/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.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:15:10,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:15:10,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:15:10,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:15:10,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:15:10,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:15:10,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:15:10,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:15:10,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:15:10,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:15:10,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:15:10,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:15:10,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:15:10,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:15:10,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:15:10,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:15:10,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:15:10,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:15:10,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:15:10,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:15:10,349 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:15:10,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:15:10,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:15:10,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:15:10,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:15:10,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:15:10,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:15:10,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:15:10,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:15:10,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:15:10,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 12:15:10,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:15:10,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:15:10,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:15:10,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:15:10,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:15:10,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:15:10,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:15:10,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:15:10,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:15:10,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:15:10,389 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:15:10,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:15:10,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:15:10,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:15:10,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:15:10,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:15:10,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:15:10,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:15:10,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:15:10,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:15:10,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:15:10,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:15:10,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:15:10,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:15:10,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:15:10,392 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:15:10,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:15:10,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:15:10,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:15:10,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:15:10,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:15:10,619 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:15:10,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-20 12:15:10,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7107de7/a512d42f954944ca9c7de34686ba7be2/FLAGe50848d48 [2022-03-20 12:15:11,098 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:15:11,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-20 12:15:11,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7107de7/a512d42f954944ca9c7de34686ba7be2/FLAGe50848d48 [2022-03-20 12:15:11,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7107de7/a512d42f954944ca9c7de34686ba7be2 [2022-03-20 12:15:11,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:15:11,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:15:11,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:15:11,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:15:11,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:15:11,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2471e73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11, skipping insertion in model container [2022-03-20 12:15:11,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:15:11,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:15:11,505 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.02.i.cil-2.c[72502,72515] [2022-03-20 12:15:11,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:15:11,523 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:15:11,615 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.02.i.cil-2.c[72502,72515] [2022-03-20 12:15:11,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:15:11,629 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:15:11,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11 WrapperNode [2022-03-20 12:15:11,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:15:11,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:15:11,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:15:11,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:15:11,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:15:11,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:15:11,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:15:11,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:15:11,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (1/1) ... [2022-03-20 12:15:11,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:15:11,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:15:11,769 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) [2022-03-20 12:15:11,787 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 [2022-03-20 12:15:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:15:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:15:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:15:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 12:15:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 12:15:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:15:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 12:15:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:15:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:15:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:15:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:15:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:15:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:15:11,942 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:15:11,944 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:15:14,216 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:15:14,629 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 12:15:14,629 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 12:15:14,670 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:15:14,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:15:14,676 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:15:14,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:15:14 BoogieIcfgContainer [2022-03-20 12:15:14,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:15:14,679 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:15:14,679 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:15:14,680 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:15:14,682 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:15:14" (1/1) ... [2022-03-20 12:15:14,683 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:15:14,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:15:14 BasicIcfg [2022-03-20 12:15:14,729 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:15:14,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:15:14,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:15:14,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:15:14,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:15:11" (1/4) ... [2022-03-20 12:15:14,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340cab00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:15:14, skipping insertion in model container [2022-03-20 12:15:14,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:15:11" (2/4) ... [2022-03-20 12:15:14,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340cab00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:15:14, skipping insertion in model container [2022-03-20 12:15:14,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:15:14" (3/4) ... [2022-03-20 12:15:14,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340cab00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:15:14, skipping insertion in model container [2022-03-20 12:15:14,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:15:14" (4/4) ... [2022-03-20 12:15:14,736 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.cqvasr [2022-03-20 12:15:14,743 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:15:14,743 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:15:14,783 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:15:14,789 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 [2022-03-20 12:15:14,789 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:15:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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) [2022-03-20 12:15:14,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-20 12:15:14,819 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:14,819 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:14,820 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:14,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1355699347, now seen corresponding path program 1 times [2022-03-20 12:15:14,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:14,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340091641] [2022-03-20 12:15:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:14,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:15,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340091641] [2022-03-20 12:15:15,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340091641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:15,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:15,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:15,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192568033] [2022-03-20 12:15:15,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:15,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:15,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:15,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:15,344 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:17,389 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 [] [2022-03-20 12:15:17,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:17,862 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-03-20 12:15:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:17,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-20 12:15:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:17,871 INFO L225 Difference]: With dead ends: 324 [2022-03-20 12:15:17,871 INFO L226 Difference]: Without dead ends: 165 [2022-03-20 12:15:17,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:17,875 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:17,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:17,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-20 12:15:17,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-03-20 12:15:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-03-20 12:15:17,910 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-03-20 12:15:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:17,910 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-03-20 12:15:17,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:17,911 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-03-20 12:15:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:15:17,912 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:17,912 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:17,913 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:15:17,913 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash -862448393, now seen corresponding path program 1 times [2022-03-20 12:15:17,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:17,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643378690] [2022-03-20 12:15:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:18,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:18,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:18,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643378690] [2022-03-20 12:15:18,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643378690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:18,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:18,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001372348] [2022-03-20 12:15:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:18,090 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:18,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:18,091 INFO L87 Difference]: Start difference. First operand 148 states and 224 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) [2022-03-20 12:15:20,101 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 [] [2022-03-20 12:15:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:20,498 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-03-20 12:15:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:20,499 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 [2022-03-20 12:15:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:20,500 INFO L225 Difference]: With dead ends: 287 [2022-03-20 12:15:20,500 INFO L226 Difference]: Without dead ends: 165 [2022-03-20 12:15:20,501 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:20,502 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:20,502 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:15:20,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-20 12:15:20,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-03-20 12:15:20,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:20,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-03-20 12:15:20,509 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-03-20 12:15:20,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:20,509 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-03-20 12:15:20,510 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) [2022-03-20 12:15:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-03-20 12:15:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:15:20,511 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:20,511 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:20,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:15:20,511 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:20,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:20,512 INFO L85 PathProgramCache]: Analyzing trace with hash 564743015, now seen corresponding path program 1 times [2022-03-20 12:15:20,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:20,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349567449] [2022-03-20 12:15:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:20,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:20,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349567449] [2022-03-20 12:15:20,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349567449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:20,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:20,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:20,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520652754] [2022-03-20 12:15:20,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:20,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:20,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:20,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:20,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:20,658 INFO L87 Difference]: Start difference. First operand 148 states and 223 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) [2022-03-20 12:15:22,667 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 [] [2022-03-20 12:15:22,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:22,989 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-03-20 12:15:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:22,990 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 [2022-03-20 12:15:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:22,991 INFO L225 Difference]: With dead ends: 286 [2022-03-20 12:15:22,991 INFO L226 Difference]: Without dead ends: 164 [2022-03-20 12:15:22,991 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:22,992 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:22,992 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:15:22,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-20 12:15:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-03-20 12:15:22,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:22,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-03-20 12:15:22,998 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-03-20 12:15:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:22,999 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-03-20 12:15:22,999 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) [2022-03-20 12:15:22,999 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-03-20 12:15:23,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:15:23,000 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:23,000 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:23,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:15:23,001 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 316443527, now seen corresponding path program 1 times [2022-03-20 12:15:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:23,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392552753] [2022-03-20 12:15:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:23,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:23,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:23,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392552753] [2022-03-20 12:15:23,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392552753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:23,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:23,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569982578] [2022-03-20 12:15:23,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:23,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:23,140 INFO L87 Difference]: Start difference. First operand 148 states and 222 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) [2022-03-20 12:15:25,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:27,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:29,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:30,440 INFO L93 Difference]: Finished difference Result 384 states and 584 transitions. [2022-03-20 12:15:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:30,441 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 [2022-03-20 12:15:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:30,442 INFO L225 Difference]: With dead ends: 384 [2022-03-20 12:15:30,442 INFO L226 Difference]: Without dead ends: 262 [2022-03-20 12:15:30,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:30,443 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 141 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:30,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 312 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 12:15:30,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-20 12:15:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 160. [2022-03-20 12:15:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 155 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2022-03-20 12:15:30,450 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 66 [2022-03-20 12:15:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:30,450 INFO L478 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2022-03-20 12:15:30,450 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) [2022-03-20 12:15:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2022-03-20 12:15:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:15:30,456 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:30,457 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:30,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:15:30,457 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:30,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1779536153, now seen corresponding path program 1 times [2022-03-20 12:15:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:30,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16859114] [2022-03-20 12:15:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:30,585 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:30,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:30,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16859114] [2022-03-20 12:15:30,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16859114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:30,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:30,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33255671] [2022-03-20 12:15:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:30,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:30,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:30,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:30,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:30,588 INFO L87 Difference]: Start difference. First operand 160 states and 239 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) [2022-03-20 12:15:32,619 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 [] [2022-03-20 12:15:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:32,960 INFO L93 Difference]: Finished difference Result 309 states and 462 transitions. [2022-03-20 12:15:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:32,960 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 [2022-03-20 12:15:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:32,961 INFO L225 Difference]: With dead ends: 309 [2022-03-20 12:15:32,961 INFO L226 Difference]: Without dead ends: 175 [2022-03-20 12:15:32,962 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:32,962 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:32,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 457 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:15:32,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-03-20 12:15:32,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 160. [2022-03-20 12:15:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5096774193548388) internal successors, (234), 155 states have internal predecessors, (234), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2022-03-20 12:15:32,972 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 66 [2022-03-20 12:15:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:32,972 INFO L478 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2022-03-20 12:15:32,973 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) [2022-03-20 12:15:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2022-03-20 12:15:32,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:15:32,973 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:32,973 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:32,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:15:32,974 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2004125753, now seen corresponding path program 1 times [2022-03-20 12:15:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:32,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951685657] [2022-03-20 12:15:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:33,125 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:33,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:33,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951685657] [2022-03-20 12:15:33,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951685657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:33,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:33,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:33,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578662926] [2022-03-20 12:15:33,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:33,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:33,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:33,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:33,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:33,130 INFO L87 Difference]: Start difference. First operand 160 states and 238 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) [2022-03-20 12:15:35,139 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 [] [2022-03-20 12:15:35,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:35,473 INFO L93 Difference]: Finished difference Result 307 states and 459 transitions. [2022-03-20 12:15:35,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:35,473 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 [2022-03-20 12:15:35,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:35,474 INFO L225 Difference]: With dead ends: 307 [2022-03-20 12:15:35,475 INFO L226 Difference]: Without dead ends: 173 [2022-03-20 12:15:35,475 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:35,476 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:35,476 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:15:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-03-20 12:15:35,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2022-03-20 12:15:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5032258064516129) internal successors, (233), 155 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 237 transitions. [2022-03-20 12:15:35,481 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 237 transitions. Word has length 66 [2022-03-20 12:15:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:35,482 INFO L478 AbstractCegarLoop]: Abstraction has 160 states and 237 transitions. [2022-03-20 12:15:35,482 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) [2022-03-20 12:15:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 237 transitions. [2022-03-20 12:15:35,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 12:15:35,482 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:35,483 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:35,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:15:35,483 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:35,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:35,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1564834441, now seen corresponding path program 1 times [2022-03-20 12:15:35,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:35,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022520369] [2022-03-20 12:15:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:35,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:35,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022520369] [2022-03-20 12:15:35,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022520369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:35,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:35,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:35,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913158802] [2022-03-20 12:15:35,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:35,588 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:35,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:35,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:35,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:35,589 INFO L87 Difference]: Start difference. First operand 160 states and 237 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) [2022-03-20 12:15:37,597 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 [] [2022-03-20 12:15:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:38,074 INFO L93 Difference]: Finished difference Result 396 states and 598 transitions. [2022-03-20 12:15:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:38,074 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 [2022-03-20 12:15:38,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:38,076 INFO L225 Difference]: With dead ends: 396 [2022-03-20 12:15:38,076 INFO L226 Difference]: Without dead ends: 262 [2022-03-20 12:15:38,076 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:38,077 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 139 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:38,077 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:15:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-20 12:15:38,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 161. [2022-03-20 12:15:38,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 156 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 237 transitions. [2022-03-20 12:15:38,082 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 237 transitions. Word has length 67 [2022-03-20 12:15:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:38,082 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 237 transitions. [2022-03-20 12:15:38,082 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) [2022-03-20 12:15:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 237 transitions. [2022-03-20 12:15:38,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 12:15:38,083 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:38,083 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:38,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:15:38,083 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash 214053259, now seen corresponding path program 1 times [2022-03-20 12:15:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:38,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979662484] [2022-03-20 12:15:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:38,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:38,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:38,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979662484] [2022-03-20 12:15:38,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979662484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:38,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:38,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:38,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263269383] [2022-03-20 12:15:38,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:38,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:38,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:38,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:38,192 INFO L87 Difference]: Start difference. First operand 161 states and 237 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:40,199 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 [] [2022-03-20 12:15:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:40,500 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2022-03-20 12:15:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:40,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 12:15:40,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:40,501 INFO L225 Difference]: With dead ends: 309 [2022-03-20 12:15:40,501 INFO L226 Difference]: Without dead ends: 174 [2022-03-20 12:15:40,502 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:40,502 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:40,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:15:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-03-20 12:15:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-03-20 12:15:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 156 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) [2022-03-20 12:15:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 236 transitions. [2022-03-20 12:15:40,507 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 236 transitions. Word has length 68 [2022-03-20 12:15:40,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:40,507 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 236 transitions. [2022-03-20 12:15:40,507 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 236 transitions. [2022-03-20 12:15:40,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 12:15:40,508 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:40,508 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:40,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:15:40,508 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:40,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash -498280966, now seen corresponding path program 1 times [2022-03-20 12:15:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:40,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459456906] [2022-03-20 12:15:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:40,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:40,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:40,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459456906] [2022-03-20 12:15:40,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459456906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:40,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:40,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:40,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207537664] [2022-03-20 12:15:40,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:40,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:40,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:40,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:40,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:40,596 INFO L87 Difference]: Start difference. First operand 161 states and 236 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:42,603 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 [] [2022-03-20 12:15:42,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:42,908 INFO L93 Difference]: Finished difference Result 299 states and 445 transitions. [2022-03-20 12:15:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:42,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 12:15:42,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:42,910 INFO L225 Difference]: With dead ends: 299 [2022-03-20 12:15:42,910 INFO L226 Difference]: Without dead ends: 164 [2022-03-20 12:15:42,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:42,911 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:42,911 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:15:42,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-03-20 12:15:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-03-20 12:15:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4807692307692308) internal successors, (231), 156 states have internal predecessors, (231), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 235 transitions. [2022-03-20 12:15:42,914 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 235 transitions. Word has length 69 [2022-03-20 12:15:42,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:42,914 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 235 transitions. [2022-03-20 12:15:42,915 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 235 transitions. [2022-03-20 12:15:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 12:15:42,915 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:42,915 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:42,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:15:42,915 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:42,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:42,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1119257833, now seen corresponding path program 1 times [2022-03-20 12:15:42,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:42,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366570567] [2022-03-20 12:15:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:43,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:43,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366570567] [2022-03-20 12:15:43,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366570567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:43,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:43,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:43,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101307315] [2022-03-20 12:15:43,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:43,040 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:43,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:43,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:43,041 INFO L87 Difference]: Start difference. First operand 161 states and 235 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:45,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:47,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:49,958 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 [] [2022-03-20 12:15:50,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:50,397 INFO L93 Difference]: Finished difference Result 410 states and 614 transitions. [2022-03-20 12:15:50,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:50,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 12:15:50,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:50,399 INFO L225 Difference]: With dead ends: 410 [2022-03-20 12:15:50,399 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 12:15:50,399 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:50,400 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 108 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:50,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 313 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 465 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 12:15:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 12:15:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2022-03-20 12:15:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.5527638190954773) internal successors, (309), 199 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:50,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 313 transitions. [2022-03-20 12:15:50,405 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 313 transitions. Word has length 69 [2022-03-20 12:15:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:50,405 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 313 transitions. [2022-03-20 12:15:50,405 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 313 transitions. [2022-03-20 12:15:50,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 12:15:50,406 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:50,406 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:50,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:15:50,406 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash 338203677, now seen corresponding path program 1 times [2022-03-20 12:15:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237611251] [2022-03-20 12:15:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:50,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237611251] [2022-03-20 12:15:50,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237611251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:50,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:50,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:50,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105755803] [2022-03-20 12:15:50,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:50,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:50,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:50,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:50,515 INFO L87 Difference]: Start difference. First operand 204 states and 313 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:52,141 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 [] [2022-03-20 12:15:54,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:56,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:15:58,226 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 [] [2022-03-20 12:15:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:15:58,584 INFO L93 Difference]: Finished difference Result 426 states and 662 transitions. [2022-03-20 12:15:58,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:15:58,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 12:15:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:15:58,586 INFO L225 Difference]: With dead ends: 426 [2022-03-20 12:15:58,586 INFO L226 Difference]: Without dead ends: 248 [2022-03-20 12:15:58,586 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:15:58,587 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 34 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:15:58,587 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 473 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-20 12:15:58,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-20 12:15:58,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 226. [2022-03-20 12:15:58,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.5610859728506787) internal successors, (345), 221 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 349 transitions. [2022-03-20 12:15:58,592 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 349 transitions. Word has length 70 [2022-03-20 12:15:58,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:15:58,593 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 349 transitions. [2022-03-20 12:15:58,593 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:15:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 349 transitions. [2022-03-20 12:15:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 12:15:58,593 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:15:58,594 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:15:58,594 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:15:58,594 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:15:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:15:58,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1716885067, now seen corresponding path program 1 times [2022-03-20 12:15:58,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:15:58,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189768246] [2022-03-20 12:15:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:15:58,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:15:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:58,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:15:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:15:58,682 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:15:58,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:15:58,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189768246] [2022-03-20 12:15:58,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189768246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:15:58,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:15:58,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:15:58,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043536476] [2022-03-20 12:15:58,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:15:58,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:15:58,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:15:58,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:15:58,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:15:58,684 INFO L87 Difference]: Start difference. First operand 226 states and 349 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) [2022-03-20 12:16:00,691 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 [] [2022-03-20 12:16:01,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:01,089 INFO L93 Difference]: Finished difference Result 448 states and 697 transitions. [2022-03-20 12:16:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:01,089 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 [2022-03-20 12:16:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:01,090 INFO L225 Difference]: With dead ends: 448 [2022-03-20 12:16:01,091 INFO L226 Difference]: Without dead ends: 248 [2022-03-20 12:16:01,091 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:01,091 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:01,092 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 473 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-20 12:16:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 226. [2022-03-20 12:16:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.5565610859728507) internal successors, (344), 221 states have internal predecessors, (344), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 348 transitions. [2022-03-20 12:16:01,096 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 348 transitions. Word has length 83 [2022-03-20 12:16:01,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:01,096 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 348 transitions. [2022-03-20 12:16:01,097 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) [2022-03-20 12:16:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 348 transitions. [2022-03-20 12:16:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:16:01,097 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:01,097 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:01,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:16:01,097 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:01,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:01,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1866734691, now seen corresponding path program 1 times [2022-03-20 12:16:01,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:01,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828320250] [2022-03-20 12:16:01,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:01,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:16:01,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:01,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828320250] [2022-03-20 12:16:01,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828320250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:01,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:01,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:01,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473192117] [2022-03-20 12:16:01,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:01,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:01,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:01,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:01,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:01,202 INFO L87 Difference]: Start difference. First operand 226 states and 348 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) [2022-03-20 12:16:03,230 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 [] [2022-03-20 12:16:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:03,589 INFO L93 Difference]: Finished difference Result 455 states and 707 transitions. [2022-03-20 12:16:03,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:03,590 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 84 [2022-03-20 12:16:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:03,591 INFO L225 Difference]: With dead ends: 455 [2022-03-20 12:16:03,591 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 12:16:03,591 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:03,591 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:03,592 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 544 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:03,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 12:16:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 242. [2022-03-20 12:16:03,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.5527426160337552) internal successors, (368), 237 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:03,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 372 transitions. [2022-03-20 12:16:03,596 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 372 transitions. Word has length 84 [2022-03-20 12:16:03,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:03,596 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 372 transitions. [2022-03-20 12:16:03,597 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) [2022-03-20 12:16:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 372 transitions. [2022-03-20 12:16:03,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:16:03,597 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:03,597 INFO L499 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, 1, 1, 1] [2022-03-20 12:16:03,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:16:03,597 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:03,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:03,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2086442781, now seen corresponding path program 1 times [2022-03-20 12:16:03,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:03,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861241670] [2022-03-20 12:16:03,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:03,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:16:03,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861241670] [2022-03-20 12:16:03,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861241670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:03,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:03,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:03,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394232466] [2022-03-20 12:16:03,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:03,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:03,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:03,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:03,685 INFO L87 Difference]: Start difference. First operand 242 states and 372 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) [2022-03-20 12:16:05,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:06,114 INFO L93 Difference]: Finished difference Result 558 states and 868 transitions. [2022-03-20 12:16:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:06,114 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 [2022-03-20 12:16:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:06,116 INFO L225 Difference]: With dead ends: 558 [2022-03-20 12:16:06,116 INFO L226 Difference]: Without dead ends: 342 [2022-03-20 12:16:06,117 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:06,117 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 134 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:06,118 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:06,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-20 12:16:06,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 247. [2022-03-20 12:16:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 379 transitions. [2022-03-20 12:16:06,127 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 379 transitions. Word has length 84 [2022-03-20 12:16:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:06,127 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 379 transitions. [2022-03-20 12:16:06,127 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) [2022-03-20 12:16:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 379 transitions. [2022-03-20 12:16:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:16:06,128 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:06,128 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:06,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:16:06,128 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:06,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash -458785789, now seen corresponding path program 1 times [2022-03-20 12:16:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:06,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58957389] [2022-03-20 12:16:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:06,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:16:06,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:06,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58957389] [2022-03-20 12:16:06,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58957389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:06,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:06,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178632265] [2022-03-20 12:16:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:06,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:06,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:06,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:06,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:06,230 INFO L87 Difference]: Start difference. First operand 247 states and 379 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) [2022-03-20 12:16:08,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:10,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:12,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:14,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:14,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:14,560 INFO L93 Difference]: Finished difference Result 487 states and 754 transitions. [2022-03-20 12:16:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:14,561 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 [2022-03-20 12:16:14,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:14,562 INFO L225 Difference]: With dead ends: 487 [2022-03-20 12:16:14,562 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 12:16:14,562 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:14,563 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 36 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:14,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 479 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-20 12:16:14,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 12:16:14,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 247. [2022-03-20 12:16:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5454545454545454) internal successors, (374), 242 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 378 transitions. [2022-03-20 12:16:14,568 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 378 transitions. Word has length 84 [2022-03-20 12:16:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:14,568 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 378 transitions. [2022-03-20 12:16:14,569 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) [2022-03-20 12:16:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 378 transitions. [2022-03-20 12:16:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 12:16:14,569 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:14,569 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:14,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:16:14,570 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1191609488, now seen corresponding path program 1 times [2022-03-20 12:16:14,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:14,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263334808] [2022-03-20 12:16:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:14,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 12:16:14,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:14,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263334808] [2022-03-20 12:16:14,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263334808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:14,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:14,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:16:14,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581732742] [2022-03-20 12:16:14,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:14,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:16:14,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:16:14,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:14,682 INFO L87 Difference]: Start difference. First operand 247 states and 378 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:16,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:17,080 INFO L93 Difference]: Finished difference Result 477 states and 738 transitions. [2022-03-20 12:16:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 12:16:17,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 12:16:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:17,082 INFO L225 Difference]: With dead ends: 477 [2022-03-20 12:16:17,082 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 12:16:17,083 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:16:17,083 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:17,084 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 12:16:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-03-20 12:16:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-03-20 12:16:17,089 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 85 [2022-03-20 12:16:17,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:17,089 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-03-20 12:16:17,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-03-20 12:16:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 12:16:17,090 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:17,090 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:17,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:16:17,090 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:17,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:17,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1818163604, now seen corresponding path program 1 times [2022-03-20 12:16:17,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:17,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010240036] [2022-03-20 12:16:17,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:17,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:17,186 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:16:17,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:17,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010240036] [2022-03-20 12:16:17,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010240036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:17,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:17,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787138927] [2022-03-20 12:16:17,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:17,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:17,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:17,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:17,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:17,187 INFO L87 Difference]: Start difference. First operand 256 states and 389 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:19,200 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 [] [2022-03-20 12:16:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:19,661 INFO L93 Difference]: Finished difference Result 590 states and 903 transitions. [2022-03-20 12:16:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:19,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 12:16:19,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:19,663 INFO L225 Difference]: With dead ends: 590 [2022-03-20 12:16:19,663 INFO L226 Difference]: Without dead ends: 360 [2022-03-20 12:16:19,663 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:19,664 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:19,664 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:16:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-20 12:16:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 256. [2022-03-20 12:16:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-03-20 12:16:19,670 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 87 [2022-03-20 12:16:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:19,670 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-03-20 12:16:19,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-03-20 12:16:19,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 12:16:19,671 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:19,671 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:19,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:16:19,671 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:19,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:19,672 INFO L85 PathProgramCache]: Analyzing trace with hash 989898955, now seen corresponding path program 1 times [2022-03-20 12:16:19,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:19,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297314733] [2022-03-20 12:16:19,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:19,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:16:19,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:19,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297314733] [2022-03-20 12:16:19,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297314733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:19,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:19,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:19,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909653514] [2022-03-20 12:16:19,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:19,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:19,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:19,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:19,775 INFO L87 Difference]: Start difference. First operand 256 states and 385 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:21,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:23,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:25,464 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 [] [2022-03-20 12:16:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:25,824 INFO L93 Difference]: Finished difference Result 504 states and 764 transitions. [2022-03-20 12:16:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:25,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 12:16:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:25,825 INFO L225 Difference]: With dead ends: 504 [2022-03-20 12:16:25,825 INFO L226 Difference]: Without dead ends: 274 [2022-03-20 12:16:25,826 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:25,827 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 35 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:25,827 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 481 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 12:16:25,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-20 12:16:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 256. [2022-03-20 12:16:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5139442231075697) internal successors, (380), 251 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2022-03-20 12:16:25,832 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 88 [2022-03-20 12:16:25,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:25,833 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2022-03-20 12:16:25,833 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:25,833 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2022-03-20 12:16:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 12:16:25,833 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:25,834 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:25,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:16:25,834 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:25,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176068, now seen corresponding path program 1 times [2022-03-20 12:16:25,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:25,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686972165] [2022-03-20 12:16:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:25,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:25,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:16:25,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:25,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686972165] [2022-03-20 12:16:25,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686972165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:25,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:25,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:25,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8155925] [2022-03-20 12:16:25,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:25,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:25,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:25,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:25,930 INFO L87 Difference]: Start difference. First operand 256 states and 384 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) [2022-03-20 12:16:27,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:29,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:31,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:33,610 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 [] [2022-03-20 12:16:34,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:34,037 INFO L93 Difference]: Finished difference Result 590 states and 893 transitions. [2022-03-20 12:16:34,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:34,037 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 92 [2022-03-20 12:16:34,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:34,039 INFO L225 Difference]: With dead ends: 590 [2022-03-20 12:16:34,039 INFO L226 Difference]: Without dead ends: 358 [2022-03-20 12:16:34,039 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:34,040 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 107 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 60 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:34,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 326 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 12:16:34,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-20 12:16:34,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 280. [2022-03-20 12:16:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5527272727272727) internal successors, (427), 275 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 431 transitions. [2022-03-20 12:16:34,065 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 431 transitions. Word has length 92 [2022-03-20 12:16:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:34,065 INFO L478 AbstractCegarLoop]: Abstraction has 280 states and 431 transitions. [2022-03-20 12:16:34,065 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) [2022-03-20 12:16:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 431 transitions. [2022-03-20 12:16:34,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-20 12:16:34,066 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:34,067 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:34,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:16:34,067 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:34,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1099971198, now seen corresponding path program 1 times [2022-03-20 12:16:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:34,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158801516] [2022-03-20 12:16:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:16:34,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:34,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158801516] [2022-03-20 12:16:34,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158801516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:34,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:34,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:34,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053009917] [2022-03-20 12:16:34,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:34,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:34,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:34,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:34,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:34,182 INFO L87 Difference]: Start difference. First operand 280 states and 431 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) [2022-03-20 12:16:36,191 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 [] [2022-03-20 12:16:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:36,653 INFO L93 Difference]: Finished difference Result 651 states and 1006 transitions. [2022-03-20 12:16:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:36,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-03-20 12:16:36,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:36,656 INFO L225 Difference]: With dead ends: 651 [2022-03-20 12:16:36,656 INFO L226 Difference]: Without dead ends: 397 [2022-03-20 12:16:36,656 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:36,658 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 115 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:36,658 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 342 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:36,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-20 12:16:36,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 312. [2022-03-20 12:16:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.5635179153094463) internal successors, (480), 307 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 484 transitions. [2022-03-20 12:16:36,668 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 484 transitions. Word has length 120 [2022-03-20 12:16:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:36,668 INFO L478 AbstractCegarLoop]: Abstraction has 312 states and 484 transitions. [2022-03-20 12:16:36,668 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) [2022-03-20 12:16:36,668 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 484 transitions. [2022-03-20 12:16:36,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 12:16:36,669 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:36,669 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:36,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:16:36,669 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1440427339, now seen corresponding path program 1 times [2022-03-20 12:16:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:36,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139887114] [2022-03-20 12:16:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:36,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 12:16:36,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:36,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139887114] [2022-03-20 12:16:36,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139887114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:36,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:36,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:36,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909778329] [2022-03-20 12:16:36,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:36,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:36,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:36,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:36,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:36,777 INFO L87 Difference]: Start difference. First operand 312 states and 484 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:38,785 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 [] [2022-03-20 12:16:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:39,321 INFO L93 Difference]: Finished difference Result 666 states and 1030 transitions. [2022-03-20 12:16:39,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:39,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-20 12:16:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:39,323 INFO L225 Difference]: With dead ends: 666 [2022-03-20 12:16:39,323 INFO L226 Difference]: Without dead ends: 380 [2022-03-20 12:16:39,324 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:39,325 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:39,326 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 318 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:16:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-03-20 12:16:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 312. [2022-03-20 12:16:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 307 states have (on average 1.5472312703583062) internal successors, (475), 307 states have internal predecessors, (475), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 479 transitions. [2022-03-20 12:16:39,334 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 479 transitions. Word has length 125 [2022-03-20 12:16:39,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:39,334 INFO L478 AbstractCegarLoop]: Abstraction has 312 states and 479 transitions. [2022-03-20 12:16:39,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 479 transitions. [2022-03-20 12:16:39,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 12:16:39,335 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:39,335 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:39,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:16:39,336 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:39,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1373336550, now seen corresponding path program 1 times [2022-03-20 12:16:39,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:39,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206600468] [2022-03-20 12:16:39,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 12:16:39,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:39,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206600468] [2022-03-20 12:16:39,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206600468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:39,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:39,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:16:39,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694936103] [2022-03-20 12:16:39,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:39,466 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:16:39,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:16:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:39,469 INFO L87 Difference]: Start difference. First operand 312 states and 479 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:41,477 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 [] [2022-03-20 12:16:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:41,871 INFO L93 Difference]: Finished difference Result 879 states and 1372 transitions. [2022-03-20 12:16:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:16:41,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 12:16:41,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:41,873 INFO L225 Difference]: With dead ends: 879 [2022-03-20 12:16:41,873 INFO L226 Difference]: Without dead ends: 593 [2022-03-20 12:16:41,874 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:41,874 INFO L913 BasicCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:41,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:16:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-03-20 12:16:41,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2022-03-20 12:16:41,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 588 states have (on average 1.554421768707483) internal successors, (914), 588 states have internal predecessors, (914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 918 transitions. [2022-03-20 12:16:41,884 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 918 transitions. Word has length 132 [2022-03-20 12:16:41,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:41,885 INFO L478 AbstractCegarLoop]: Abstraction has 593 states and 918 transitions. [2022-03-20 12:16:41,885 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:41,885 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 918 transitions. [2022-03-20 12:16:41,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 12:16:41,886 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:41,886 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:41,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:16:41,886 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:41,887 INFO L85 PathProgramCache]: Analyzing trace with hash 348642629, now seen corresponding path program 1 times [2022-03-20 12:16:41,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:41,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158119540] [2022-03-20 12:16:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:41,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:41,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 12:16:41,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:41,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158119540] [2022-03-20 12:16:41,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158119540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:41,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:41,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:16:41,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596507823] [2022-03-20 12:16:41,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:41,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:16:41,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:41,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:16:41,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:41,984 INFO L87 Difference]: Start difference. First operand 593 states and 918 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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) [2022-03-20 12:16:44,006 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 [] [2022-03-20 12:16:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:44,322 INFO L93 Difference]: Finished difference Result 1399 states and 2178 transitions. [2022-03-20 12:16:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:16:44,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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 [2022-03-20 12:16:44,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:44,325 INFO L225 Difference]: With dead ends: 1399 [2022-03-20 12:16:44,325 INFO L226 Difference]: Without dead ends: 832 [2022-03-20 12:16:44,326 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:44,327 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:44,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:16:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-03-20 12:16:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2022-03-20 12:16:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.5489721886336154) internal successors, (1281), 827 states have internal predecessors, (1281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1285 transitions. [2022-03-20 12:16:44,344 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1285 transitions. Word has length 132 [2022-03-20 12:16:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:44,344 INFO L478 AbstractCegarLoop]: Abstraction has 832 states and 1285 transitions. [2022-03-20 12:16:44,344 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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) [2022-03-20 12:16:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1285 transitions. [2022-03-20 12:16:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 12:16:44,346 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:44,346 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:44,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:16:44,347 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2018872788, now seen corresponding path program 1 times [2022-03-20 12:16:44,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:44,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226399653] [2022-03-20 12:16:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-20 12:16:44,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:44,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226399653] [2022-03-20 12:16:44,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226399653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:44,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:44,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:16:44,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631770981] [2022-03-20 12:16:44,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:44,437 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:16:44,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:16:44,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:44,438 INFO L87 Difference]: Start difference. First operand 832 states and 1285 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 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) [2022-03-20 12:16:46,448 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 [] [2022-03-20 12:16:46,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:46,728 INFO L93 Difference]: Finished difference Result 1665 states and 2577 transitions. [2022-03-20 12:16:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:16:46,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 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 133 [2022-03-20 12:16:46,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:46,731 INFO L225 Difference]: With dead ends: 1665 [2022-03-20 12:16:46,731 INFO L226 Difference]: Without dead ends: 859 [2022-03-20 12:16:46,734 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:46,735 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:46,735 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:16:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-03-20 12:16:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2022-03-20 12:16:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 854 states have (on average 1.540983606557377) internal successors, (1316), 854 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1320 transitions. [2022-03-20 12:16:46,751 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1320 transitions. Word has length 133 [2022-03-20 12:16:46,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:46,751 INFO L478 AbstractCegarLoop]: Abstraction has 859 states and 1320 transitions. [2022-03-20 12:16:46,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 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) [2022-03-20 12:16:46,751 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1320 transitions. [2022-03-20 12:16:46,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 12:16:46,753 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:46,753 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:46,753 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:16:46,753 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash -942319379, now seen corresponding path program 1 times [2022-03-20 12:16:46,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:46,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668210310] [2022-03-20 12:16:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:46,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 12:16:46,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:46,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668210310] [2022-03-20 12:16:46,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668210310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:46,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:46,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:16:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566319920] [2022-03-20 12:16:46,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:46,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:16:46,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:16:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:46,839 INFO L87 Difference]: Start difference. First operand 859 states and 1320 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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) [2022-03-20 12:16:48,847 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 [] [2022-03-20 12:16:49,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:49,108 INFO L93 Difference]: Finished difference Result 1694 states and 2613 transitions. [2022-03-20 12:16:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:16:49,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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 133 [2022-03-20 12:16:49,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:49,110 INFO L225 Difference]: With dead ends: 1694 [2022-03-20 12:16:49,111 INFO L226 Difference]: Without dead ends: 861 [2022-03-20 12:16:49,112 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:16:49,112 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:49,112 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:16:49,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-03-20 12:16:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2022-03-20 12:16:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5397196261682242) internal successors, (1318), 856 states have internal predecessors, (1318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:49,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1322 transitions. [2022-03-20 12:16:49,131 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1322 transitions. Word has length 133 [2022-03-20 12:16:49,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:49,131 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1322 transitions. [2022-03-20 12:16:49,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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) [2022-03-20 12:16:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1322 transitions. [2022-03-20 12:16:49,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 12:16:49,133 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:49,133 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:49,133 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:16:49,133 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1318648105, now seen corresponding path program 1 times [2022-03-20 12:16:49,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:49,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189843008] [2022-03-20 12:16:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:49,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 12:16:49,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:49,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189843008] [2022-03-20 12:16:49,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189843008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:49,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:49,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:49,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431723798] [2022-03-20 12:16:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:49,253 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:49,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:49,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:49,254 INFO L87 Difference]: Start difference. First operand 861 states and 1322 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:51,267 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 [] [2022-03-20 12:16:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:51,812 INFO L93 Difference]: Finished difference Result 1799 states and 2746 transitions. [2022-03-20 12:16:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:51,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-20 12:16:51,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:51,815 INFO L225 Difference]: With dead ends: 1799 [2022-03-20 12:16:51,815 INFO L226 Difference]: Without dead ends: 966 [2022-03-20 12:16:51,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:51,817 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:51,818 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 624 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:16:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-03-20 12:16:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 861. [2022-03-20 12:16:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5373831775700935) internal successors, (1316), 856 states have internal predecessors, (1316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1320 transitions. [2022-03-20 12:16:51,833 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1320 transitions. Word has length 196 [2022-03-20 12:16:51,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:51,833 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1320 transitions. [2022-03-20 12:16:51,833 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:51,833 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1320 transitions. [2022-03-20 12:16:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-20 12:16:51,835 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:51,835 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:51,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:16:51,835 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:51,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:51,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1012366808, now seen corresponding path program 1 times [2022-03-20 12:16:51,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:51,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862433198] [2022-03-20 12:16:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:51,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 12:16:51,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:51,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862433198] [2022-03-20 12:16:51,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862433198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:51,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:51,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:51,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891068353] [2022-03-20 12:16:51,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:51,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:51,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:51,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:51,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:51,954 INFO L87 Difference]: Start difference. First operand 861 states and 1320 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:54,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:56,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:58,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:16:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:16:58,831 INFO L93 Difference]: Finished difference Result 1890 states and 2869 transitions. [2022-03-20 12:16:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:16:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-20 12:16:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:16:58,835 INFO L225 Difference]: With dead ends: 1890 [2022-03-20 12:16:58,835 INFO L226 Difference]: Without dead ends: 1057 [2022-03-20 12:16:58,837 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:16:58,837 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 123 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 12:16:58,837 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 318 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 12:16:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-03-20 12:16:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2022-03-20 12:16:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.52803738317757) internal successors, (1308), 856 states have internal predecessors, (1308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1312 transitions. [2022-03-20 12:16:58,853 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1312 transitions. Word has length 197 [2022-03-20 12:16:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:16:58,853 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1312 transitions. [2022-03-20 12:16:58,854 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:16:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1312 transitions. [2022-03-20 12:16:58,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-03-20 12:16:58,855 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:16:58,856 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:16:58,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:16:58,856 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:16:58,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:16:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash -690004383, now seen corresponding path program 1 times [2022-03-20 12:16:58,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:16:58,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485265587] [2022-03-20 12:16:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:16:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:16:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:58,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:16:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:16:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:16:58,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:16:58,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485265587] [2022-03-20 12:16:58,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485265587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:16:58,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:16:58,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:16:58,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784663368] [2022-03-20 12:16:58,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:16:58,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:16:58,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:16:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:16:58,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:16:58,972 INFO L87 Difference]: Start difference. First operand 861 states and 1312 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:00,980 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 [] [2022-03-20 12:17:01,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:01,435 INFO L93 Difference]: Finished difference Result 1890 states and 2853 transitions. [2022-03-20 12:17:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:01,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 209 [2022-03-20 12:17:01,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:01,439 INFO L225 Difference]: With dead ends: 1890 [2022-03-20 12:17:01,439 INFO L226 Difference]: Without dead ends: 1057 [2022-03-20 12:17:01,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:01,441 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 129 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:01,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 318 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:01,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-03-20 12:17:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2022-03-20 12:17:01,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.5186915887850467) internal successors, (1300), 856 states have internal predecessors, (1300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1304 transitions. [2022-03-20 12:17:01,463 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1304 transitions. Word has length 209 [2022-03-20 12:17:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:01,463 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1304 transitions. [2022-03-20 12:17:01,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1304 transitions. [2022-03-20 12:17:01,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-03-20 12:17:01,465 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:01,465 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:01,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:17:01,465 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1794649539, now seen corresponding path program 1 times [2022-03-20 12:17:01,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972849934] [2022-03-20 12:17:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:01,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:01,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:01,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:01,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972849934] [2022-03-20 12:17:01,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972849934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:01,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:01,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:01,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942641217] [2022-03-20 12:17:01,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:01,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:01,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:01,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:01,593 INFO L87 Difference]: Start difference. First operand 861 states and 1304 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:03,607 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 [] [2022-03-20 12:17:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:04,110 INFO L93 Difference]: Finished difference Result 1785 states and 2692 transitions. [2022-03-20 12:17:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:04,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 210 [2022-03-20 12:17:04,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:04,113 INFO L225 Difference]: With dead ends: 1785 [2022-03-20 12:17:04,113 INFO L226 Difference]: Without dead ends: 952 [2022-03-20 12:17:04,114 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:04,114 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 93 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:04,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 610 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:17:04,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-03-20 12:17:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 861. [2022-03-20 12:17:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 856 states have (on average 1.516355140186916) internal successors, (1298), 856 states have internal predecessors, (1298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:04,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1302 transitions. [2022-03-20 12:17:04,169 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1302 transitions. Word has length 210 [2022-03-20 12:17:04,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:04,170 INFO L478 AbstractCegarLoop]: Abstraction has 861 states and 1302 transitions. [2022-03-20 12:17:04,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1302 transitions. [2022-03-20 12:17:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 12:17:04,172 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:04,172 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 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, 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] [2022-03-20 12:17:04,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:17:04,172 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash 554678676, now seen corresponding path program 1 times [2022-03-20 12:17:04,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:04,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673366826] [2022-03-20 12:17:04,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:04,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:04,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 256 proven. 33 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-03-20 12:17:04,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:04,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673366826] [2022-03-20 12:17:04,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673366826] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:17:04,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496623216] [2022-03-20 12:17:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:04,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:17:04,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:17:04,307 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) [2022-03-20 12:17:04,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:17:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:04,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-20 12:17:04,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:17:05,052 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:17:05,053 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 [2022-03-20 12:17:05,116 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:17:05,117 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 [2022-03-20 12:17:05,185 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:17:05,185 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 [2022-03-20 12:17:05,239 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 [2022-03-20 12:17:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 264 proven. 30 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-03-20 12:17:05,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:17:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:05,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496623216] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:17:05,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:17:05,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 12 [2022-03-20 12:17:05,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559318596] [2022-03-20 12:17:05,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:05,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:17:05,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:05,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:17:05,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-20 12:17:05,616 INFO L87 Difference]: Start difference. First operand 861 states and 1302 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2022-03-20 12:17:07,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:07,944 INFO L93 Difference]: Finished difference Result 1974 states and 2977 transitions. [2022-03-20 12:17:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:17:07,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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 213 [2022-03-20 12:17:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:07,948 INFO L225 Difference]: With dead ends: 1974 [2022-03-20 12:17:07,948 INFO L226 Difference]: Without dead ends: 1141 [2022-03-20 12:17:07,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-20 12:17:07,950 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 99 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:07,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 387 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:17:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-03-20 12:17:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 921. [2022-03-20 12:17:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4989082969432315) internal successors, (1373), 916 states have internal predecessors, (1373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:07,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1377 transitions. [2022-03-20 12:17:07,966 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1377 transitions. Word has length 213 [2022-03-20 12:17:07,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:07,967 INFO L478 AbstractCegarLoop]: Abstraction has 921 states and 1377 transitions. [2022-03-20 12:17:07,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2022-03-20 12:17:07,967 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1377 transitions. [2022-03-20 12:17:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 12:17:07,969 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:07,969 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:07,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 12:17:08,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:17:08,180 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:08,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash -133422725, now seen corresponding path program 1 times [2022-03-20 12:17:08,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:08,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010354209] [2022-03-20 12:17:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:08,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:08,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:08,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:08,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010354209] [2022-03-20 12:17:08,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010354209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:08,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:08,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:08,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957363027] [2022-03-20 12:17:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:08,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:08,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:08,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:08,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:08,292 INFO L87 Difference]: Start difference. First operand 921 states and 1377 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:10,305 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 [] [2022-03-20 12:17:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:10,761 INFO L93 Difference]: Finished difference Result 1980 states and 2944 transitions. [2022-03-20 12:17:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-20 12:17:10,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:10,764 INFO L225 Difference]: With dead ends: 1980 [2022-03-20 12:17:10,764 INFO L226 Difference]: Without dead ends: 1087 [2022-03-20 12:17:10,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:10,766 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:10,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:10,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2022-03-20 12:17:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 921. [2022-03-20 12:17:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4836244541484715) internal successors, (1359), 916 states have internal predecessors, (1359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:10,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1363 transitions. [2022-03-20 12:17:10,783 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1363 transitions. Word has length 214 [2022-03-20 12:17:10,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:10,783 INFO L478 AbstractCegarLoop]: Abstraction has 921 states and 1363 transitions. [2022-03-20 12:17:10,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1363 transitions. [2022-03-20 12:17:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 12:17:10,785 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:10,785 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:10,785 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:17:10,786 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash -168214403, now seen corresponding path program 1 times [2022-03-20 12:17:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:10,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594512609] [2022-03-20 12:17:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:10,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:10,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:10,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594512609] [2022-03-20 12:17:10,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594512609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:10,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:10,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:10,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812023494] [2022-03-20 12:17:10,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:10,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:10,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:10,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:10,901 INFO L87 Difference]: Start difference. First operand 921 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:12,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:14,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:16,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:18,797 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 [] [2022-03-20 12:17:19,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:19,247 INFO L93 Difference]: Finished difference Result 1885 states and 2784 transitions. [2022-03-20 12:17:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:19,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-20 12:17:19,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:19,250 INFO L225 Difference]: With dead ends: 1885 [2022-03-20 12:17:19,250 INFO L226 Difference]: Without dead ends: 992 [2022-03-20 12:17:19,253 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:19,255 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 80 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:19,256 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 592 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 553 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-20 12:17:19,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-03-20 12:17:19,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 921. [2022-03-20 12:17:19,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 916 states have (on average 1.4814410480349345) internal successors, (1357), 916 states have internal predecessors, (1357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:19,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1361 transitions. [2022-03-20 12:17:19,280 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1361 transitions. Word has length 214 [2022-03-20 12:17:19,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:19,280 INFO L478 AbstractCegarLoop]: Abstraction has 921 states and 1361 transitions. [2022-03-20 12:17:19,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:19,281 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1361 transitions. [2022-03-20 12:17:19,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-03-20 12:17:19,297 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:19,297 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:19,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 12:17:19,297 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:19,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:19,298 INFO L85 PathProgramCache]: Analyzing trace with hash -443142085, now seen corresponding path program 1 times [2022-03-20 12:17:19,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:19,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234234378] [2022-03-20 12:17:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:19,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:19,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234234378] [2022-03-20 12:17:19,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234234378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:19,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:19,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163015271] [2022-03-20 12:17:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:19,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:19,422 INFO L87 Difference]: Start difference. First operand 921 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:22,353 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 [] [2022-03-20 12:17:24,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:26,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:26,849 INFO L93 Difference]: Finished difference Result 2106 states and 3116 transitions. [2022-03-20 12:17:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:26,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-03-20 12:17:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:26,853 INFO L225 Difference]: With dead ends: 2106 [2022-03-20 12:17:26,853 INFO L226 Difference]: Without dead ends: 1213 [2022-03-20 12:17:26,855 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:26,856 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 116 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 55 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:26,862 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 334 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 446 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 12:17:26,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2022-03-20 12:17:26,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 984. [2022-03-20 12:17:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 979 states have (on average 1.4627170582226763) internal successors, (1432), 979 states have internal predecessors, (1432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1436 transitions. [2022-03-20 12:17:26,880 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1436 transitions. Word has length 215 [2022-03-20 12:17:26,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:26,880 INFO L478 AbstractCegarLoop]: Abstraction has 984 states and 1436 transitions. [2022-03-20 12:17:26,880 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:26,880 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1436 transitions. [2022-03-20 12:17:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-03-20 12:17:26,883 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:26,883 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:17:26,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 12:17:26,883 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:26,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1150066281, now seen corresponding path program 1 times [2022-03-20 12:17:26,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:26,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575221266] [2022-03-20 12:17:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:26,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:27,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:27,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575221266] [2022-03-20 12:17:27,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575221266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:27,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:27,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:27,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993538232] [2022-03-20 12:17:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:27,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:27,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:27,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:27,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:27,027 INFO L87 Difference]: Start difference. First operand 984 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:29,047 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 [] [2022-03-20 12:17:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:29,485 INFO L93 Difference]: Finished difference Result 2192 states and 3198 transitions. [2022-03-20 12:17:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:29,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-03-20 12:17:29,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:29,489 INFO L225 Difference]: With dead ends: 2192 [2022-03-20 12:17:29,489 INFO L226 Difference]: Without dead ends: 1236 [2022-03-20 12:17:29,490 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:29,491 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:29,491 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 344 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:29,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-03-20 12:17:29,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1034. [2022-03-20 12:17:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4499514091350827) internal successors, (1492), 1029 states have internal predecessors, (1492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:29,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1496 transitions. [2022-03-20 12:17:29,508 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1496 transitions. Word has length 218 [2022-03-20 12:17:29,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:29,508 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1496 transitions. [2022-03-20 12:17:29,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1496 transitions. [2022-03-20 12:17:29,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-20 12:17:29,510 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:29,511 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 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] [2022-03-20 12:17:29,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 12:17:29,511 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:29,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:29,511 INFO L85 PathProgramCache]: Analyzing trace with hash -546969239, now seen corresponding path program 1 times [2022-03-20 12:17:29,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:29,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442573006] [2022-03-20 12:17:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:29,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:29,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:29,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442573006] [2022-03-20 12:17:29,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442573006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:29,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:29,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446986864] [2022-03-20 12:17:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:29,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:29,625 INFO L87 Difference]: Start difference. First operand 1034 states and 1496 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:30,634 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 [] [2022-03-20 12:17:32,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:34,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:36,716 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 [] [2022-03-20 12:17:37,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:37,149 INFO L93 Difference]: Finished difference Result 2202 states and 3177 transitions. [2022-03-20 12:17:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:37,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-03-20 12:17:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:37,153 INFO L225 Difference]: With dead ends: 2202 [2022-03-20 12:17:37,153 INFO L226 Difference]: Without dead ends: 1196 [2022-03-20 12:17:37,154 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:37,154 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 112 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:37,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 334 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 445 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 12:17:37,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-03-20 12:17:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1034. [2022-03-20 12:17:37,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4421768707482994) internal successors, (1484), 1029 states have internal predecessors, (1484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:37,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1488 transitions. [2022-03-20 12:17:37,171 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1488 transitions. Word has length 219 [2022-03-20 12:17:37,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:37,171 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1488 transitions. [2022-03-20 12:17:37,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:37,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1488 transitions. [2022-03-20 12:17:37,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-03-20 12:17:37,173 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:37,173 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:17:37,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 12:17:37,174 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:37,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash -547343874, now seen corresponding path program 1 times [2022-03-20 12:17:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:37,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736396691] [2022-03-20 12:17:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:37,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:37,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:37,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:37,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736396691] [2022-03-20 12:17:37,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736396691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:37,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:37,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:37,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182491651] [2022-03-20 12:17:37,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:37,280 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:37,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:37,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:37,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:37,281 INFO L87 Difference]: Start difference. First operand 1034 states and 1488 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:39,291 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 [] [2022-03-20 12:17:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:39,795 INFO L93 Difference]: Finished difference Result 2096 states and 3016 transitions. [2022-03-20 12:17:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:39,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2022-03-20 12:17:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:39,799 INFO L225 Difference]: With dead ends: 2096 [2022-03-20 12:17:39,799 INFO L226 Difference]: Without dead ends: 1090 [2022-03-20 12:17:39,800 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:39,801 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:39,801 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 574 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:17:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2022-03-20 12:17:39,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1034. [2022-03-20 12:17:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4402332361516035) internal successors, (1482), 1029 states have internal predecessors, (1482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1486 transitions. [2022-03-20 12:17:39,823 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1486 transitions. Word has length 221 [2022-03-20 12:17:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:39,824 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1486 transitions. [2022-03-20 12:17:39,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1486 transitions. [2022-03-20 12:17:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-20 12:17:39,826 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:39,826 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:17:39,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 12:17:39,827 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash 29557597, now seen corresponding path program 1 times [2022-03-20 12:17:39,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:39,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432509862] [2022-03-20 12:17:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:39,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:39,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:39,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432509862] [2022-03-20 12:17:39,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432509862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:39,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:39,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:39,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110906414] [2022-03-20 12:17:39,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:39,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:39,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:39,965 INFO L87 Difference]: Start difference. First operand 1034 states and 1486 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:41,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:43,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:45,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:47,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:47,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:47,895 INFO L93 Difference]: Finished difference Result 2080 states and 2986 transitions. [2022-03-20 12:17:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:47,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-03-20 12:17:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:47,899 INFO L225 Difference]: With dead ends: 2080 [2022-03-20 12:17:47,899 INFO L226 Difference]: Without dead ends: 1074 [2022-03-20 12:17:47,900 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:47,900 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 51 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:47,901 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 564 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 494 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-20 12:17:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-03-20 12:17:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1034. [2022-03-20 12:17:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1029 states have (on average 1.4382896015549076) internal successors, (1480), 1029 states have internal predecessors, (1480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1484 transitions. [2022-03-20 12:17:47,917 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1484 transitions. Word has length 222 [2022-03-20 12:17:47,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:47,918 INFO L478 AbstractCegarLoop]: Abstraction has 1034 states and 1484 transitions. [2022-03-20 12:17:47,918 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1484 transitions. [2022-03-20 12:17:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-20 12:17:47,920 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:47,920 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:17:47,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 12:17:47,920 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:47,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:47,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1817226739, now seen corresponding path program 1 times [2022-03-20 12:17:47,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:47,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799124896] [2022-03-20 12:17:47,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:47,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:48,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:48,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799124896] [2022-03-20 12:17:48,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799124896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:48,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:48,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:48,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968572493] [2022-03-20 12:17:48,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:48,047 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:48,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:48,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:48,047 INFO L87 Difference]: Start difference. First operand 1034 states and 1484 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:50,057 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 [] [2022-03-20 12:17:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:50,469 INFO L93 Difference]: Finished difference Result 2328 states and 3348 transitions. [2022-03-20 12:17:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:50,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2022-03-20 12:17:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:50,473 INFO L225 Difference]: With dead ends: 2328 [2022-03-20 12:17:50,473 INFO L226 Difference]: Without dead ends: 1322 [2022-03-20 12:17:50,475 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:50,476 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 106 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:50,476 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 334 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:17:50,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-03-20 12:17:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1124. [2022-03-20 12:17:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4307417336907953) internal successors, (1601), 1119 states have internal predecessors, (1601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:50,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1605 transitions. [2022-03-20 12:17:50,495 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1605 transitions. Word has length 223 [2022-03-20 12:17:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:50,495 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1605 transitions. [2022-03-20 12:17:50,495 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1605 transitions. [2022-03-20 12:17:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-20 12:17:50,497 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:50,497 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 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] [2022-03-20 12:17:50,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 12:17:50,497 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:50,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash 938283475, now seen corresponding path program 1 times [2022-03-20 12:17:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:50,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243730691] [2022-03-20 12:17:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:50,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:50,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:50,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243730691] [2022-03-20 12:17:50,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243730691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:50,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:50,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:50,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609972687] [2022-03-20 12:17:50,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:50,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:50,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:50,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:50,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:50,629 INFO L87 Difference]: Start difference. First operand 1124 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:53,543 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 [] [2022-03-20 12:17:55,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:57,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:17:58,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:17:58,012 INFO L93 Difference]: Finished difference Result 2260 states and 3224 transitions. [2022-03-20 12:17:58,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:17:58,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-03-20 12:17:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:17:58,015 INFO L225 Difference]: With dead ends: 2260 [2022-03-20 12:17:58,015 INFO L226 Difference]: Without dead ends: 1164 [2022-03-20 12:17:58,016 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:17:58,016 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:17:58,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 560 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 492 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 12:17:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-03-20 12:17:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1124. [2022-03-20 12:17:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4289544235924934) internal successors, (1599), 1119 states have internal predecessors, (1599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:58,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1603 transitions. [2022-03-20 12:17:58,034 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1603 transitions. Word has length 224 [2022-03-20 12:17:58,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:17:58,034 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1603 transitions. [2022-03-20 12:17:58,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:17:58,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1603 transitions. [2022-03-20 12:17:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-20 12:17:58,036 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:17:58,036 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:17:58,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 12:17:58,036 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:17:58,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:17:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash -249721456, now seen corresponding path program 1 times [2022-03-20 12:17:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:17:58,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795080604] [2022-03-20 12:17:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:17:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:17:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:17:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:17:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:17:58,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:17:58,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795080604] [2022-03-20 12:17:58,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795080604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:17:58,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:17:58,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:17:58,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914508383] [2022-03-20 12:17:58,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:17:58,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:17:58,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:17:58,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:17:58,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:17:58,134 INFO L87 Difference]: Start difference. First operand 1124 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:00,151 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 [] [2022-03-20 12:18:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:00,569 INFO L93 Difference]: Finished difference Result 2382 states and 3391 transitions. [2022-03-20 12:18:00,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:00,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-03-20 12:18:00,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:00,573 INFO L225 Difference]: With dead ends: 2382 [2022-03-20 12:18:00,573 INFO L226 Difference]: Without dead ends: 1286 [2022-03-20 12:18:00,574 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:00,575 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 105 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:00,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 334 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2022-03-20 12:18:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1124. [2022-03-20 12:18:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.421805183199285) internal successors, (1591), 1119 states have internal predecessors, (1591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:00,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1595 transitions. [2022-03-20 12:18:00,603 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1595 transitions. Word has length 224 [2022-03-20 12:18:00,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:00,603 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1595 transitions. [2022-03-20 12:18:00,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:00,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1595 transitions. [2022-03-20 12:18:00,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-20 12:18:00,605 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:00,605 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:00,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 12:18:00,605 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:00,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:00,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1302900628, now seen corresponding path program 1 times [2022-03-20 12:18:00,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:00,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793161415] [2022-03-20 12:18:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:00,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:00,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793161415] [2022-03-20 12:18:00,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793161415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:00,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:00,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:00,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611715128] [2022-03-20 12:18:00,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:00,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:00,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:00,707 INFO L87 Difference]: Start difference. First operand 1124 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:02,716 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 [] [2022-03-20 12:18:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:03,092 INFO L93 Difference]: Finished difference Result 2252 states and 3194 transitions. [2022-03-20 12:18:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:03,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-03-20 12:18:03,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:03,095 INFO L225 Difference]: With dead ends: 2252 [2022-03-20 12:18:03,095 INFO L226 Difference]: Without dead ends: 1156 [2022-03-20 12:18:03,096 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:03,096 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 47 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:03,096 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 554 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:18:03,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-03-20 12:18:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1124. [2022-03-20 12:18:03,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.420017873100983) internal successors, (1589), 1119 states have internal predecessors, (1589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1593 transitions. [2022-03-20 12:18:03,114 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1593 transitions. Word has length 225 [2022-03-20 12:18:03,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:03,114 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1593 transitions. [2022-03-20 12:18:03,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:03,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1593 transitions. [2022-03-20 12:18:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-20 12:18:03,116 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:03,116 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:03,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 12:18:03,117 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:03,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash 519324707, now seen corresponding path program 1 times [2022-03-20 12:18:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:03,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755158168] [2022-03-20 12:18:03,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:03,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:03,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:03,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:03,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755158168] [2022-03-20 12:18:03,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755158168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:03,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:03,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:03,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879150381] [2022-03-20 12:18:03,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:03,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:03,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:03,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:03,229 INFO L87 Difference]: Start difference. First operand 1124 states and 1593 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:05,238 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 [] [2022-03-20 12:18:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:05,620 INFO L93 Difference]: Finished difference Result 2252 states and 3190 transitions. [2022-03-20 12:18:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:05,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2022-03-20 12:18:05,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:05,622 INFO L225 Difference]: With dead ends: 2252 [2022-03-20 12:18:05,622 INFO L226 Difference]: Without dead ends: 1156 [2022-03-20 12:18:05,624 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:05,624 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 40 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:05,624 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 552 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:05,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2022-03-20 12:18:05,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1124. [2022-03-20 12:18:05,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.418230563002681) internal successors, (1587), 1119 states have internal predecessors, (1587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1591 transitions. [2022-03-20 12:18:05,642 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1591 transitions. Word has length 227 [2022-03-20 12:18:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:05,642 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1591 transitions. [2022-03-20 12:18:05,642 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1591 transitions. [2022-03-20 12:18:05,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-20 12:18:05,644 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:05,644 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:05,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 12:18:05,644 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2136203219, now seen corresponding path program 1 times [2022-03-20 12:18:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:05,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300185755] [2022-03-20 12:18:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:05,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:05,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300185755] [2022-03-20 12:18:05,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300185755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:05,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:05,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:05,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283313311] [2022-03-20 12:18:05,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:05,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:05,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:05,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:05,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:05,779 INFO L87 Difference]: Start difference. First operand 1124 states and 1591 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:07,788 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 [] [2022-03-20 12:18:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:08,146 INFO L93 Difference]: Finished difference Result 2244 states and 3176 transitions. [2022-03-20 12:18:08,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:08,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-03-20 12:18:08,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:08,149 INFO L225 Difference]: With dead ends: 2244 [2022-03-20 12:18:08,149 INFO L226 Difference]: Without dead ends: 1148 [2022-03-20 12:18:08,150 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:08,150 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 35 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:08,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 544 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:18:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-03-20 12:18:08,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1124. [2022-03-20 12:18:08,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.416443252904379) internal successors, (1585), 1119 states have internal predecessors, (1585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1589 transitions. [2022-03-20 12:18:08,170 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1589 transitions. Word has length 228 [2022-03-20 12:18:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:08,171 INFO L478 AbstractCegarLoop]: Abstraction has 1124 states and 1589 transitions. [2022-03-20 12:18:08,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1589 transitions. [2022-03-20 12:18:08,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-20 12:18:08,174 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:08,174 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-03-20 12:18:08,174 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 12:18:08,174 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:08,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:08,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2097942340, now seen corresponding path program 1 times [2022-03-20 12:18:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:08,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13956675] [2022-03-20 12:18:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:08,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:08,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:08,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13956675] [2022-03-20 12:18:08,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13956675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:08,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:08,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:08,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603927560] [2022-03-20 12:18:08,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:08,295 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:08,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:08,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:08,295 INFO L87 Difference]: Start difference. First operand 1124 states and 1589 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:10,302 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 [] [2022-03-20 12:18:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:10,703 INFO L93 Difference]: Finished difference Result 2508 states and 3552 transitions. [2022-03-20 12:18:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-03-20 12:18:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:10,705 INFO L225 Difference]: With dead ends: 2508 [2022-03-20 12:18:10,706 INFO L226 Difference]: Without dead ends: 1412 [2022-03-20 12:18:10,707 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:10,707 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 100 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:10,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 334 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-03-20 12:18:10,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1229. [2022-03-20 12:18:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.4133986928104576) internal successors, (1730), 1224 states have internal predecessors, (1730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:10,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1734 transitions. [2022-03-20 12:18:10,728 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1734 transitions. Word has length 228 [2022-03-20 12:18:10,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:10,728 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1734 transitions. [2022-03-20 12:18:10,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:10,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1734 transitions. [2022-03-20 12:18:10,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-03-20 12:18:10,730 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:10,730 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:10,730 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 12:18:10,730 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:10,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1089527269, now seen corresponding path program 1 times [2022-03-20 12:18:10,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:10,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949704210] [2022-03-20 12:18:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:10,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:10,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:10,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949704210] [2022-03-20 12:18:10,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949704210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:10,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:10,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:10,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331483743] [2022-03-20 12:18:10,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:10,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:10,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:10,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:10,858 INFO L87 Difference]: Start difference. First operand 1229 states and 1734 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:12,870 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 [] [2022-03-20 12:18:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:13,211 INFO L93 Difference]: Finished difference Result 2450 states and 3458 transitions. [2022-03-20 12:18:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:13,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2022-03-20 12:18:13,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:13,213 INFO L225 Difference]: With dead ends: 2450 [2022-03-20 12:18:13,213 INFO L226 Difference]: Without dead ends: 1249 [2022-03-20 12:18:13,214 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:13,215 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:13,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 538 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:18:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-20 12:18:13,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1229. [2022-03-20 12:18:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.411764705882353) internal successors, (1728), 1224 states have internal predecessors, (1728), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1732 transitions. [2022-03-20 12:18:13,234 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1732 transitions. Word has length 229 [2022-03-20 12:18:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:13,235 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1732 transitions. [2022-03-20 12:18:13,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1732 transitions. [2022-03-20 12:18:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-20 12:18:13,236 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:13,237 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:13,237 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 12:18:13,237 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:13,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1676322048, now seen corresponding path program 1 times [2022-03-20 12:18:13,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:13,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804148699] [2022-03-20 12:18:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:13,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:13,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804148699] [2022-03-20 12:18:13,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804148699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:13,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:13,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:13,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568619372] [2022-03-20 12:18:13,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:13,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:13,341 INFO L87 Difference]: Start difference. First operand 1229 states and 1732 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:15,353 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 [] [2022-03-20 12:18:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:15,775 INFO L93 Difference]: Finished difference Result 2450 states and 3454 transitions. [2022-03-20 12:18:15,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:15,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-03-20 12:18:15,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:15,778 INFO L225 Difference]: With dead ends: 2450 [2022-03-20 12:18:15,778 INFO L226 Difference]: Without dead ends: 1249 [2022-03-20 12:18:15,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:15,780 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 28 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:15,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 536 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-20 12:18:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1229. [2022-03-20 12:18:15,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.4101307189542485) internal successors, (1726), 1224 states have internal predecessors, (1726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1730 transitions. [2022-03-20 12:18:15,800 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1730 transitions. Word has length 230 [2022-03-20 12:18:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:15,801 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1730 transitions. [2022-03-20 12:18:15,801 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1730 transitions. [2022-03-20 12:18:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-20 12:18:15,802 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:15,803 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:15,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 12:18:15,803 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:15,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash -8501446, now seen corresponding path program 1 times [2022-03-20 12:18:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:15,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223804558] [2022-03-20 12:18:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:15,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:15,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223804558] [2022-03-20 12:18:15,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223804558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:15,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:15,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331524089] [2022-03-20 12:18:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:15,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:15,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:15,934 INFO L87 Difference]: Start difference. First operand 1229 states and 1730 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:17,943 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 [] [2022-03-20 12:18:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:18,360 INFO L93 Difference]: Finished difference Result 2446 states and 3446 transitions. [2022-03-20 12:18:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:18,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-03-20 12:18:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:18,362 INFO L225 Difference]: With dead ends: 2446 [2022-03-20 12:18:18,362 INFO L226 Difference]: Without dead ends: 1245 [2022-03-20 12:18:18,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:18,364 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 25 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:18,365 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 532 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-03-20 12:18:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1229. [2022-03-20 12:18:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1224 states have (on average 1.408496732026144) internal successors, (1724), 1224 states have internal predecessors, (1724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:18,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1728 transitions. [2022-03-20 12:18:18,390 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1728 transitions. Word has length 231 [2022-03-20 12:18:18,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:18,390 INFO L478 AbstractCegarLoop]: Abstraction has 1229 states and 1728 transitions. [2022-03-20 12:18:18,390 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:18,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1728 transitions. [2022-03-20 12:18:18,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-20 12:18:18,392 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:18,392 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:18,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 12:18:18,393 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:18,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:18,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1801789431, now seen corresponding path program 1 times [2022-03-20 12:18:18,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:18,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397422846] [2022-03-20 12:18:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:18,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:18,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:18,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397422846] [2022-03-20 12:18:18,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397422846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:18,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:18,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:18,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954877273] [2022-03-20 12:18:18,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:18,535 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:18,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:18,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:18,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:18,536 INFO L87 Difference]: Start difference. First operand 1229 states and 1728 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:20,545 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 [] [2022-03-20 12:18:20,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:20,936 INFO L93 Difference]: Finished difference Result 2817 states and 3968 transitions. [2022-03-20 12:18:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:20,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-20 12:18:20,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:20,939 INFO L225 Difference]: With dead ends: 2817 [2022-03-20 12:18:20,939 INFO L226 Difference]: Without dead ends: 1616 [2022-03-20 12:18:20,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:20,950 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 96 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:20,950 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 336 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:18:20,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-03-20 12:18:20,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1445. [2022-03-20 12:18:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.4104166666666667) internal successors, (2031), 1440 states have internal predecessors, (2031), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2035 transitions. [2022-03-20 12:18:20,972 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2035 transitions. Word has length 234 [2022-03-20 12:18:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:20,973 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 2035 transitions. [2022-03-20 12:18:20,973 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2035 transitions. [2022-03-20 12:18:20,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:18:20,975 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:20,975 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:20,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 12:18:20,975 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:20,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:20,975 INFO L85 PathProgramCache]: Analyzing trace with hash -658958062, now seen corresponding path program 1 times [2022-03-20 12:18:20,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:20,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142337014] [2022-03-20 12:18:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:20,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:18:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:21,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142337014] [2022-03-20 12:18:21,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142337014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:21,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:21,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:18:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131074487] [2022-03-20 12:18:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:21,084 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:21,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:21,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:18:21,085 INFO L87 Difference]: Start difference. First operand 1445 states and 2035 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:23,099 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 [] [2022-03-20 12:18:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:23,432 INFO L93 Difference]: Finished difference Result 2872 states and 4048 transitions. [2022-03-20 12:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 12:18:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:23,434 INFO L225 Difference]: With dead ends: 2872 [2022-03-20 12:18:23,434 INFO L226 Difference]: Without dead ends: 1455 [2022-03-20 12:18:23,436 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:23,436 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 19 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:23,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 526 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:18:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-20 12:18:23,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1445. [2022-03-20 12:18:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.4090277777777778) internal successors, (2029), 1440 states have internal predecessors, (2029), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:23,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2033 transitions. [2022-03-20 12:18:23,469 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2033 transitions. Word has length 235 [2022-03-20 12:18:23,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:23,470 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 2033 transitions. [2022-03-20 12:18:23,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:23,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2033 transitions. [2022-03-20 12:18:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 12:18:23,471 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:23,472 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:23,472 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 12:18:23,472 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1135293253, now seen corresponding path program 1 times [2022-03-20 12:18:23,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:23,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548224131] [2022-03-20 12:18:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:23,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:23,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-20 12:18:23,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:23,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548224131] [2022-03-20 12:18:23,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548224131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:23,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:23,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:18:23,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359311647] [2022-03-20 12:18:23,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:23,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:18:23,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:23,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:18:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:23,741 INFO L87 Difference]: Start difference. First operand 1445 states and 2033 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:25,752 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 [] [2022-03-20 12:18:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:26,506 INFO L93 Difference]: Finished difference Result 3325 states and 4690 transitions. [2022-03-20 12:18:26,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 12:18:26,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-20 12:18:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:26,508 INFO L225 Difference]: With dead ends: 3325 [2022-03-20 12:18:26,508 INFO L226 Difference]: Without dead ends: 1908 [2022-03-20 12:18:26,510 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-20 12:18:26,510 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 297 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:26,515 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 762 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 761 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 12:18:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-03-20 12:18:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1511. [2022-03-20 12:18:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1506 states have (on average 1.403054448871182) internal successors, (2113), 1506 states have internal predecessors, (2113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2117 transitions. [2022-03-20 12:18:26,540 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2117 transitions. Word has length 239 [2022-03-20 12:18:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:26,541 INFO L478 AbstractCegarLoop]: Abstraction has 1511 states and 2117 transitions. [2022-03-20 12:18:26,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2117 transitions. [2022-03-20 12:18:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 12:18:26,543 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:26,543 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:26,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 12:18:26,543 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:26,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:26,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2083120634, now seen corresponding path program 1 times [2022-03-20 12:18:26,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:26,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826766966] [2022-03-20 12:18:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:26,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 320 proven. 54 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 12:18:26,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:26,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826766966] [2022-03-20 12:18:26,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826766966] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:26,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484905341] [2022-03-20 12:18:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:26,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:18:26,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:18:26,880 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) [2022-03-20 12:18:26,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 12:18:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:27,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-20 12:18:27,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:18:27,732 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:18:27,732 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 [2022-03-20 12:18:27,772 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:18:27,772 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 [2022-03-20 12:18:27,893 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 [2022-03-20 12:18:27,913 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 [2022-03-20 12:18:27,915 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 [2022-03-20 12:18:27,929 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 12:18:27,929 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 32 [2022-03-20 12:18:28,016 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 12:18:28,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-20 12:18:28,125 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 29 treesize of output 11 [2022-03-20 12:18:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 305 proven. 48 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-20 12:18:28,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:18:28,402 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 [2022-03-20 12:18:28,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 12:18:29,678 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_13 Int) (v_arrayElimCell_12 Int)) (not (= 8496 (select (select (store |c_#memory_int| v_arrayElimCell_12 (store (select |c_#memory_int| v_arrayElimCell_12) (+ 904 v_arrayElimCell_13) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-03-20 12:18:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-20 12:18:29,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484905341] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:29,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:18:29,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 19 [2022-03-20 12:18:29,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643189643] [2022-03-20 12:18:29,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:29,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:29,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:29,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:29,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=264, Unknown=1, NotChecked=32, Total=342 [2022-03-20 12:18:29,802 INFO L87 Difference]: Start difference. First operand 1511 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2022-03-20 12:18:31,808 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 [] [2022-03-20 12:18:33,574 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_13 Int) (v_arrayElimCell_12 Int)) (not (= 8496 (select (select (store |c_#memory_int| v_arrayElimCell_12 (store (select |c_#memory_int| v_arrayElimCell_12) (+ 904 v_arrayElimCell_13) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8496))) is different from false [2022-03-20 12:18:33,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:33,597 INFO L93 Difference]: Finished difference Result 3173 states and 4456 transitions. [2022-03-20 12:18:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:33,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 239 [2022-03-20 12:18:33,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:33,600 INFO L225 Difference]: With dead ends: 3173 [2022-03-20 12:18:33,600 INFO L226 Difference]: Without dead ends: 1690 [2022-03-20 12:18:33,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=51, Invalid=297, Unknown=2, NotChecked=70, Total=420 [2022-03-20 12:18:33,602 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 108 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 247 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:33,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 478 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 232 Invalid, 1 Unknown, 247 Unchecked, 2.3s Time] [2022-03-20 12:18:33,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-03-20 12:18:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1445. [2022-03-20 12:18:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1440 states have (on average 1.395138888888889) internal successors, (2009), 1440 states have internal predecessors, (2009), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2013 transitions. [2022-03-20 12:18:33,629 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2013 transitions. Word has length 239 [2022-03-20 12:18:33,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:33,629 INFO L478 AbstractCegarLoop]: Abstraction has 1445 states and 2013 transitions. [2022-03-20 12:18:33,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2022-03-20 12:18:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2013 transitions. [2022-03-20 12:18:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-20 12:18:33,631 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:33,631 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:33,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 12:18:33,839 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,SelfDestructingSolverStorable50 [2022-03-20 12:18:33,840 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:33,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:33,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1064139512, now seen corresponding path program 1 times [2022-03-20 12:18:33,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:33,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076686231] [2022-03-20 12:18:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:33,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 363 proven. 44 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-20 12:18:34,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:34,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076686231] [2022-03-20 12:18:34,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076686231] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:34,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605077923] [2022-03-20 12:18:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:34,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:18:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:18:34,064 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) [2022-03-20 12:18:34,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 12:18:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:34,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-20 12:18:34,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:18:35,011 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:18:35,011 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 [2022-03-20 12:18:35,055 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:18:35,055 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 [2022-03-20 12:18:35,150 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 [2022-03-20 12:18:35,164 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 [2022-03-20 12:18:35,166 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 [2022-03-20 12:18:35,179 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 12:18:35,179 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 32 [2022-03-20 12:18:35,228 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 12:18:35,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-20 12:18:35,299 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 29 treesize of output 11 [2022-03-20 12:18:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 371 proven. 46 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-20 12:18:35,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:18:35,565 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 [2022-03-20 12:18:35,567 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 [2022-03-20 12:18:36,949 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_23 Int) (v_arrayElimCell_22 Int)) (not (= 8464 (select (select (store |c_#memory_int| v_arrayElimCell_22 (store (select |c_#memory_int| v_arrayElimCell_22) (+ 904 v_arrayElimCell_23) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) is different from false [2022-03-20 12:18:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-20 12:18:37,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605077923] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:37,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:18:37,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 7] total 14 [2022-03-20 12:18:37,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593343340] [2022-03-20 12:18:37,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:37,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:37,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:37,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:37,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-03-20 12:18:37,056 INFO L87 Difference]: Start difference. First operand 1445 states and 2013 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2022-03-20 12:18:39,061 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 [] [2022-03-20 12:18:41,365 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_23 Int) (v_arrayElimCell_22 Int)) (not (= 8464 (select (select (store |c_#memory_int| v_arrayElimCell_22 (store (select |c_#memory_int| v_arrayElimCell_22) (+ 904 v_arrayElimCell_23) 8640)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset))))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8464))) is different from false [2022-03-20 12:18:41,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:41,399 INFO L93 Difference]: Finished difference Result 3246 states and 4529 transitions. [2022-03-20 12:18:41,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:18:41,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 256 [2022-03-20 12:18:41,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:41,401 INFO L225 Difference]: With dead ends: 3246 [2022-03-20 12:18:41,401 INFO L226 Difference]: Without dead ends: 1829 [2022-03-20 12:18:41,402 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-03-20 12:18:41,403 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 109 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 239 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:41,403 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 478 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 236 Invalid, 1 Unknown, 239 Unchecked, 2.3s Time] [2022-03-20 12:18:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2022-03-20 12:18:41,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1499. [2022-03-20 12:18:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1494 states have (on average 1.390896921017403) internal successors, (2078), 1494 states have internal predecessors, (2078), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2082 transitions. [2022-03-20 12:18:41,430 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2082 transitions. Word has length 256 [2022-03-20 12:18:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:41,430 INFO L478 AbstractCegarLoop]: Abstraction has 1499 states and 2082 transitions. [2022-03-20 12:18:41,431 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2022-03-20 12:18:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2082 transitions. [2022-03-20 12:18:41,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-20 12:18:41,432 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:41,433 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:41,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 12:18:41,647 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 [2022-03-20 12:18:41,647 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:41,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1537658455, now seen corresponding path program 1 times [2022-03-20 12:18:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:41,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127915208] [2022-03-20 12:18:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 371 proven. 123 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 12:18:42,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127915208] [2022-03-20 12:18:42,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127915208] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013202939] [2022-03-20 12:18:42,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:42,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:18:42,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:18:42,001 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) [2022-03-20 12:18:42,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 12:18:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:42,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-20 12:18:42,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:18:42,959 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:18:42,959 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 [2022-03-20 12:18:43,063 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 [2022-03-20 12:18:43,080 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-20 12:18:43,080 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 42 treesize of output 38 [2022-03-20 12:18:43,111 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-03-20 12:18:43,111 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 33 treesize of output 26 [2022-03-20 12:18:43,115 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 [2022-03-20 12:18:43,206 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 12:18:43,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2022-03-20 12:18:43,209 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 45 treesize of output 33 [2022-03-20 12:18:43,225 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 12:18:43,225 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 [2022-03-20 12:18:43,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:43,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-03-20 12:18:43,290 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-20 12:18:43,290 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 2 case distinctions, treesize of input 39 treesize of output 42 [2022-03-20 12:18:43,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:43,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2022-03-20 12:18:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:43,509 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 34 treesize of output 33 [2022-03-20 12:18:43,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:18:43,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 23 [2022-03-20 12:18:43,548 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 [2022-03-20 12:18:43,579 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-20 12:18:43,580 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 32 treesize of output 54 [2022-03-20 12:18:43,676 INFO L356 Elim1Store]: treesize reduction 120, result has 24.1 percent of original size [2022-03-20 12:18:43,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 76 [2022-03-20 12:18:43,864 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:18:43,864 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 59 treesize of output 23 [2022-03-20 12:18:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 365 proven. 112 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 12:18:43,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:18:44,175 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 32 [2022-03-20 12:18:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 547 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-20 12:18:45,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013202939] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:45,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:18:45,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 13] total 26 [2022-03-20 12:18:45,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610419611] [2022-03-20 12:18:45,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:45,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:18:45,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:45,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:18:45,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2022-03-20 12:18:45,114 INFO L87 Difference]: Start difference. First operand 1499 states and 2082 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2022-03-20 12:18:47,120 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 [] [2022-03-20 12:18:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:47,447 INFO L93 Difference]: Finished difference Result 3201 states and 4454 transitions. [2022-03-20 12:18:47,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:18:47,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 256 [2022-03-20 12:18:47,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:47,449 INFO L225 Difference]: With dead ends: 3201 [2022-03-20 12:18:47,449 INFO L226 Difference]: Without dead ends: 1730 [2022-03-20 12:18:47,451 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-03-20 12:18:47,451 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 121 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:47,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 478 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 239 Invalid, 1 Unknown, 79 Unchecked, 2.3s Time] [2022-03-20 12:18:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2022-03-20 12:18:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1442. [2022-03-20 12:18:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1437 states have (on average 1.3917884481558802) internal successors, (2000), 1437 states have internal predecessors, (2000), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2004 transitions. [2022-03-20 12:18:47,477 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2004 transitions. Word has length 256 [2022-03-20 12:18:47,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:47,478 INFO L478 AbstractCegarLoop]: Abstraction has 1442 states and 2004 transitions. [2022-03-20 12:18:47,478 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2022-03-20 12:18:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2004 transitions. [2022-03-20 12:18:47,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 12:18:47,480 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:47,480 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:47,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 12:18:47,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:18:47,680 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1554797671, now seen corresponding path program 1 times [2022-03-20 12:18:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:47,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519865179] [2022-03-20 12:18:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:47,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:47,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-20 12:18:47,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:47,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519865179] [2022-03-20 12:18:47,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519865179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:47,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:47,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 12:18:47,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132246885] [2022-03-20 12:18:47,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:47,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 12:18:47,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 12:18:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:18:47,894 INFO L87 Difference]: Start difference. First operand 1442 states and 2004 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:49,902 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 [] [2022-03-20 12:18:50,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:50,446 INFO L93 Difference]: Finished difference Result 3153 states and 4390 transitions. [2022-03-20 12:18:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 12:18:50,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have 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 [2022-03-20 12:18:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:50,450 INFO L225 Difference]: With dead ends: 3153 [2022-03-20 12:18:50,450 INFO L226 Difference]: Without dead ends: 1739 [2022-03-20 12:18:50,451 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-20 12:18:50,451 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 203 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:50,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 597 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 581 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:18:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2022-03-20 12:18:50,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1502. [2022-03-20 12:18:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1497 states have (on average 1.3841015364061455) internal successors, (2072), 1497 states have internal predecessors, (2072), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2076 transitions. [2022-03-20 12:18:50,481 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2076 transitions. Word has length 257 [2022-03-20 12:18:50,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:50,481 INFO L478 AbstractCegarLoop]: Abstraction has 1502 states and 2076 transitions. [2022-03-20 12:18:50,481 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:50,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2076 transitions. [2022-03-20 12:18:50,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 12:18:50,483 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:50,484 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:18:50,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 12:18:50,484 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:50,484 INFO L85 PathProgramCache]: Analyzing trace with hash 239387674, now seen corresponding path program 1 times [2022-03-20 12:18:50,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:50,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927084631] [2022-03-20 12:18:50,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:50,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 409 proven. 69 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 12:18:50,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:50,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927084631] [2022-03-20 12:18:50,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927084631] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:50,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112892866] [2022-03-20 12:18:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:18:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:18:50,775 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) [2022-03-20 12:18:50,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 12:18:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:51,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-20 12:18:51,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:18:51,789 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:18:51,789 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 [2022-03-20 12:18:51,825 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:18:51,826 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 [2022-03-20 12:18:51,911 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 [2022-03-20 12:18:51,913 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 [2022-03-20 12:18:51,927 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 [2022-03-20 12:18:51,929 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 [2022-03-20 12:18:51,943 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 12:18:51,943 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 32 [2022-03-20 12:18:51,993 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 12:18:51,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-20 12:18:52,457 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 12:18:52,458 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 48 treesize of output 46 [2022-03-20 12:18:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 376 proven. 47 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-20 12:18:52,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:18:52,809 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 32 [2022-03-20 12:18:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-20 12:18:55,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112892866] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:18:55,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:18:55,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 7] total 18 [2022-03-20 12:18:55,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120394536] [2022-03-20 12:18:55,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:55,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:18:55,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:55,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:18:55,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-03-20 12:18:55,118 INFO L87 Difference]: Start difference. First operand 1502 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2022-03-20 12:18:57,124 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 [] [2022-03-20 12:18:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:18:57,440 INFO L93 Difference]: Finished difference Result 3205 states and 4440 transitions. [2022-03-20 12:18:57,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:18:57,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 257 [2022-03-20 12:18:57,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:18:57,446 INFO L225 Difference]: With dead ends: 3205 [2022-03-20 12:18:57,446 INFO L226 Difference]: Without dead ends: 1731 [2022-03-20 12:18:57,448 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 513 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-03-20 12:18:57,448 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 116 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:18:57,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 344 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 241 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:18:57,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-03-20 12:18:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1443. [2022-03-20 12:18:57,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.3748261474269818) internal successors, (1977), 1438 states have internal predecessors, (1977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:18:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1981 transitions. [2022-03-20 12:18:57,481 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1981 transitions. Word has length 257 [2022-03-20 12:18:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:18:57,482 INFO L478 AbstractCegarLoop]: Abstraction has 1443 states and 1981 transitions. [2022-03-20 12:18:57,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2022-03-20 12:18:57,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1981 transitions. [2022-03-20 12:18:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 12:18:57,484 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:18:57,484 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:18:57,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 12:18:57,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-03-20 12:18:57,708 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:18:57,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:18:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash 259054701, now seen corresponding path program 1 times [2022-03-20 12:18:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:18:57,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599037422] [2022-03-20 12:18:57,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:18:57,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:18:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:18:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:18:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-03-20 12:18:58,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:18:58,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599037422] [2022-03-20 12:18:58,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599037422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:18:58,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:18:58,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 12:18:58,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981999874] [2022-03-20 12:18:58,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:18:58,022 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 12:18:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:18:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 12:18:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 12:18:58,023 INFO L87 Difference]: Start difference. First operand 1443 states and 1981 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:19:00,031 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 [] [2022-03-20 12:19:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:19:00,448 INFO L93 Difference]: Finished difference Result 2879 states and 3954 transitions. [2022-03-20 12:19:00,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 12:19:00,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-20 12:19:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:19:00,451 INFO L225 Difference]: With dead ends: 2879 [2022-03-20 12:19:00,451 INFO L226 Difference]: Without dead ends: 1443 [2022-03-20 12:19:00,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:19:00,452 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:19:00,453 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:19:00,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-03-20 12:19:00,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2022-03-20 12:19:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1438 states have (on average 1.3741307371349096) internal successors, (1976), 1438 states have internal predecessors, (1976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:19:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1980 transitions. [2022-03-20 12:19:00,481 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1980 transitions. Word has length 268 [2022-03-20 12:19:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:19:00,481 INFO L478 AbstractCegarLoop]: Abstraction has 1443 states and 1980 transitions. [2022-03-20 12:19:00,481 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:19:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1980 transitions. [2022-03-20 12:19:00,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 12:19:00,483 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:19:00,483 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 12:19:00,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 12:19:00,484 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:19:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:19:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash 743691532, now seen corresponding path program 1 times [2022-03-20 12:19:00,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:19:00,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242745309] [2022-03-20 12:19:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:19:00,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:19:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:19:01,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:19:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:19:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 225 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 12:19:01,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:19:01,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242745309] [2022-03-20 12:19:01,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242745309] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:19:01,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634359635] [2022-03-20 12:19:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:19:01,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:19:01,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:19:01,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:19:01,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 12:19:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:19:02,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 195 conjunts are in the unsatisfiable core [2022-03-20 12:19:02,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:19:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,523 INFO L356 Elim1Store]: treesize reduction 776, result has 6.6 percent of original size [2022-03-20 12:19:04,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 15676 treesize of output 13409 [2022-03-20 12:19:04,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:19:04,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5980 treesize of output 875