 states and 42942 transitions. [2022-03-17 23:35:13,970 INFO L78 Accepts]: Start accepts. Automaton has 29883 states and 42942 transitions. Word has length 485 [2022-03-17 23:35:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:13,971 INFO L478 AbstractCegarLoop]: Abstraction has 29883 states and 42942 transitions. [2022-03-17 23:35:13,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 3 states have internal predecessors, (196), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 29883 states and 42942 transitions. [2022-03-17 23:35:14,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-03-17 23:35:14,017 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:14,018 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:35:14,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-17 23:35:14,018 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:14,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash 58098956, now seen corresponding path program 1 times [2022-03-17 23:35:14,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:14,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034414548] [2022-03-17 23:35:14,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:14,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:17,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 407 proven. 1719 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:35:17,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:17,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034414548] [2022-03-17 23:35:17,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034414548] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:35:17,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019522654] [2022-03-17 23:35:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:17,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:35:17,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:35:17,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:35:17,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 23:35:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:18,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 2296 conjuncts, 103 conjunts are in the unsatisfiable core [2022-03-17 23:35:18,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:35:18,937 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:35:18,937 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 23:35:19,091 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:35:19,092 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 23:35:19,196 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 23:35:19,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:35:19,535 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:35:19,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:35:19,546 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:35:19,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:35:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:19,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:35:19,577 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:35:19,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:35:19,584 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:35:19,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-03-17 23:35:20,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:35:20,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,147 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:35:20,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:35:20,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 23:35:20,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,252 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:35:20,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:35:20,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,258 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 23:35:20,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,261 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 23:35:20,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,910 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:35:20,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:35:20,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:20,944 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:35:20,944 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 23:35:20,988 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-17 23:35:20,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-17 23:35:22,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,418 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-03-17 23:35:22,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 294 treesize of output 319 [2022-03-17 23:35:22,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:22,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 268 [2022-03-17 23:35:22,469 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-17 23:35:22,470 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 322 treesize of output 250 [2022-03-17 23:35:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,102 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 289 treesize of output 219 [2022-03-17 23:35:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,121 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 289 treesize of output 237 [2022-03-17 23:35:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,143 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:35:26,143 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 289 treesize of output 289 [2022-03-17 23:35:26,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,355 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 163 treesize of output 109 [2022-03-17 23:35:26,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:26,359 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 117 treesize of output 69 [2022-03-17 23:35:26,384 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-03-17 23:35:26,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 84 [2022-03-17 23:35:26,460 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:35:26,460 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 23:35:26,586 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:35:26,586 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 23:35:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 992 proven. 445 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-03-17 23:35:26,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:35:29,378 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:29,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:29,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-17 23:35:29,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:29,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:29,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-17 23:35:51,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:51,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:51,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2022-03-17 23:35:51,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:51,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:35:51,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:35:51,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-17 23:35:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2137 backedges. 1134 proven. 141 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-03-17 23:35:51,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019522654] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:35:51,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:35:51,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 20, 14] total 59 [2022-03-17 23:35:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652029395] [2022-03-17 23:35:51,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:35:51,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-03-17 23:35:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:51,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-03-17 23:35:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=3123, Unknown=10, NotChecked=0, Total=3422 [2022-03-17 23:35:51,333 INFO L87 Difference]: Start difference. First operand 29883 states and 42942 transitions. Second operand has 59 states, 59 states have (on average 13.64406779661017) internal successors, (805), 58 states have internal predecessors, (805), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:53,355 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 []