/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:36:50,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:36:50,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:36:50,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:36:50,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:36:50,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:36:50,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:36:50,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:36:50,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:36:50,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:36:50,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:36:50,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:36:50,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:36:50,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:36:50,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:36:50,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:36:50,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:36:50,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:36:50,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:36:50,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:36:50,496 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:36:50,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:36:50,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:36:50,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:36:50,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:36:50,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-17 23:36:50,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:36:50,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:36:50,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:36:50,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:36:50,530 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:36:50,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:36:50,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:36:50,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:36:50,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:36:50,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:36:50,533 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:36:50,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:36:50,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:36:50,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:36:50,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:36:50,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:36:50,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:36:50,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:36:50,535 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:36:50,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:36:50,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:36:50,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:36:50,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:36:50,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:36:50,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:36:50,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:36:50,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:36:50,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:36:50,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:36:50,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:36:50,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:36:50,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:36:50,537 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:36:50,537 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:36:50,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:36:50,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:36:50,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:36:50,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:36:50,736 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:36:50,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-03-17 23:36:50,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddbaa08a6/af6eff3db8094f94acc8b45f142019ff/FLAG6c961ad0a [2022-03-17 23:36:51,267 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:36:51,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-03-17 23:36:51,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddbaa08a6/af6eff3db8094f94acc8b45f142019ff/FLAG6c961ad0a [2022-03-17 23:36:51,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddbaa08a6/af6eff3db8094f94acc8b45f142019ff [2022-03-17 23:36:51,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:36:51,314 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:36:51,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:36:51,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:36:51,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:36:51,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df12f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51, skipping insertion in model container [2022-03-17 23:36:51,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:36:51,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:36:51,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-03-17 23:36:51,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:36:51,736 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:36:51,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c[76536,76549] [2022-03-17 23:36:51,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:36:51,860 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:36:51,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51 WrapperNode [2022-03-17 23:36:51,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:36:51,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:36:51,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:36:51,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:36:51,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:51,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:36:51,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:36:51,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:36:51,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:36:52,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (1/1) ... [2022-03-17 23:36:52,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:36:52,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:36:52,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-17 23:36:52,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-17 23:36:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:36:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:36:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:36:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:36:52,140 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:36:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:36:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:36:52,141 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:36:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:36:52,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:36:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:36:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:36:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:36:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:36:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:36:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:36:52,319 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:36:52,320 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:36:53,291 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:36:53,741 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:36:53,741 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:36:53,751 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:36:53,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:36:53,761 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:36:53,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:36:53 BoogieIcfgContainer [2022-03-17 23:36:53,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:36:53,764 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:36:53,764 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:36:53,765 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:36:53,767 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:36:53" (1/1) ... [2022-03-17 23:36:53,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:36:53 BasicIcfg [2022-03-17 23:36:53,816 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:36:53,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:36:53,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:36:53,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:36:53,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:36:51" (1/4) ... [2022-03-17 23:36:53,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d29f50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:36:53, skipping insertion in model container [2022-03-17 23:36:53,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:51" (2/4) ... [2022-03-17 23:36:53,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d29f50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:36:53, skipping insertion in model container [2022-03-17 23:36:53,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:36:53" (3/4) ... [2022-03-17 23:36:53,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d29f50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:36:53, skipping insertion in model container [2022-03-17 23:36:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:36:53" (4/4) ... [2022-03-17 23:36:53,824 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cqvasr [2022-03-17 23:36:53,829 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:36:53,829 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:36:53,874 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:36:53,879 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-17 23:36:53,879 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:36:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-17 23:36:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-17 23:36:53,912 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:53,913 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:53,913 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:53,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:53,917 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-03-17 23:36:53,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:53,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969872080] [2022-03-17 23:36:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:53,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:36:54,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:54,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969872080] [2022-03-17 23:36:54,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969872080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:54,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:54,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:54,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574538735] [2022-03-17 23:36:54,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:54,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:54,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:54,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:54,377 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:55,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:58,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:00,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:00,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:00,889 INFO L93 Difference]: Finished difference Result 346 states and 584 transitions. [2022-03-17 23:37:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:00,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-17 23:37:00,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:00,898 INFO L225 Difference]: With dead ends: 346 [2022-03-17 23:37:00,898 INFO L226 Difference]: Without dead ends: 176 [2022-03-17 23:37:00,900 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:00,902 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 34 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:00,903 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 643 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:37:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-03-17 23:37:00,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2022-03-17 23:37:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.5714285714285714) internal successors, (242), 154 states have internal predecessors, (242), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 246 transitions. [2022-03-17 23:37:00,940 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 246 transitions. Word has length 50 [2022-03-17 23:37:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:00,940 INFO L478 AbstractCegarLoop]: Abstraction has 159 states and 246 transitions. [2022-03-17 23:37:00,940 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:00,940 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 246 transitions. [2022-03-17 23:37:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:37:00,942 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:00,942 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:00,942 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:37:00,942 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 630988424, now seen corresponding path program 1 times [2022-03-17 23:37:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:00,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371227854] [2022-03-17 23:37:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:01,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371227854] [2022-03-17 23:37:01,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371227854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:01,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:01,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:01,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026608852] [2022-03-17 23:37:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:01,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:01,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:01,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:01,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:01,101 INFO L87 Difference]: Start difference. First operand 159 states and 246 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:02,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:04,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:06,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:08,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:09,117 INFO L93 Difference]: Finished difference Result 416 states and 650 transitions. [2022-03-17 23:37:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-17 23:37:09,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:09,120 INFO L225 Difference]: With dead ends: 416 [2022-03-17 23:37:09,120 INFO L226 Difference]: Without dead ends: 283 [2022-03-17 23:37:09,121 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:09,121 INFO L912 BasicCegarLoop]: 285 mSDtfsCounter, 157 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:09,122 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 690 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 646 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-03-17 23:37:09,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-17 23:37:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 175. [2022-03-17 23:37:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5705882352941176) internal successors, (267), 170 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 271 transitions. [2022-03-17 23:37:09,144 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 271 transitions. Word has length 63 [2022-03-17 23:37:09,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:09,145 INFO L478 AbstractCegarLoop]: Abstraction has 175 states and 271 transitions. [2022-03-17 23:37:09,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:09,145 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 271 transitions. [2022-03-17 23:37:09,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:37:09,146 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:09,146 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:09,146 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:37:09,147 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1467054500, now seen corresponding path program 1 times [2022-03-17 23:37:09,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:09,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995696161] [2022-03-17 23:37:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:09,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:09,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:09,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995696161] [2022-03-17 23:37:09,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995696161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:09,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:09,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:09,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191809083] [2022-03-17 23:37:09,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:09,307 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:09,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:09,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:09,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:09,308 INFO L87 Difference]: Start difference. First operand 175 states and 271 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:10,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:12,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:14,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:15,268 INFO L93 Difference]: Finished difference Result 340 states and 525 transitions. [2022-03-17 23:37:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:15,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:37:15,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:15,270 INFO L225 Difference]: With dead ends: 340 [2022-03-17 23:37:15,270 INFO L226 Difference]: Without dead ends: 191 [2022-03-17 23:37:15,270 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:15,271 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:15,272 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:37:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-17 23:37:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-03-17 23:37:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5647058823529412) internal successors, (266), 170 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 270 transitions. [2022-03-17 23:37:15,281 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 270 transitions. Word has length 64 [2022-03-17 23:37:15,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:15,281 INFO L478 AbstractCegarLoop]: Abstraction has 175 states and 270 transitions. [2022-03-17 23:37:15,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:15,281 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 270 transitions. [2022-03-17 23:37:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:37:15,282 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:15,282 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:15,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:37:15,283 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:15,283 INFO L85 PathProgramCache]: Analyzing trace with hash 112607684, now seen corresponding path program 1 times [2022-03-17 23:37:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164792177] [2022-03-17 23:37:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:15,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:15,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:15,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164792177] [2022-03-17 23:37:15,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164792177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:15,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:15,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:15,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883835730] [2022-03-17 23:37:15,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:15,450 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:15,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:15,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:15,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:15,451 INFO L87 Difference]: Start difference. First operand 175 states and 270 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:18,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:20,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:21,268 INFO L93 Difference]: Finished difference Result 340 states and 524 transitions. [2022-03-17 23:37:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:37:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:21,269 INFO L225 Difference]: With dead ends: 340 [2022-03-17 23:37:21,269 INFO L226 Difference]: Without dead ends: 191 [2022-03-17 23:37:21,270 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:21,271 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 26 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:21,271 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:37:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-17 23:37:21,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 175. [2022-03-17 23:37:21,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.5588235294117647) internal successors, (265), 170 states have internal predecessors, (265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 269 transitions. [2022-03-17 23:37:21,285 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 269 transitions. Word has length 64 [2022-03-17 23:37:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:21,286 INFO L478 AbstractCegarLoop]: Abstraction has 175 states and 269 transitions. [2022-03-17 23:37:21,286 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 269 transitions. [2022-03-17 23:37:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:37:21,287 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:21,287 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:21,287 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:37:21,287 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:21,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2041150756, now seen corresponding path program 1 times [2022-03-17 23:37:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:21,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602210403] [2022-03-17 23:37:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:21,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:21,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602210403] [2022-03-17 23:37:21,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602210403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:21,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:21,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850621025] [2022-03-17 23:37:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:21,408 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:21,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:21,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:21,409 INFO L87 Difference]: Start difference. First operand 175 states and 269 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:23,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:25,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:28,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:28,517 INFO L93 Difference]: Finished difference Result 447 states and 698 transitions. [2022-03-17 23:37:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:28,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:37:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:28,519 INFO L225 Difference]: With dead ends: 447 [2022-03-17 23:37:28,519 INFO L226 Difference]: Without dead ends: 298 [2022-03-17 23:37:28,519 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:28,520 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 155 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:28,520 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 380 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-03-17 23:37:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-17 23:37:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 193. [2022-03-17 23:37:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5638297872340425) internal successors, (294), 188 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2022-03-17 23:37:28,526 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 64 [2022-03-17 23:37:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:28,526 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2022-03-17 23:37:28,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2022-03-17 23:37:28,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:37:28,527 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:28,527 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:28,528 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:37:28,528 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:28,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash -944554492, now seen corresponding path program 1 times [2022-03-17 23:37:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:28,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981840914] [2022-03-17 23:37:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:28,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:28,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:28,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:28,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:28,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981840914] [2022-03-17 23:37:28,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981840914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:28,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:28,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:28,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485992538] [2022-03-17 23:37:28,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:28,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:28,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:28,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:28,663 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:30,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:32,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:34,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:36,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:36,893 INFO L93 Difference]: Finished difference Result 373 states and 579 transitions. [2022-03-17 23:37:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:36,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-17 23:37:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:36,895 INFO L225 Difference]: With dead ends: 373 [2022-03-17 23:37:36,895 INFO L226 Difference]: Without dead ends: 206 [2022-03-17 23:37:36,896 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:36,896 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:36,896 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 366 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-03-17 23:37:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-17 23:37:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-03-17 23:37:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5585106382978724) internal successors, (293), 188 states have internal predecessors, (293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 297 transitions. [2022-03-17 23:37:36,901 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 297 transitions. Word has length 64 [2022-03-17 23:37:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:36,901 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 297 transitions. [2022-03-17 23:37:36,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 297 transitions. [2022-03-17 23:37:36,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:37:36,902 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:36,902 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:36,902 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:37:36,902 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:36,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:36,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1808385160, now seen corresponding path program 1 times [2022-03-17 23:37:36,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:36,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612400024] [2022-03-17 23:37:36,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:36,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:36,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:36,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612400024] [2022-03-17 23:37:36,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612400024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:36,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:36,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:36,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941551539] [2022-03-17 23:37:36,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:36,997 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:36,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:36,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:36,998 INFO L87 Difference]: Start difference. First operand 193 states and 297 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:39,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:39,362 INFO L93 Difference]: Finished difference Result 373 states and 578 transitions. [2022-03-17 23:37:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:39,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-17 23:37:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:39,363 INFO L225 Difference]: With dead ends: 373 [2022-03-17 23:37:39,363 INFO L226 Difference]: Without dead ends: 206 [2022-03-17 23:37:39,364 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:39,364 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 22 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:39,364 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 527 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:37:39,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-03-17 23:37:39,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 193. [2022-03-17 23:37:39,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.553191489361702) internal successors, (292), 188 states have internal predecessors, (292), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:39,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2022-03-17 23:37:39,369 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 65 [2022-03-17 23:37:39,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:39,369 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2022-03-17 23:37:39,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2022-03-17 23:37:39,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:37:39,370 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:39,370 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:39,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:37:39,370 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:39,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:39,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2131702600, now seen corresponding path program 1 times [2022-03-17 23:37:39,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:39,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171224394] [2022-03-17 23:37:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:39,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:39,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:39,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:39,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171224394] [2022-03-17 23:37:39,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171224394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:39,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:39,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:39,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073350300] [2022-03-17 23:37:39,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:39,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:39,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:39,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:39,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:39,481 INFO L87 Difference]: Start difference. First operand 193 states and 296 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:41,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:41,949 INFO L93 Difference]: Finished difference Result 465 states and 724 transitions. [2022-03-17 23:37:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:41,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 23:37:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:41,950 INFO L225 Difference]: With dead ends: 465 [2022-03-17 23:37:41,950 INFO L226 Difference]: Without dead ends: 298 [2022-03-17 23:37:41,951 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:41,951 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 158 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:41,951 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 380 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:37:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-17 23:37:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 193. [2022-03-17 23:37:41,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5372340425531914) internal successors, (289), 188 states have internal predecessors, (289), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 293 transitions. [2022-03-17 23:37:41,957 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 293 transitions. Word has length 66 [2022-03-17 23:37:41,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:41,957 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 293 transitions. [2022-03-17 23:37:41,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 293 transitions. [2022-03-17 23:37:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:37:41,958 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:41,958 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:41,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:37:41,958 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:41,958 INFO L85 PathProgramCache]: Analyzing trace with hash 887492427, now seen corresponding path program 1 times [2022-03-17 23:37:41,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:41,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815909211] [2022-03-17 23:37:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:41,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:42,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:42,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815909211] [2022-03-17 23:37:42,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815909211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:42,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:42,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843053526] [2022-03-17 23:37:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:42,050 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:42,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:42,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:42,051 INFO L87 Difference]: Start difference. First operand 193 states and 293 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:44,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:45,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:46,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:46,821 INFO L93 Difference]: Finished difference Result 363 states and 559 transitions. [2022-03-17 23:37:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:46,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 23:37:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:46,822 INFO L225 Difference]: With dead ends: 363 [2022-03-17 23:37:46,822 INFO L226 Difference]: Without dead ends: 196 [2022-03-17 23:37:46,823 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:46,823 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:46,823 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:37:46,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-03-17 23:37:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-03-17 23:37:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.5319148936170213) internal successors, (288), 188 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 292 transitions. [2022-03-17 23:37:46,828 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 292 transitions. Word has length 67 [2022-03-17 23:37:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:46,828 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 292 transitions. [2022-03-17 23:37:46,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 292 transitions. [2022-03-17 23:37:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 23:37:46,829 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:46,829 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:46,829 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:37:46,829 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash 545041914, now seen corresponding path program 1 times [2022-03-17 23:37:46,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:46,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518842525] [2022-03-17 23:37:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:46,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:46,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518842525] [2022-03-17 23:37:46,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518842525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:46,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:46,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:46,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074356760] [2022-03-17 23:37:46,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:46,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:46,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:46,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:46,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:46,925 INFO L87 Difference]: Start difference. First operand 193 states and 292 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:50,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:51,239 INFO L93 Difference]: Finished difference Result 484 states and 747 transitions. [2022-03-17 23:37:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:51,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 23:37:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:51,241 INFO L225 Difference]: With dead ends: 484 [2022-03-17 23:37:51,241 INFO L226 Difference]: Without dead ends: 317 [2022-03-17 23:37:51,241 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:51,242 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:51,242 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:37:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-17 23:37:51,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 233. [2022-03-17 23:37:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.5701754385964912) internal successors, (358), 228 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:51,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 362 transitions. [2022-03-17 23:37:51,247 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 362 transitions. Word has length 67 [2022-03-17 23:37:51,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:51,247 INFO L478 AbstractCegarLoop]: Abstraction has 233 states and 362 transitions. [2022-03-17 23:37:51,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 362 transitions. [2022-03-17 23:37:51,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 23:37:51,248 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:51,248 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:51,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:37:51,248 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:51,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:51,249 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-03-17 23:37:51,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:51,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699011405] [2022-03-17 23:37:51,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:51,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:51,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:37:51,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:51,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699011405] [2022-03-17 23:37:51,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699011405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:51,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:51,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:51,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177359713] [2022-03-17 23:37:51,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:51,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:51,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:51,343 INFO L87 Difference]: Start difference. First operand 233 states and 362 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:52,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:54,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:56,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:57,110 INFO L93 Difference]: Finished difference Result 545 states and 858 transitions. [2022-03-17 23:37:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:57,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-17 23:37:57,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:57,112 INFO L225 Difference]: With dead ends: 545 [2022-03-17 23:37:57,112 INFO L226 Difference]: Without dead ends: 338 [2022-03-17 23:37:57,112 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:37:57,112 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 132 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:57,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:37:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-03-17 23:37:57,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 255. [2022-03-17 23:37:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.604) internal successors, (401), 250 states have internal predecessors, (401), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:57,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 405 transitions. [2022-03-17 23:37:57,118 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 405 transitions. Word has length 68 [2022-03-17 23:37:57,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:57,118 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 405 transitions. [2022-03-17 23:37:57,118 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:57,118 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 405 transitions. [2022-03-17 23:37:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-17 23:37:57,119 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:57,120 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:37:57,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:37:57,120 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:57,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:57,121 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-03-17 23:37:57,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:57,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642293596] [2022-03-17 23:37:57,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:57,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-17 23:37:57,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:57,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642293596] [2022-03-17 23:37:57,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642293596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:57,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:57,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:57,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977558248] [2022-03-17 23:37:57,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:57,256 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:57,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:57,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:57,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:57,257 INFO L87 Difference]: Start difference. First operand 255 states and 405 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:37:58,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:00,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:00,914 INFO L93 Difference]: Finished difference Result 526 states and 842 transitions. [2022-03-17 23:38:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:00,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-17 23:38:00,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:00,916 INFO L225 Difference]: With dead ends: 526 [2022-03-17 23:38:00,916 INFO L226 Difference]: Without dead ends: 297 [2022-03-17 23:38:00,916 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:00,917 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:00,917 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 23:38:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-17 23:38:00,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 277. [2022-03-17 23:38:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.6029411764705883) internal successors, (436), 272 states have internal predecessors, (436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 440 transitions. [2022-03-17 23:38:00,922 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 440 transitions. Word has length 96 [2022-03-17 23:38:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:00,923 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 440 transitions. [2022-03-17 23:38:00,923 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) [2022-03-17 23:38:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 440 transitions. [2022-03-17 23:38:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:38:00,923 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:00,924 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:00,924 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:38:00,924 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-03-17 23:38:00,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:00,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895680219] [2022-03-17 23:38:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:00,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:38:01,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895680219] [2022-03-17 23:38:01,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895680219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:01,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:01,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:01,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154249710] [2022-03-17 23:38:01,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:01,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:01,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:01,025 INFO L87 Difference]: Start difference. First operand 277 states and 440 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:03,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:06,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:06,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:06,706 INFO L93 Difference]: Finished difference Result 541 states and 866 transitions. [2022-03-17 23:38:06,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:06,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:38:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:06,707 INFO L225 Difference]: With dead ends: 541 [2022-03-17 23:38:06,707 INFO L226 Difference]: Without dead ends: 290 [2022-03-17 23:38:06,708 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:06,708 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 21 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:06,709 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 612 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:38:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-03-17 23:38:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-03-17 23:38:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.599264705882353) internal successors, (435), 272 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 439 transitions. [2022-03-17 23:38:06,714 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 439 transitions. Word has length 110 [2022-03-17 23:38:06,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:06,714 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 439 transitions. [2022-03-17 23:38:06,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 439 transitions. [2022-03-17 23:38:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:38:06,715 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:06,715 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:06,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:38:06,715 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-03-17 23:38:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346381906] [2022-03-17 23:38:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:38:06,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:06,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346381906] [2022-03-17 23:38:06,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346381906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:06,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:06,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332830051] [2022-03-17 23:38:06,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:06,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:06,840 INFO L87 Difference]: Start difference. First operand 277 states and 439 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:08,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:09,205 INFO L93 Difference]: Finished difference Result 546 states and 872 transitions. [2022-03-17 23:38:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:09,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-17 23:38:09,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:09,212 INFO L225 Difference]: With dead ends: 546 [2022-03-17 23:38:09,212 INFO L226 Difference]: Without dead ends: 295 [2022-03-17 23:38:09,213 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:09,213 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 35 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:09,214 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 545 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:38:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-03-17 23:38:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 277. [2022-03-17 23:38:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5955882352941178) internal successors, (434), 272 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:09,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 438 transitions. [2022-03-17 23:38:09,220 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 438 transitions. Word has length 110 [2022-03-17 23:38:09,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:09,221 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 438 transitions. [2022-03-17 23:38:09,221 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:09,221 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 438 transitions. [2022-03-17 23:38:09,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-17 23:38:09,222 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:09,222 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:09,222 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:38:09,222 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:09,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:09,223 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-03-17 23:38:09,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:09,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164755215] [2022-03-17 23:38:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:09,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:09,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-17 23:38:09,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:09,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164755215] [2022-03-17 23:38:09,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164755215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:09,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:09,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:38:09,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143874632] [2022-03-17 23:38:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:09,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:38:09,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:09,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:38:09,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:09,337 INFO L87 Difference]: Start difference. First operand 277 states and 438 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:11,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:13,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:15,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:17,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:18,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:19,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:19,027 INFO L93 Difference]: Finished difference Result 537 states and 858 transitions. [2022-03-17 23:38:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:38:19,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-17 23:38:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:19,030 INFO L225 Difference]: With dead ends: 537 [2022-03-17 23:38:19,030 INFO L226 Difference]: Without dead ends: 286 [2022-03-17 23:38:19,031 INFO L911 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 [2022-03-17 23:38:19,031 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:19,031 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-03-17 23:38:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-17 23:38:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-03-17 23:38:19,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.583629893238434) internal successors, (445), 281 states have internal predecessors, (445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 449 transitions. [2022-03-17 23:38:19,036 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 449 transitions. Word has length 111 [2022-03-17 23:38:19,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:19,036 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 449 transitions. [2022-03-17 23:38:19,037 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) [2022-03-17 23:38:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 449 transitions. [2022-03-17 23:38:19,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-17 23:38:19,037 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:19,037 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:19,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:38:19,051 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:19,052 INFO L85 PathProgramCache]: Analyzing trace with hash -137183387, now seen corresponding path program 1 times [2022-03-17 23:38:19,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:19,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052324412] [2022-03-17 23:38:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:19,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:38:19,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:19,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052324412] [2022-03-17 23:38:19,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052324412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:19,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:19,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:19,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050370878] [2022-03-17 23:38:19,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:19,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:19,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:19,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:19,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:19,205 INFO L87 Difference]: Start difference. First operand 286 states and 449 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:21,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:23,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:25,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:26,144 INFO L93 Difference]: Finished difference Result 573 states and 903 transitions. [2022-03-17 23:38:26,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:26,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-17 23:38:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:26,146 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:38:26,146 INFO L226 Difference]: Without dead ends: 313 [2022-03-17 23:38:26,147 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:26,147 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 39 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:26,147 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:38:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-03-17 23:38:26,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-03-17 23:38:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5800711743772242) internal successors, (444), 281 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 448 transitions. [2022-03-17 23:38:26,154 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 448 transitions. Word has length 111 [2022-03-17 23:38:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:26,155 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 448 transitions. [2022-03-17 23:38:26,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 448 transitions. [2022-03-17 23:38:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-17 23:38:26,155 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:26,156 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:26,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:38:26,156 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:26,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash -488799095, now seen corresponding path program 1 times [2022-03-17 23:38:26,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:26,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189969453] [2022-03-17 23:38:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:38:26,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:26,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189969453] [2022-03-17 23:38:26,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189969453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:26,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:26,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:26,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696105394] [2022-03-17 23:38:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:26,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:26,246 INFO L87 Difference]: Start difference. First operand 286 states and 448 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:29,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:29,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:29,468 INFO L93 Difference]: Finished difference Result 573 states and 901 transitions. [2022-03-17 23:38:29,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:29,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-17 23:38:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:29,469 INFO L225 Difference]: With dead ends: 573 [2022-03-17 23:38:29,469 INFO L226 Difference]: Without dead ends: 313 [2022-03-17 23:38:29,470 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:29,470 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 37 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:29,470 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 23:38:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-03-17 23:38:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-03-17 23:38:29,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5765124555160142) internal successors, (443), 281 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:29,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 447 transitions. [2022-03-17 23:38:29,476 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 447 transitions. Word has length 112 [2022-03-17 23:38:29,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:29,476 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 447 transitions. [2022-03-17 23:38:29,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 447 transitions. [2022-03-17 23:38:29,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-17 23:38:29,477 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:29,477 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:29,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:38:29,477 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:29,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-03-17 23:38:29,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:29,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010565250] [2022-03-17 23:38:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:29,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:29,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:38:29,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:29,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010565250] [2022-03-17 23:38:29,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010565250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:29,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:29,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:29,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856000469] [2022-03-17 23:38:29,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:29,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:29,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:29,627 INFO L87 Difference]: Start difference. First operand 286 states and 447 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:32,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:35,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:35,382 INFO L93 Difference]: Finished difference Result 563 states and 886 transitions. [2022-03-17 23:38:35,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:35,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-17 23:38:35,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:35,383 INFO L225 Difference]: With dead ends: 563 [2022-03-17 23:38:35,383 INFO L226 Difference]: Without dead ends: 303 [2022-03-17 23:38:35,384 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:35,384 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 33 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:35,384 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 547 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:38:35,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-03-17 23:38:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 286. [2022-03-17 23:38:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5729537366548043) internal successors, (442), 281 states have internal predecessors, (442), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 446 transitions. [2022-03-17 23:38:35,389 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 446 transitions. Word has length 114 [2022-03-17 23:38:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:35,390 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 446 transitions. [2022-03-17 23:38:35,390 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) [2022-03-17 23:38:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 446 transitions. [2022-03-17 23:38:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:38:35,390 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:35,391 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:35,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:38:35,391 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-03-17 23:38:35,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:35,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694625028] [2022-03-17 23:38:35,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:35,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:35,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:35,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:35,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694625028] [2022-03-17 23:38:35,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694625028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:35,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:35,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:35,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742112794] [2022-03-17 23:38:35,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:35,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:35,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:35,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:35,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:35,484 INFO L87 Difference]: Start difference. First operand 286 states and 446 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:37,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:39,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:41,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:42,040 INFO L93 Difference]: Finished difference Result 655 states and 1027 transitions. [2022-03-17 23:38:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:42,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 23:38:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:42,042 INFO L225 Difference]: With dead ends: 655 [2022-03-17 23:38:42,042 INFO L226 Difference]: Without dead ends: 395 [2022-03-17 23:38:42,042 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:42,043 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 97 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:42,043 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 545 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:38:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-03-17 23:38:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 320. [2022-03-17 23:38:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.584126984126984) internal successors, (499), 315 states have internal predecessors, (499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 503 transitions. [2022-03-17 23:38:42,050 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 503 transitions. Word has length 118 [2022-03-17 23:38:42,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:42,050 INFO L478 AbstractCegarLoop]: Abstraction has 320 states and 503 transitions. [2022-03-17 23:38:42,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 503 transitions. [2022-03-17 23:38:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-17 23:38:42,051 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:42,051 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:42,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:38:42,052 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1710383652, now seen corresponding path program 1 times [2022-03-17 23:38:42,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:42,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10485431] [2022-03-17 23:38:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:42,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:42,159 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:42,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:42,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10485431] [2022-03-17 23:38:42,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10485431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:42,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:42,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:42,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198440570] [2022-03-17 23:38:42,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:42,160 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:42,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:42,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:42,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:42,161 INFO L87 Difference]: Start difference. First operand 320 states and 503 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:45,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:47,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:48,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:48,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:48,729 INFO L93 Difference]: Finished difference Result 782 states and 1243 transitions. [2022-03-17 23:38:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:48,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-17 23:38:48,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:48,731 INFO L225 Difference]: With dead ends: 782 [2022-03-17 23:38:48,731 INFO L226 Difference]: Without dead ends: 488 [2022-03-17 23:38:48,732 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:48,732 INFO L912 BasicCegarLoop]: 148 mSDtfsCounter, 138 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:48,732 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:38:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-03-17 23:38:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 350. [2022-03-17 23:38:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.6) internal successors, (552), 345 states have internal predecessors, (552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 556 transitions. [2022-03-17 23:38:48,739 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 556 transitions. Word has length 118 [2022-03-17 23:38:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:48,739 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 556 transitions. [2022-03-17 23:38:48,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 556 transitions. [2022-03-17 23:38:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:38:48,741 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:48,741 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:48,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:38:48,741 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:48,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-03-17 23:38:48,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:48,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258377436] [2022-03-17 23:38:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:48,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:48,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 23:38:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258377436] [2022-03-17 23:38:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258377436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:48,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:48,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:48,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084943775] [2022-03-17 23:38:48,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:48,831 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:48,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:48,831 INFO L87 Difference]: Start difference. First operand 350 states and 556 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:51,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:53,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:54,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:54,147 INFO L93 Difference]: Finished difference Result 756 states and 1201 transitions. [2022-03-17 23:38:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:38:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:54,149 INFO L225 Difference]: With dead ends: 756 [2022-03-17 23:38:54,149 INFO L226 Difference]: Without dead ends: 432 [2022-03-17 23:38:54,150 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:54,150 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 160 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:54,150 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 382 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-17 23:38:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-03-17 23:38:54,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 350. [2022-03-17 23:38:54,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5826086956521739) internal successors, (546), 345 states have internal predecessors, (546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 550 transitions. [2022-03-17 23:38:54,156 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 550 transitions. Word has length 123 [2022-03-17 23:38:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:54,156 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 550 transitions. [2022-03-17 23:38:54,157 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) [2022-03-17 23:38:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 550 transitions. [2022-03-17 23:38:54,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-17 23:38:54,157 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:54,158 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:54,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:38:54,158 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:54,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:54,158 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-03-17 23:38:54,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:54,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629850187] [2022-03-17 23:38:54,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:54,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:54,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:54,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629850187] [2022-03-17 23:38:54,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629850187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:54,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:54,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:54,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890030369] [2022-03-17 23:38:54,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:54,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:54,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:54,249 INFO L87 Difference]: Start difference. First operand 350 states and 550 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:57,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:59,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:59,763 INFO L93 Difference]: Finished difference Result 796 states and 1257 transitions. [2022-03-17 23:38:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:59,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-17 23:38:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:59,765 INFO L225 Difference]: With dead ends: 796 [2022-03-17 23:38:59,765 INFO L226 Difference]: Without dead ends: 472 [2022-03-17 23:38:59,766 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:38:59,766 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 133 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:59,766 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 382 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:38:59,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-17 23:38:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 387. [2022-03-17 23:38:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5916230366492146) internal successors, (608), 382 states have internal predecessors, (608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 612 transitions. [2022-03-17 23:38:59,773 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 612 transitions. Word has length 124 [2022-03-17 23:38:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:59,774 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 612 transitions. [2022-03-17 23:38:59,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 612 transitions. [2022-03-17 23:38:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-17 23:38:59,775 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:59,775 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:59,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:38:59,775 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-03-17 23:38:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:59,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849529579] [2022-03-17 23:38:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:38:59,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:59,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849529579] [2022-03-17 23:38:59,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849529579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:59,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:59,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:59,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683704800] [2022-03-17 23:38:59,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:59,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:59,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:59,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:59,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:59,911 INFO L87 Difference]: Start difference. First operand 387 states and 612 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:01,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:03,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:04,270 INFO L93 Difference]: Finished difference Result 830 states and 1313 transitions. [2022-03-17 23:39:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-17 23:39:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:04,272 INFO L225 Difference]: With dead ends: 830 [2022-03-17 23:39:04,272 INFO L226 Difference]: Without dead ends: 469 [2022-03-17 23:39:04,273 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:04,273 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 132 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:04,273 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 382 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 23:39:04,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-17 23:39:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 387. [2022-03-17 23:39:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5863874345549738) internal successors, (606), 382 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:04,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 610 transitions. [2022-03-17 23:39:04,280 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 610 transitions. Word has length 125 [2022-03-17 23:39:04,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:04,280 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 610 transitions. [2022-03-17 23:39:04,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 610 transitions. [2022-03-17 23:39:04,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:39:04,281 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:04,281 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:04,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:39:04,281 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-03-17 23:39:04,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:04,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516851936] [2022-03-17 23:39:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:39:04,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:04,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516851936] [2022-03-17 23:39:04,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516851936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:04,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:04,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:04,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750268317] [2022-03-17 23:39:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:04,371 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:04,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:04,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:04,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:04,372 INFO L87 Difference]: Start difference. First operand 387 states and 610 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:07,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:09,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:11,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:11,671 INFO L93 Difference]: Finished difference Result 837 states and 1324 transitions. [2022-03-17 23:39:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:39:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:11,673 INFO L225 Difference]: With dead ends: 837 [2022-03-17 23:39:11,673 INFO L226 Difference]: Without dead ends: 476 [2022-03-17 23:39:11,673 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:11,674 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 71 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:11,674 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 515 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-17 23:39:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-03-17 23:39:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 430. [2022-03-17 23:39:11,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.588235294117647) internal successors, (675), 425 states have internal predecessors, (675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 679 transitions. [2022-03-17 23:39:11,695 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 679 transitions. Word has length 132 [2022-03-17 23:39:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:11,695 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 679 transitions. [2022-03-17 23:39:11,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 679 transitions. [2022-03-17 23:39:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:39:11,696 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:11,696 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:11,696 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:39:11,696 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1447401699, now seen corresponding path program 1 times [2022-03-17 23:39:11,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:11,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809102161] [2022-03-17 23:39:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:39:11,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:11,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809102161] [2022-03-17 23:39:11,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809102161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:11,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:11,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:11,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727976700] [2022-03-17 23:39:11,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:11,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:11,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:11,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:11,808 INFO L87 Difference]: Start difference. First operand 430 states and 679 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:13,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:15,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:17,180 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 [] [2022-03-17 23:39:18,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:18,311 INFO L93 Difference]: Finished difference Result 916 states and 1447 transitions. [2022-03-17 23:39:18,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:18,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:39:18,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:18,313 INFO L225 Difference]: With dead ends: 916 [2022-03-17 23:39:18,314 INFO L226 Difference]: Without dead ends: 512 [2022-03-17 23:39:18,314 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:18,315 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:18,315 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 382 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:39:18,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-03-17 23:39:18,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 430. [2022-03-17 23:39:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 425 states have (on average 1.5741176470588236) internal successors, (669), 425 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 673 transitions. [2022-03-17 23:39:18,322 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 673 transitions. Word has length 132 [2022-03-17 23:39:18,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:18,322 INFO L478 AbstractCegarLoop]: Abstraction has 430 states and 673 transitions. [2022-03-17 23:39:18,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 673 transitions. [2022-03-17 23:39:18,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-17 23:39:18,323 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:18,323 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:18,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:39:18,323 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:18,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash -973481716, now seen corresponding path program 1 times [2022-03-17 23:39:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:18,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077747412] [2022-03-17 23:39:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:18,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:39:18,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:18,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077747412] [2022-03-17 23:39:18,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077747412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:18,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:18,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:18,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578663546] [2022-03-17 23:39:18,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:18,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:18,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:18,453 INFO L87 Difference]: Start difference. First operand 430 states and 673 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:20,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:23,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:24,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:24,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:24,751 INFO L93 Difference]: Finished difference Result 956 states and 1500 transitions. [2022-03-17 23:39:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:24,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-17 23:39:24,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:24,753 INFO L225 Difference]: With dead ends: 956 [2022-03-17 23:39:24,753 INFO L226 Difference]: Without dead ends: 552 [2022-03-17 23:39:24,754 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:24,754 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 124 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:24,754 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 383 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:39:24,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-03-17 23:39:24,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 473. [2022-03-17 23:39:24,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 468 states have (on average 1.579059829059829) internal successors, (739), 468 states have internal predecessors, (739), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 743 transitions. [2022-03-17 23:39:24,761 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 743 transitions. Word has length 132 [2022-03-17 23:39:24,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:24,761 INFO L478 AbstractCegarLoop]: Abstraction has 473 states and 743 transitions. [2022-03-17 23:39:24,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 743 transitions. [2022-03-17 23:39:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-17 23:39:24,762 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:24,762 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:24,762 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:39:24,762 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:24,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:24,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2147089946, now seen corresponding path program 1 times [2022-03-17 23:39:24,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:24,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959244823] [2022-03-17 23:39:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:24,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:24,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:39:24,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:24,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959244823] [2022-03-17 23:39:24,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959244823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:24,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:24,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:24,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746752292] [2022-03-17 23:39:24,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:24,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:24,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:24,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:24,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:24,848 INFO L87 Difference]: Start difference. First operand 473 states and 743 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:26,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:27,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:28,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:28,409 INFO L93 Difference]: Finished difference Result 1002 states and 1575 transitions. [2022-03-17 23:39:28,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:28,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-17 23:39:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:28,437 INFO L225 Difference]: With dead ends: 1002 [2022-03-17 23:39:28,437 INFO L226 Difference]: Without dead ends: 553 [2022-03-17 23:39:28,439 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:28,439 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 125 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:28,440 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 406 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 23:39:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-17 23:39:28,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 475. [2022-03-17 23:39:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.578723404255319) internal successors, (742), 470 states have internal predecessors, (742), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 746 transitions. [2022-03-17 23:39:28,447 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 746 transitions. Word has length 133 [2022-03-17 23:39:28,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:28,448 INFO L478 AbstractCegarLoop]: Abstraction has 475 states and 746 transitions. [2022-03-17 23:39:28,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:28,448 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 746 transitions. [2022-03-17 23:39:28,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:39:28,449 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:28,449 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:28,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:39:28,449 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:28,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:28,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1361439291, now seen corresponding path program 1 times [2022-03-17 23:39:28,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:28,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992567983] [2022-03-17 23:39:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:28,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:39:28,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:28,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992567983] [2022-03-17 23:39:28,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992567983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:28,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:28,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:28,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939203485] [2022-03-17 23:39:28,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:28,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:28,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:28,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:28,553 INFO L87 Difference]: Start difference. First operand 475 states and 746 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:29,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:31,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:33,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:34,427 INFO L93 Difference]: Finished difference Result 968 states and 1524 transitions. [2022-03-17 23:39:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:34,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:39:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:34,429 INFO L225 Difference]: With dead ends: 968 [2022-03-17 23:39:34,429 INFO L226 Difference]: Without dead ends: 519 [2022-03-17 23:39:34,430 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:34,430 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 98 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:34,430 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 545 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:39:34,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-03-17 23:39:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 475. [2022-03-17 23:39:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 470 states have (on average 1.5765957446808512) internal successors, (741), 470 states have internal predecessors, (741), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 745 transitions. [2022-03-17 23:39:34,438 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 745 transitions. Word has length 145 [2022-03-17 23:39:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:34,438 INFO L478 AbstractCegarLoop]: Abstraction has 475 states and 745 transitions. [2022-03-17 23:39:34,438 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:34,438 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 745 transitions. [2022-03-17 23:39:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:39:34,439 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:34,439 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:34,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:39:34,439 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-03-17 23:39:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120105788] [2022-03-17 23:39:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:34,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:39:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:34,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120105788] [2022-03-17 23:39:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120105788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:34,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:34,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:34,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876765616] [2022-03-17 23:39:34,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:34,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:34,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:34,557 INFO L87 Difference]: Start difference. First operand 475 states and 745 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:36,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:38,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:40,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:41,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:42,276 INFO L93 Difference]: Finished difference Result 1044 states and 1640 transitions. [2022-03-17 23:39:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:42,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:39:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:42,278 INFO L225 Difference]: With dead ends: 1044 [2022-03-17 23:39:42,278 INFO L226 Difference]: Without dead ends: 595 [2022-03-17 23:39:42,279 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:42,279 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 136 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:42,280 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-03-17 23:39:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-17 23:39:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 505. [2022-03-17 23:39:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 500 states have (on average 1.568) internal successors, (784), 500 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 788 transitions. [2022-03-17 23:39:42,287 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 788 transitions. Word has length 145 [2022-03-17 23:39:42,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:42,288 INFO L478 AbstractCegarLoop]: Abstraction has 505 states and 788 transitions. [2022-03-17 23:39:42,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 788 transitions. [2022-03-17 23:39:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:39:42,289 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:42,289 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:42,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:39:42,289 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:42,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2132992452, now seen corresponding path program 1 times [2022-03-17 23:39:42,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:42,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167859331] [2022-03-17 23:39:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:39:42,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167859331] [2022-03-17 23:39:42,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167859331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:42,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:42,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:42,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254569188] [2022-03-17 23:39:42,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:42,383 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:42,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:42,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:42,384 INFO L87 Difference]: Start difference. First operand 505 states and 788 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:44,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:46,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:48,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:49,179 INFO L93 Difference]: Finished difference Result 1070 states and 1675 transitions. [2022-03-17 23:39:49,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:49,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-17 23:39:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:49,181 INFO L225 Difference]: With dead ends: 1070 [2022-03-17 23:39:49,181 INFO L226 Difference]: Without dead ends: 591 [2022-03-17 23:39:49,188 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:49,189 INFO L912 BasicCegarLoop]: 283 mSDtfsCounter, 99 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:49,189 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 691 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 608 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:39:49,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-03-17 23:39:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 517. [2022-03-17 23:39:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.564453125) internal successors, (801), 512 states have internal predecessors, (801), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:49,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 805 transitions. [2022-03-17 23:39:49,196 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 805 transitions. Word has length 145 [2022-03-17 23:39:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:49,197 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 805 transitions. [2022-03-17 23:39:49,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 805 transitions. [2022-03-17 23:39:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:39:49,198 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:49,198 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:49,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:39:49,198 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:49,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-03-17 23:39:49,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:49,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795734525] [2022-03-17 23:39:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:39:49,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:49,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795734525] [2022-03-17 23:39:49,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795734525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:49,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:49,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:49,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223095593] [2022-03-17 23:39:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:49,295 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:49,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:49,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:49,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:49,295 INFO L87 Difference]: Start difference. First operand 517 states and 805 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:51,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:54,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:54,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:54,718 INFO L93 Difference]: Finished difference Result 1086 states and 1692 transitions. [2022-03-17 23:39:54,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:54,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:39:54,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:54,720 INFO L225 Difference]: With dead ends: 1086 [2022-03-17 23:39:54,720 INFO L226 Difference]: Without dead ends: 595 [2022-03-17 23:39:54,721 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:54,721 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 135 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:54,721 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:39:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-17 23:39:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-03-17 23:39:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.55078125) internal successors, (794), 512 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 798 transitions. [2022-03-17 23:39:54,730 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 798 transitions. Word has length 146 [2022-03-17 23:39:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:54,730 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 798 transitions. [2022-03-17 23:39:54,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 798 transitions. [2022-03-17 23:39:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-17 23:39:54,731 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:54,731 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:54,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:39:54,731 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1632396797, now seen corresponding path program 1 times [2022-03-17 23:39:54,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:54,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449953155] [2022-03-17 23:39:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:54,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:39:54,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:54,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449953155] [2022-03-17 23:39:54,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449953155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:54,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:54,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:54,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735338046] [2022-03-17 23:39:54,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:54,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:54,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:54,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:54,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:54,858 INFO L87 Difference]: Start difference. First operand 517 states and 798 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:56,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:39:57,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:39:57,299 INFO L93 Difference]: Finished difference Result 1086 states and 1678 transitions. [2022-03-17 23:39:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:39:57,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-17 23:39:57,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:39:57,301 INFO L225 Difference]: With dead ends: 1086 [2022-03-17 23:39:57,301 INFO L226 Difference]: Without dead ends: 595 [2022-03-17 23:39:57,302 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:39:57,302 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 152 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:39:57,302 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:39:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-17 23:39:57,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-03-17 23:39:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.533203125) internal successors, (785), 512 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 789 transitions. [2022-03-17 23:39:57,310 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 789 transitions. Word has length 146 [2022-03-17 23:39:57,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:39:57,310 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 789 transitions. [2022-03-17 23:39:57,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:57,310 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 789 transitions. [2022-03-17 23:39:57,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 23:39:57,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:39:57,311 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:39:57,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:39:57,312 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:39:57,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:39:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash 895862080, now seen corresponding path program 1 times [2022-03-17 23:39:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:39:57,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026013361] [2022-03-17 23:39:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:39:57,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:39:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:39:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:39:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:39:57,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:39:57,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026013361] [2022-03-17 23:39:57,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026013361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:39:57,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:39:57,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:39:57,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655413266] [2022-03-17 23:39:57,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:39:57,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:39:57,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:39:57,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:39:57,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:39:57,432 INFO L87 Difference]: Start difference. First operand 517 states and 789 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:39:59,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:01,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:03,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:03,870 INFO L93 Difference]: Finished difference Result 1040 states and 1595 transitions. [2022-03-17 23:40:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 23:40:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:03,872 INFO L225 Difference]: With dead ends: 1040 [2022-03-17 23:40:03,872 INFO L226 Difference]: Without dead ends: 549 [2022-03-17 23:40:03,872 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:03,873 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 83 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:03,873 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 535 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:40:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-17 23:40:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 517. [2022-03-17 23:40:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.53125) internal successors, (784), 512 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 788 transitions. [2022-03-17 23:40:03,883 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 788 transitions. Word has length 148 [2022-03-17 23:40:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:03,883 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 788 transitions. [2022-03-17 23:40:03,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 788 transitions. [2022-03-17 23:40:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 23:40:03,884 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:03,885 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:03,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:40:03,885 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash -302873185, now seen corresponding path program 1 times [2022-03-17 23:40:03,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:03,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009414230] [2022-03-17 23:40:03,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:03,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:03,999 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 23:40:03,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:03,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009414230] [2022-03-17 23:40:03,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009414230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:03,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:03,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:03,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828155376] [2022-03-17 23:40:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:04,000 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:04,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:04,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:04,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:04,001 INFO L87 Difference]: Start difference. First operand 517 states and 788 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:06,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:08,471 INFO L93 Difference]: Finished difference Result 1086 states and 1658 transitions. [2022-03-17 23:40:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:08,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 23:40:08,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:08,474 INFO L225 Difference]: With dead ends: 1086 [2022-03-17 23:40:08,474 INFO L226 Difference]: Without dead ends: 595 [2022-03-17 23:40:08,475 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:08,476 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 149 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:08,477 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 408 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:40:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-03-17 23:40:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 517. [2022-03-17 23:40:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 512 states have (on average 1.515625) internal successors, (776), 512 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 780 transitions. [2022-03-17 23:40:08,484 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 780 transitions. Word has length 148 [2022-03-17 23:40:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:08,484 INFO L478 AbstractCegarLoop]: Abstraction has 517 states and 780 transitions. [2022-03-17 23:40:08,484 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:08,485 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 780 transitions. [2022-03-17 23:40:08,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-17 23:40:08,485 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:08,486 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:08,486 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:40:08,486 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:08,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:08,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1357257888, now seen corresponding path program 1 times [2022-03-17 23:40:08,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:08,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837808751] [2022-03-17 23:40:08,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:08,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:40:08,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:08,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837808751] [2022-03-17 23:40:08,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837808751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:08,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:08,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:08,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983579411] [2022-03-17 23:40:08,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:08,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:08,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:08,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:08,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:08,602 INFO L87 Difference]: Start difference. First operand 517 states and 780 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:10,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:12,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:14,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:15,092 INFO L93 Difference]: Finished difference Result 1128 states and 1706 transitions. [2022-03-17 23:40:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:15,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-17 23:40:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:15,095 INFO L225 Difference]: With dead ends: 1128 [2022-03-17 23:40:15,095 INFO L226 Difference]: Without dead ends: 637 [2022-03-17 23:40:15,096 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:15,096 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 135 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:15,096 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 408 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-17 23:40:15,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-03-17 23:40:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 545. [2022-03-17 23:40:15,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.5037037037037038) internal successors, (812), 540 states have internal predecessors, (812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 816 transitions. [2022-03-17 23:40:15,104 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 816 transitions. Word has length 149 [2022-03-17 23:40:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:15,104 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 816 transitions. [2022-03-17 23:40:15,104 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:15,104 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 816 transitions. [2022-03-17 23:40:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 23:40:15,105 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:15,105 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:15,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:40:15,105 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:15,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:15,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1644895615, now seen corresponding path program 1 times [2022-03-17 23:40:15,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:15,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477894516] [2022-03-17 23:40:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:15,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:40:15,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:15,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477894516] [2022-03-17 23:40:15,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477894516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:15,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:15,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:15,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453554238] [2022-03-17 23:40:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:15,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:15,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:15,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:15,201 INFO L87 Difference]: Start difference. First operand 545 states and 816 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:16,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:18,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:20,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:22,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:22,594 INFO L93 Difference]: Finished difference Result 1142 states and 1714 transitions. [2022-03-17 23:40:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:22,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-17 23:40:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:22,596 INFO L225 Difference]: With dead ends: 1142 [2022-03-17 23:40:22,596 INFO L226 Difference]: Without dead ends: 623 [2022-03-17 23:40:22,597 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:22,597 INFO L912 BasicCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:22,597 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 384 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:40:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-03-17 23:40:22,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 545. [2022-03-17 23:40:22,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 540 states have (on average 1.488888888888889) internal successors, (804), 540 states have internal predecessors, (804), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 808 transitions. [2022-03-17 23:40:22,604 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 808 transitions. Word has length 150 [2022-03-17 23:40:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:22,605 INFO L478 AbstractCegarLoop]: Abstraction has 545 states and 808 transitions. [2022-03-17 23:40:22,605 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 808 transitions. [2022-03-17 23:40:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-17 23:40:22,606 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:22,606 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:22,606 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:40:22,606 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:22,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1425004022, now seen corresponding path program 1 times [2022-03-17 23:40:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:22,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369619542] [2022-03-17 23:40:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:22,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:40:22,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:22,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369619542] [2022-03-17 23:40:22,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369619542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:22,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:22,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:22,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330238392] [2022-03-17 23:40:22,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:22,699 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:22,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:22,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:22,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:22,700 INFO L87 Difference]: Start difference. First operand 545 states and 808 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:25,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:27,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:27,305 INFO L93 Difference]: Finished difference Result 1184 states and 1760 transitions. [2022-03-17 23:40:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:27,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-17 23:40:27,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:27,307 INFO L225 Difference]: With dead ends: 1184 [2022-03-17 23:40:27,307 INFO L226 Difference]: Without dead ends: 665 [2022-03-17 23:40:27,308 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:27,308 INFO L912 BasicCegarLoop]: 132 mSDtfsCounter, 127 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:27,309 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 384 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:40:27,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-03-17 23:40:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 580. [2022-03-17 23:40:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4817391304347827) internal successors, (852), 575 states have internal predecessors, (852), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 856 transitions. [2022-03-17 23:40:27,317 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 856 transitions. Word has length 157 [2022-03-17 23:40:27,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:27,317 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 856 transitions. [2022-03-17 23:40:27,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 856 transitions. [2022-03-17 23:40:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 23:40:27,318 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:27,319 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:27,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:40:27,319 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash -469188179, now seen corresponding path program 1 times [2022-03-17 23:40:27,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:27,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021943335] [2022-03-17 23:40:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:27,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:40:27,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:27,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021943335] [2022-03-17 23:40:27,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021943335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:27,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:27,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:27,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909009417] [2022-03-17 23:40:27,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:27,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:27,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:27,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:27,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:27,431 INFO L87 Difference]: Start difference. First operand 580 states and 856 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:29,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:31,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:32,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:32,148 INFO L93 Difference]: Finished difference Result 1155 states and 1712 transitions. [2022-03-17 23:40:32,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:32,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-17 23:40:32,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:32,150 INFO L225 Difference]: With dead ends: 1155 [2022-03-17 23:40:32,150 INFO L226 Difference]: Without dead ends: 601 [2022-03-17 23:40:32,150 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:32,151 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 46 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:32,151 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 557 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 23:40:32,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-03-17 23:40:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 580. [2022-03-17 23:40:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.48) internal successors, (851), 575 states have internal predecessors, (851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 855 transitions. [2022-03-17 23:40:32,158 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 855 transitions. Word has length 158 [2022-03-17 23:40:32,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:32,159 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 855 transitions. [2022-03-17 23:40:32,159 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 855 transitions. [2022-03-17 23:40:32,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 23:40:32,160 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:32,160 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:32,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:40:32,160 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:32,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:32,160 INFO L85 PathProgramCache]: Analyzing trace with hash 612620108, now seen corresponding path program 1 times [2022-03-17 23:40:32,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:32,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762591859] [2022-03-17 23:40:32,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:32,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:40:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:32,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762591859] [2022-03-17 23:40:32,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762591859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:32,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:32,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653900280] [2022-03-17 23:40:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:32,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:32,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:32,258 INFO L87 Difference]: Start difference. First operand 580 states and 855 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:34,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:34,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:34,741 INFO L93 Difference]: Finished difference Result 1212 states and 1792 transitions. [2022-03-17 23:40:34,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-17 23:40:34,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:34,743 INFO L225 Difference]: With dead ends: 1212 [2022-03-17 23:40:34,743 INFO L226 Difference]: Without dead ends: 658 [2022-03-17 23:40:34,744 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:34,744 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 126 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:34,745 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:40:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-03-17 23:40:34,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 580. [2022-03-17 23:40:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4730434782608695) internal successors, (847), 575 states have internal predecessors, (847), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 851 transitions. [2022-03-17 23:40:34,765 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 851 transitions. Word has length 158 [2022-03-17 23:40:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:34,766 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 851 transitions. [2022-03-17 23:40:34,766 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 851 transitions. [2022-03-17 23:40:34,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-17 23:40:34,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:34,767 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:34,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:40:34,767 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:34,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -689331971, now seen corresponding path program 1 times [2022-03-17 23:40:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:34,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010731518] [2022-03-17 23:40:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:34,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:34,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:34,882 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-03-17 23:40:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:34,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010731518] [2022-03-17 23:40:34,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010731518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:34,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:34,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:40:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534268571] [2022-03-17 23:40:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:34,882 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:40:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:40:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:40:34,883 INFO L87 Difference]: Start difference. First operand 580 states and 851 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:37,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:39,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:40,149 INFO L93 Difference]: Finished difference Result 1155 states and 1702 transitions. [2022-03-17 23:40:40,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:40:40,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-17 23:40:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:40,151 INFO L225 Difference]: With dead ends: 1155 [2022-03-17 23:40:40,151 INFO L226 Difference]: Without dead ends: 601 [2022-03-17 23:40:40,152 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:40,152 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:40,152 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 571 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:40:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-03-17 23:40:40,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 580. [2022-03-17 23:40:40,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.471304347826087) internal successors, (846), 575 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:40,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 850 transitions. [2022-03-17 23:40:40,160 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 850 transitions. Word has length 167 [2022-03-17 23:40:40,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:40,160 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 850 transitions. [2022-03-17 23:40:40,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 850 transitions. [2022-03-17 23:40:40,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-17 23:40:40,161 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:40,162 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:40,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:40:40,162 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:40,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:40,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1330418114, now seen corresponding path program 1 times [2022-03-17 23:40:40,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:40,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093344749] [2022-03-17 23:40:40,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:40,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-17 23:40:40,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:40,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093344749] [2022-03-17 23:40:40,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093344749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:40,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:40,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:40:40,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078762913] [2022-03-17 23:40:40,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:40,286 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:40:40,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:40,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:40:40,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:40:40,286 INFO L87 Difference]: Start difference. First operand 580 states and 850 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:43,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:45,425 INFO L93 Difference]: Finished difference Result 1134 states and 1670 transitions. [2022-03-17 23:40:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-17 23:40:45,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-17 23:40:45,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:45,427 INFO L225 Difference]: With dead ends: 1134 [2022-03-17 23:40:45,427 INFO L226 Difference]: Without dead ends: 580 [2022-03-17 23:40:45,427 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:40:45,428 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 162 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:45,428 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:40:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-03-17 23:40:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-03-17 23:40:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 575 states have (on average 1.4695652173913043) internal successors, (845), 575 states have internal predecessors, (845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 849 transitions. [2022-03-17 23:40:45,436 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 849 transitions. Word has length 167 [2022-03-17 23:40:45,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:45,436 INFO L478 AbstractCegarLoop]: Abstraction has 580 states and 849 transitions. [2022-03-17 23:40:45,436 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 849 transitions. [2022-03-17 23:40:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:40:45,438 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:45,438 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:45,438 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:40:45,438 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1418766410, now seen corresponding path program 1 times [2022-03-17 23:40:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:45,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900644209] [2022-03-17 23:40:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 23:40:45,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:45,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900644209] [2022-03-17 23:40:45,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900644209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:45,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:45,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:40:45,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315039159] [2022-03-17 23:40:45,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:45,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:40:45,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:45,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:40:45,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:45,560 INFO L87 Difference]: Start difference. First operand 580 states and 849 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:48,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:50,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:50,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:50,481 INFO L93 Difference]: Finished difference Result 1685 states and 2485 transitions. [2022-03-17 23:40:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:40:50,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:40:50,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:50,484 INFO L225 Difference]: With dead ends: 1685 [2022-03-17 23:40:50,485 INFO L226 Difference]: Without dead ends: 1131 [2022-03-17 23:40:50,485 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:50,486 INFO L912 BasicCegarLoop]: 263 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:50,486 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 457 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 328 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:40:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-03-17 23:40:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2022-03-17 23:40:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1126 states have (on average 1.4618117229129663) internal successors, (1646), 1126 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1650 transitions. [2022-03-17 23:40:50,509 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1650 transitions. Word has length 173 [2022-03-17 23:40:50,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:50,509 INFO L478 AbstractCegarLoop]: Abstraction has 1131 states and 1650 transitions. [2022-03-17 23:40:50,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1650 transitions. [2022-03-17 23:40:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:40:50,511 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:50,511 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:50,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:40:50,511 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 511464439, now seen corresponding path program 1 times [2022-03-17 23:40:50,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:50,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824268591] [2022-03-17 23:40:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:50,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-17 23:40:50,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:50,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824268591] [2022-03-17 23:40:50,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824268591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:50,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:50,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:40:50,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412015788] [2022-03-17 23:40:50,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:50,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:40:50,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:50,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:40:50,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:50,601 INFO L87 Difference]: Start difference. First operand 1131 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:51,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:53,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:55,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:55,474 INFO L93 Difference]: Finished difference Result 2263 states and 3307 transitions. [2022-03-17 23:40:55,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:40:55,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:40:55,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:55,477 INFO L225 Difference]: With dead ends: 2263 [2022-03-17 23:40:55,477 INFO L226 Difference]: Without dead ends: 1158 [2022-03-17 23:40:55,478 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:55,496 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:55,497 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:40:55,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-17 23:40:55,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2022-03-17 23:40:55,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1153 states have (on average 1.4579358196010408) internal successors, (1681), 1153 states have internal predecessors, (1681), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1685 transitions. [2022-03-17 23:40:55,512 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1685 transitions. Word has length 173 [2022-03-17 23:40:55,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:55,513 INFO L478 AbstractCegarLoop]: Abstraction has 1158 states and 1685 transitions. [2022-03-17 23:40:55,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:55,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1685 transitions. [2022-03-17 23:40:55,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-17 23:40:55,515 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:55,515 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:55,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:40:55,516 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1477027256, now seen corresponding path program 1 times [2022-03-17 23:40:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:55,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193029736] [2022-03-17 23:40:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:55,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:55,597 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-17 23:40:55,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:55,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193029736] [2022-03-17 23:40:55,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193029736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:55,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:55,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:40:55,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924864361] [2022-03-17 23:40:55,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:55,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:40:55,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:55,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:40:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:55,598 INFO L87 Difference]: Start difference. First operand 1158 states and 1685 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:57,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:58,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:40:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:40:59,010 INFO L93 Difference]: Finished difference Result 2292 states and 3343 transitions. [2022-03-17 23:40:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:40:59,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-17 23:40:59,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:40:59,014 INFO L225 Difference]: With dead ends: 2292 [2022-03-17 23:40:59,014 INFO L226 Difference]: Without dead ends: 1160 [2022-03-17 23:40:59,015 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:59,016 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:40:59,017 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 23:40:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-03-17 23:40:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1160. [2022-03-17 23:40:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1155 states have (on average 1.457142857142857) internal successors, (1683), 1155 states have internal predecessors, (1683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1687 transitions. [2022-03-17 23:40:59,032 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1687 transitions. Word has length 173 [2022-03-17 23:40:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:40:59,033 INFO L478 AbstractCegarLoop]: Abstraction has 1160 states and 1687 transitions. [2022-03-17 23:40:59,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:40:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1687 transitions. [2022-03-17 23:40:59,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-17 23:40:59,034 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:40:59,034 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:40:59,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:40:59,035 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:40:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:40:59,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1780826272, now seen corresponding path program 1 times [2022-03-17 23:40:59,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:40:59,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814073957] [2022-03-17 23:40:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:40:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:40:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:59,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:40:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:40:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-17 23:40:59,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:40:59,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814073957] [2022-03-17 23:40:59,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814073957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:40:59,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:40:59,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:40:59,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718432774] [2022-03-17 23:40:59,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:40:59,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:40:59,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:40:59,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:40:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:40:59,154 INFO L87 Difference]: Start difference. First operand 1160 states and 1687 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:01,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:03,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:04,004 INFO L93 Difference]: Finished difference Result 2843 states and 4159 transitions. [2022-03-17 23:41:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-17 23:41:04,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:04,009 INFO L225 Difference]: With dead ends: 2843 [2022-03-17 23:41:04,009 INFO L226 Difference]: Without dead ends: 1711 [2022-03-17 23:41:04,011 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:04,011 INFO L912 BasicCegarLoop]: 395 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:04,011 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:41:04,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2022-03-17 23:41:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2022-03-17 23:41:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1706 states have (on average 1.4560375146541618) internal successors, (2484), 1706 states have internal predecessors, (2484), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2488 transitions. [2022-03-17 23:41:04,034 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2488 transitions. Word has length 197 [2022-03-17 23:41:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:04,035 INFO L478 AbstractCegarLoop]: Abstraction has 1711 states and 2488 transitions. [2022-03-17 23:41:04,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2488 transitions. [2022-03-17 23:41:04,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-17 23:41:04,037 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:04,037 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:04,037 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:41:04,037 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:04,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:04,038 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-03-17 23:41:04,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:04,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750729860] [2022-03-17 23:41:04,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-17 23:41:04,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:04,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750729860] [2022-03-17 23:41:04,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750729860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:04,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:04,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838496994] [2022-03-17 23:41:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:04,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:04,198 INFO L87 Difference]: Start difference. First operand 1711 states and 2488 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:05,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:06,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:08,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:08,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:08,594 INFO L93 Difference]: Finished difference Result 3945 states and 5761 transitions. [2022-03-17 23:41:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:08,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-17 23:41:08,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:08,600 INFO L225 Difference]: With dead ends: 3945 [2022-03-17 23:41:08,600 INFO L226 Difference]: Without dead ends: 2262 [2022-03-17 23:41:08,603 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:08,603 INFO L912 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:08,603 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:41:08,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-03-17 23:41:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2262. [2022-03-17 23:41:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 2257 states have (on average 1.4554718653079308) internal successors, (3285), 2257 states have internal predecessors, (3285), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3289 transitions. [2022-03-17 23:41:08,658 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3289 transitions. Word has length 202 [2022-03-17 23:41:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:08,659 INFO L478 AbstractCegarLoop]: Abstraction has 2262 states and 3289 transitions. [2022-03-17 23:41:08,659 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3289 transitions. [2022-03-17 23:41:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-17 23:41:08,661 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:08,661 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:08,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:41:08,662 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:08,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-03-17 23:41:08,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:08,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272716931] [2022-03-17 23:41:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:08,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-17 23:41:08,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:08,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272716931] [2022-03-17 23:41:08,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272716931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:08,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:08,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:08,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991234825] [2022-03-17 23:41:08,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:08,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:08,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:08,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:08,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:08,790 INFO L87 Difference]: Start difference. First operand 2262 states and 3289 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:10,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:12,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:13,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:14,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:14,246 INFO L93 Difference]: Finished difference Result 5048 states and 7364 transitions. [2022-03-17 23:41:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:14,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-17 23:41:14,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:14,252 INFO L225 Difference]: With dead ends: 5048 [2022-03-17 23:41:14,252 INFO L226 Difference]: Without dead ends: 2814 [2022-03-17 23:41:14,255 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:14,255 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:14,255 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 23:41:14,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-03-17 23:41:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 2814. [2022-03-17 23:41:14,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 2809 states have (on average 1.4571021715913137) internal successors, (4093), 2809 states have internal predecessors, (4093), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:14,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 4097 transitions. [2022-03-17 23:41:14,295 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 4097 transitions. Word has length 202 [2022-03-17 23:41:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:14,296 INFO L478 AbstractCegarLoop]: Abstraction has 2814 states and 4097 transitions. [2022-03-17 23:41:14,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 4097 transitions. [2022-03-17 23:41:14,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-17 23:41:14,300 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:14,300 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:14,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 23:41:14,300 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:14,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:14,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-03-17 23:41:14,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:14,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675389340] [2022-03-17 23:41:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:14,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:14,440 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-17 23:41:14,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:14,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675389340] [2022-03-17 23:41:14,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675389340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:14,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:14,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:14,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935125720] [2022-03-17 23:41:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:14,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:14,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:14,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:14,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:14,441 INFO L87 Difference]: Start difference. First operand 2814 states and 4097 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:15,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:17,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:19,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:20,147 INFO L93 Difference]: Finished difference Result 6146 states and 8971 transitions. [2022-03-17 23:41:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-03-17 23:41:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:20,153 INFO L225 Difference]: With dead ends: 6146 [2022-03-17 23:41:20,153 INFO L226 Difference]: Without dead ends: 3360 [2022-03-17 23:41:20,156 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:20,156 INFO L912 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:20,157 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 455 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:41:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-03-17 23:41:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3360. [2022-03-17 23:41:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3355 states have (on average 1.456929955290611) internal successors, (4888), 3355 states have internal predecessors, (4888), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4892 transitions. [2022-03-17 23:41:20,225 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4892 transitions. Word has length 275 [2022-03-17 23:41:20,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:20,225 INFO L478 AbstractCegarLoop]: Abstraction has 3360 states and 4892 transitions. [2022-03-17 23:41:20,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4892 transitions. [2022-03-17 23:41:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-17 23:41:20,229 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:20,229 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:20,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 23:41:20,229 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:20,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-03-17 23:41:20,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:20,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325480154] [2022-03-17 23:41:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:20,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-17 23:41:20,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:20,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325480154] [2022-03-17 23:41:20,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325480154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:20,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:20,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:20,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458506288] [2022-03-17 23:41:20,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:20,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:20,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:20,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:20,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:20,343 INFO L87 Difference]: Start difference. First operand 3360 states and 4892 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:22,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:23,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:23,261 INFO L93 Difference]: Finished difference Result 7211 states and 10522 transitions. [2022-03-17 23:41:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:23,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-03-17 23:41:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:23,268 INFO L225 Difference]: With dead ends: 7211 [2022-03-17 23:41:23,268 INFO L226 Difference]: Without dead ends: 3879 [2022-03-17 23:41:23,272 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:23,272 INFO L912 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:23,272 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 23:41:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2022-03-17 23:41:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3879. [2022-03-17 23:41:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 3874 states have (on average 1.4563758389261745) internal successors, (5642), 3874 states have internal predecessors, (5642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5646 transitions. [2022-03-17 23:41:23,324 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5646 transitions. Word has length 275 [2022-03-17 23:41:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:23,324 INFO L478 AbstractCegarLoop]: Abstraction has 3879 states and 5646 transitions. [2022-03-17 23:41:23,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5646 transitions. [2022-03-17 23:41:23,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-17 23:41:23,329 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:23,329 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:23,329 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 23:41:23,329 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:23,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash 273465922, now seen corresponding path program 1 times [2022-03-17 23:41:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:23,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56920106] [2022-03-17 23:41:23,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:23,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-03-17 23:41:23,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:23,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56920106] [2022-03-17 23:41:23,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56920106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:23,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:23,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:23,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787770328] [2022-03-17 23:41:23,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:23,470 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:23,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:23,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:23,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:23,471 INFO L87 Difference]: Start difference. First operand 3879 states and 5646 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:25,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:27,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:29,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:29,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:29,565 INFO L93 Difference]: Finished difference Result 8244 states and 12022 transitions. [2022-03-17 23:41:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:29,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-03-17 23:41:29,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:29,591 INFO L225 Difference]: With dead ends: 8244 [2022-03-17 23:41:29,591 INFO L226 Difference]: Without dead ends: 4393 [2022-03-17 23:41:29,596 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:29,597 INFO L912 BasicCegarLoop]: 397 mSDtfsCounter, 157 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:29,597 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:41:29,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2022-03-17 23:41:29,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4393. [2022-03-17 23:41:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 4388 states have (on average 1.455788514129444) internal successors, (6388), 4388 states have internal predecessors, (6388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 6392 transitions. [2022-03-17 23:41:29,694 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 6392 transitions. Word has length 275 [2022-03-17 23:41:29,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:29,695 INFO L478 AbstractCegarLoop]: Abstraction has 4393 states and 6392 transitions. [2022-03-17 23:41:29,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:29,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 6392 transitions. [2022-03-17 23:41:29,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-17 23:41:29,700 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:29,701 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:29,701 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 23:41:29,701 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:29,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash -245826365, now seen corresponding path program 1 times [2022-03-17 23:41:29,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:29,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119372182] [2022-03-17 23:41:29,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:29,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-03-17 23:41:29,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:29,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119372182] [2022-03-17 23:41:29,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119372182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:29,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:29,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:29,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68214877] [2022-03-17 23:41:29,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:29,825 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:29,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:29,825 INFO L87 Difference]: Start difference. First operand 4393 states and 6392 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:31,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:33,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:34,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:34,085 INFO L93 Difference]: Finished difference Result 9274 states and 13516 transitions. [2022-03-17 23:41:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:34,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-03-17 23:41:34,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:34,093 INFO L225 Difference]: With dead ends: 9274 [2022-03-17 23:41:34,093 INFO L226 Difference]: Without dead ends: 4909 [2022-03-17 23:41:34,100 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:34,100 INFO L912 BasicCegarLoop]: 397 mSDtfsCounter, 187 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:34,100 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 23:41:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2022-03-17 23:41:34,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 4909. [2022-03-17 23:41:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4909 states, 4904 states have (on average 1.4551386623164764) internal successors, (7136), 4904 states have internal predecessors, (7136), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4909 states to 4909 states and 7140 transitions. [2022-03-17 23:41:34,192 INFO L78 Accepts]: Start accepts. Automaton has 4909 states and 7140 transitions. Word has length 275 [2022-03-17 23:41:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:34,192 INFO L478 AbstractCegarLoop]: Abstraction has 4909 states and 7140 transitions. [2022-03-17 23:41:34,192 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 4909 states and 7140 transitions. [2022-03-17 23:41:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-03-17 23:41:34,199 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:34,199 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:34,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 23:41:34,200 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:34,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:34,200 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-03-17 23:41:34,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:34,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303243792] [2022-03-17 23:41:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:34,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-17 23:41:34,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:34,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303243792] [2022-03-17 23:41:34,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303243792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:34,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:34,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:34,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771984903] [2022-03-17 23:41:34,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:34,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:34,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:34,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:34,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:34,420 INFO L87 Difference]: Start difference. First operand 4909 states and 7140 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:37,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:38,438 INFO L93 Difference]: Finished difference Result 10337 states and 15059 transitions. [2022-03-17 23:41:38,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:38,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 398 [2022-03-17 23:41:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:38,445 INFO L225 Difference]: With dead ends: 10337 [2022-03-17 23:41:38,445 INFO L226 Difference]: Without dead ends: 5456 [2022-03-17 23:41:38,450 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:38,451 INFO L912 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:38,451 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:41:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2022-03-17 23:41:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5456. [2022-03-17 23:41:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5451 states have (on average 1.4551458447991195) internal successors, (7932), 5451 states have internal predecessors, (7932), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 7936 transitions. [2022-03-17 23:41:38,518 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 7936 transitions. Word has length 398 [2022-03-17 23:41:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:38,518 INFO L478 AbstractCegarLoop]: Abstraction has 5456 states and 7936 transitions. [2022-03-17 23:41:38,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 7936 transitions. [2022-03-17 23:41:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-03-17 23:41:38,537 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:38,538 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:38,538 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 23:41:38,538 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:38,539 INFO L85 PathProgramCache]: Analyzing trace with hash 32899640, now seen corresponding path program 1 times [2022-03-17 23:41:38,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:38,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946770236] [2022-03-17 23:41:38,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:38,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-03-17 23:41:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946770236] [2022-03-17 23:41:38,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946770236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:38,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:38,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061609977] [2022-03-17 23:41:38,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:38,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:38,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:38,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:38,734 INFO L87 Difference]: Start difference. First operand 5456 states and 7936 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:40,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:42,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:43,770 INFO L93 Difference]: Finished difference Result 11399 states and 16603 transitions. [2022-03-17 23:41:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:43,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-03-17 23:41:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:43,785 INFO L225 Difference]: With dead ends: 11399 [2022-03-17 23:41:43,785 INFO L226 Difference]: Without dead ends: 5971 [2022-03-17 23:41:43,819 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:43,819 INFO L912 BasicCegarLoop]: 394 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:43,819 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:41:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5971 states. [2022-03-17 23:41:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5971 to 5971. [2022-03-17 23:41:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5971 states, 5966 states have (on average 1.4549111632584646) internal successors, (8680), 5966 states have internal predecessors, (8680), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:43,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 8684 transitions. [2022-03-17 23:41:43,941 INFO L78 Accepts]: Start accepts. Automaton has 5971 states and 8684 transitions. Word has length 399 [2022-03-17 23:41:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:43,941 INFO L478 AbstractCegarLoop]: Abstraction has 5971 states and 8684 transitions. [2022-03-17 23:41:43,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:43,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5971 states and 8684 transitions. [2022-03-17 23:41:43,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-03-17 23:41:43,949 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:43,949 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:43,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 23:41:43,949 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:43,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash -383046196, now seen corresponding path program 1 times [2022-03-17 23:41:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:43,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440146877] [2022-03-17 23:41:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:43,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:44,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-03-17 23:41:44,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:44,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440146877] [2022-03-17 23:41:44,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440146877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:44,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:44,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:41:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401390122] [2022-03-17 23:41:44,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:44,133 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:41:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:41:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:44,133 INFO L87 Difference]: Start difference. First operand 5971 states and 8684 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:45,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:47,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:49,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:49,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:49,748 INFO L93 Difference]: Finished difference Result 12420 states and 18088 transitions. [2022-03-17 23:41:49,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:41:49,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 400 [2022-03-17 23:41:49,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:49,755 INFO L225 Difference]: With dead ends: 12420 [2022-03-17 23:41:49,756 INFO L226 Difference]: Without dead ends: 6477 [2022-03-17 23:41:49,762 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:41:49,763 INFO L912 BasicCegarLoop]: 396 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:49,763 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 590 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:41:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6477 states. [2022-03-17 23:41:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6477 to 6477. [2022-03-17 23:41:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6472 states have (on average 1.4550370828182941) internal successors, (9417), 6472 states have internal predecessors, (9417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 9421 transitions. [2022-03-17 23:41:49,874 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 9421 transitions. Word has length 400 [2022-03-17 23:41:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:49,874 INFO L478 AbstractCegarLoop]: Abstraction has 6477 states and 9421 transitions. [2022-03-17 23:41:49,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 9421 transitions. [2022-03-17 23:41:49,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-03-17 23:41:49,884 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:49,884 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:49,884 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 23:41:49,884 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:49,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:49,885 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-03-17 23:41:49,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:49,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755372490] [2022-03-17 23:41:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:49,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-03-17 23:41:50,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:50,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755372490] [2022-03-17 23:41:50,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755372490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:41:50,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:41:50,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:41:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104460555] [2022-03-17 23:41:50,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:41:50,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:41:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:41:50,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:41:50,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:41:50,142 INFO L87 Difference]: Start difference. First operand 6477 states and 9421 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:53,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:55,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:41:56,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:41:56,257 INFO L93 Difference]: Finished difference Result 13801 states and 19982 transitions. [2022-03-17 23:41:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:41:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-03-17 23:41:56,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:41:56,265 INFO L225 Difference]: With dead ends: 13801 [2022-03-17 23:41:56,266 INFO L226 Difference]: Without dead ends: 7352 [2022-03-17 23:41:56,273 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:41:56,274 INFO L912 BasicCegarLoop]: 269 mSDtfsCounter, 50 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:41:56,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 663 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 550 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:41:56,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7352 states. [2022-03-17 23:41:56,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7352 to 6969. [2022-03-17 23:41:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6969 states, 6964 states have (on average 1.452182653647329) internal successors, (10113), 6964 states have internal predecessors, (10113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6969 states to 6969 states and 10117 transitions. [2022-03-17 23:41:56,458 INFO L78 Accepts]: Start accepts. Automaton has 6969 states and 10117 transitions. Word has length 524 [2022-03-17 23:41:56,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:41:56,458 INFO L478 AbstractCegarLoop]: Abstraction has 6969 states and 10117 transitions. [2022-03-17 23:41:56,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:41:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 6969 states and 10117 transitions. [2022-03-17 23:41:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-03-17 23:41:56,469 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:41:56,469 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:41:56,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 23:41:56,469 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:41:56,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:41:56,470 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-03-17 23:41:56,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:41:56,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942899264] [2022-03-17 23:41:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:56,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:41:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:41:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1698 proven. 480 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-03-17 23:41:57,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:41:57,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942899264] [2022-03-17 23:41:57,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942899264] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:41:57,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945058214] [2022-03-17 23:41:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:41:57,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:41:57,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:41:57,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:41:57,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:41:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:41:58,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-17 23:41:58,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:41:58,544 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:41:58,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:41:58,638 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:41:58,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 23:41:58,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:41:58,993 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:41:58,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:41:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:41:59,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:41:59,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 23:41:59,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 23:41:59,148 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-03-17 23:41:59,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 77 [2022-03-17 23:41:59,266 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-17 23:41:59,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 48 [2022-03-17 23:41:59,475 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:41:59,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:41:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-03-17 23:41:59,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:41:59,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-17 23:42:00,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-17 23:42:03,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-03-17 23:42:03,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945058214] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:42:03,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:42:03,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 14] total 29 [2022-03-17 23:42:03,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800649986] [2022-03-17 23:42:03,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:03,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:42:03,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:03,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:42:03,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=707, Unknown=1, NotChecked=0, Total=812 [2022-03-17 23:42:03,974 INFO L87 Difference]: Start difference. First operand 6969 states and 10117 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:05,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:13,662 INFO L93 Difference]: Finished difference Result 19721 states and 28513 transitions. [2022-03-17 23:42:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:42:13,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-03-17 23:42:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:13,677 INFO L225 Difference]: With dead ends: 19721 [2022-03-17 23:42:13,678 INFO L226 Difference]: Without dead ends: 12780 [2022-03-17 23:42:13,687 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=133, Invalid=920, Unknown=3, NotChecked=0, Total=1056 [2022-03-17 23:42:13,687 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 430 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:13,687 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 954 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 531 Invalid, 1 Unknown, 188 Unchecked, 2.6s Time] [2022-03-17 23:42:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12780 states. [2022-03-17 23:42:13,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12780 to 10942. [2022-03-17 23:42:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10942 states, 10937 states have (on average 1.4653927036664534) internal successors, (16027), 10937 states have internal predecessors, (16027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:13,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10942 states to 10942 states and 16031 transitions. [2022-03-17 23:42:13,892 INFO L78 Accepts]: Start accepts. Automaton has 10942 states and 16031 transitions. Word has length 524 [2022-03-17 23:42:13,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:13,892 INFO L478 AbstractCegarLoop]: Abstraction has 10942 states and 16031 transitions. [2022-03-17 23:42:13,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 10942 states and 16031 transitions. [2022-03-17 23:42:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-17 23:42:13,942 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:13,942 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:13,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-17 23:42:14,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-03-17 23:42:14,143 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:14,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-03-17 23:42:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:14,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146730839] [2022-03-17 23:42:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-03-17 23:42:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:14,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146730839] [2022-03-17 23:42:14,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146730839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:14,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:14,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:14,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299896383] [2022-03-17 23:42:14,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:14,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:14,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:14,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:14,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:14,442 INFO L87 Difference]: Start difference. First operand 10942 states and 16031 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:16,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:17,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:17,071 INFO L93 Difference]: Finished difference Result 22426 states and 32730 transitions. [2022-03-17 23:42:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:17,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 525 [2022-03-17 23:42:17,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:17,111 INFO L225 Difference]: With dead ends: 22426 [2022-03-17 23:42:17,112 INFO L226 Difference]: Without dead ends: 11416 [2022-03-17 23:42:17,119 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:17,120 INFO L912 BasicCegarLoop]: 268 mSDtfsCounter, 49 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:17,120 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 661 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 543 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 23:42:17,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-03-17 23:42:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 10858. [2022-03-17 23:42:17,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.466967658711877) internal successors, (15921), 10853 states have internal predecessors, (15921), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15925 transitions. [2022-03-17 23:42:17,310 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15925 transitions. Word has length 525 [2022-03-17 23:42:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:17,311 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15925 transitions. [2022-03-17 23:42:17,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15925 transitions. [2022-03-17 23:42:17,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-03-17 23:42:17,321 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:17,323 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 11, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:17,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 23:42:17,323 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:17,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:17,323 INFO L85 PathProgramCache]: Analyzing trace with hash 707414919, now seen corresponding path program 1 times [2022-03-17 23:42:17,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:17,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579759812] [2022-03-17 23:42:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:17,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2687 backedges. 1167 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2022-03-17 23:42:17,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:17,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579759812] [2022-03-17 23:42:17,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579759812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:17,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:17,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:17,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947540978] [2022-03-17 23:42:17,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:17,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:17,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:17,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:17,577 INFO L87 Difference]: Start difference. First operand 10858 states and 15925 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:19,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:20,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:22,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:24,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:25,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:25,211 INFO L93 Difference]: Finished difference Result 22246 states and 32506 transitions. [2022-03-17 23:42:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:25,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 526 [2022-03-17 23:42:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:25,271 INFO L225 Difference]: With dead ends: 22246 [2022-03-17 23:42:25,271 INFO L226 Difference]: Without dead ends: 11416 [2022-03-17 23:42:25,280 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:25,281 INFO L912 BasicCegarLoop]: 267 mSDtfsCounter, 55 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:25,281 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 659 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-17 23:42:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-03-17 23:42:25,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 10858. [2022-03-17 23:42:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.464940569427808) internal successors, (15899), 10853 states have internal predecessors, (15899), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15903 transitions. [2022-03-17 23:42:25,515 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15903 transitions. Word has length 526 [2022-03-17 23:42:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:25,516 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15903 transitions. [2022-03-17 23:42:25,516 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:25,516 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15903 transitions. [2022-03-17 23:42:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-03-17 23:42:25,528 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:25,528 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:25,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 23:42:25,529 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:25,529 INFO L85 PathProgramCache]: Analyzing trace with hash 578027630, now seen corresponding path program 1 times [2022-03-17 23:42:25,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:25,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434975142] [2022-03-17 23:42:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:25,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2698 backedges. 1178 proven. 0 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2022-03-17 23:42:25,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:25,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434975142] [2022-03-17 23:42:25,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434975142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:25,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:25,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:25,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209500507] [2022-03-17 23:42:25,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:25,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:25,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:25,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:25,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:25,805 INFO L87 Difference]: Start difference. First operand 10858 states and 15903 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:27,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:29,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:31,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:32,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:33,317 INFO L93 Difference]: Finished difference Result 22202 states and 32396 transitions. [2022-03-17 23:42:33,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:33,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 527 [2022-03-17 23:42:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:33,330 INFO L225 Difference]: With dead ends: 22202 [2022-03-17 23:42:33,330 INFO L226 Difference]: Without dead ends: 11372 [2022-03-17 23:42:33,341 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:33,341 INFO L912 BasicCegarLoop]: 266 mSDtfsCounter, 52 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:33,341 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 657 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:42:33,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11372 states. [2022-03-17 23:42:33,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11372 to 10858. [2022-03-17 23:42:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.4629134801437391) internal successors, (15877), 10853 states have internal predecessors, (15877), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15881 transitions. [2022-03-17 23:42:33,563 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15881 transitions. Word has length 527 [2022-03-17 23:42:33,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:33,564 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15881 transitions. [2022-03-17 23:42:33,564 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:33,564 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15881 transitions. [2022-03-17 23:42:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2022-03-17 23:42:33,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:33,576 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:33,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 23:42:33,576 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:33,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:33,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1419801683, now seen corresponding path program 1 times [2022-03-17 23:42:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:33,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370909145] [2022-03-17 23:42:33,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:33,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:33,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:33,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2630 backedges. 1079 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-03-17 23:42:33,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:33,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370909145] [2022-03-17 23:42:33,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370909145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:33,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:33,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:33,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676078263] [2022-03-17 23:42:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:33,774 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:33,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:33,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:33,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:33,775 INFO L87 Difference]: Start difference. First operand 10858 states and 15881 transitions. Second operand has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:35,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:36,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:38,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:39,982 INFO L93 Difference]: Finished difference Result 22082 states and 32208 transitions. [2022-03-17 23:42:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:39,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 539 [2022-03-17 23:42:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:39,992 INFO L225 Difference]: With dead ends: 22082 [2022-03-17 23:42:39,992 INFO L226 Difference]: Without dead ends: 11252 [2022-03-17 23:42:39,998 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:39,999 INFO L912 BasicCegarLoop]: 259 mSDtfsCounter, 59 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:39,999 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 643 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-17 23:42:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-03-17 23:42:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 10858. [2022-03-17 23:42:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.46088639085967) internal successors, (15855), 10853 states have internal predecessors, (15855), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15859 transitions. [2022-03-17 23:42:40,150 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15859 transitions. Word has length 539 [2022-03-17 23:42:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:40,150 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15859 transitions. [2022-03-17 23:42:40,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.0) internal successors, (190), 4 states have internal predecessors, (190), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15859 transitions. [2022-03-17 23:42:40,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-03-17 23:42:40,162 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:40,162 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:40,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-17 23:42:40,162 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:40,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:40,163 INFO L85 PathProgramCache]: Analyzing trace with hash 742695721, now seen corresponding path program 1 times [2022-03-17 23:42:40,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:40,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488866261] [2022-03-17 23:42:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:40,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1314 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-03-17 23:42:40,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:40,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488866261] [2022-03-17 23:42:40,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488866261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:40,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:40,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:40,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163996692] [2022-03-17 23:42:40,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:40,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:40,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:40,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:40,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:40,458 INFO L87 Difference]: Start difference. First operand 10858 states and 15859 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:42,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:44,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:46,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:47,635 INFO L93 Difference]: Finished difference Result 22082 states and 32164 transitions. [2022-03-17 23:42:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:47,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 540 [2022-03-17 23:42:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:47,647 INFO L225 Difference]: With dead ends: 22082 [2022-03-17 23:42:47,648 INFO L226 Difference]: Without dead ends: 11252 [2022-03-17 23:42:47,678 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:47,679 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:47,679 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 641 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:42:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2022-03-17 23:42:47,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 10858. [2022-03-17 23:42:47,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10858 states, 10853 states have (on average 1.4588593015756013) internal successors, (15833), 10853 states have internal predecessors, (15833), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10858 states to 10858 states and 15837 transitions. [2022-03-17 23:42:47,841 INFO L78 Accepts]: Start accepts. Automaton has 10858 states and 15837 transitions. Word has length 540 [2022-03-17 23:42:47,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:47,841 INFO L478 AbstractCegarLoop]: Abstraction has 10858 states and 15837 transitions. [2022-03-17 23:42:47,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:47,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10858 states and 15837 transitions. [2022-03-17 23:42:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-03-17 23:42:47,853 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:47,853 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:47,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 23:42:47,853 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:47,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1479219579, now seen corresponding path program 1 times [2022-03-17 23:42:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:47,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344412073] [2022-03-17 23:42:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:47,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 1323 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-03-17 23:42:48,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:48,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344412073] [2022-03-17 23:42:48,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344412073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:48,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:48,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:48,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814944287] [2022-03-17 23:42:48,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:48,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:48,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:48,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:48,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:48,097 INFO L87 Difference]: Start difference. First operand 10858 states and 15837 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:50,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:50,582 INFO L93 Difference]: Finished difference Result 21952 states and 31962 transitions. [2022-03-17 23:42:50,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:50,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 541 [2022-03-17 23:42:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:50,596 INFO L225 Difference]: With dead ends: 21952 [2022-03-17 23:42:50,596 INFO L226 Difference]: Without dead ends: 10924 [2022-03-17 23:42:50,607 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:50,607 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 29 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:50,607 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 625 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:42:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-03-17 23:42:50,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10660. [2022-03-17 23:42:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4653214453308305) internal successors, (15613), 10655 states have internal predecessors, (15613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15617 transitions. [2022-03-17 23:42:50,808 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15617 transitions. Word has length 541 [2022-03-17 23:42:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:50,808 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15617 transitions. [2022-03-17 23:42:50,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15617 transitions. [2022-03-17 23:42:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-03-17 23:42:50,819 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:50,820 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:50,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-17 23:42:50,820 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:50,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-03-17 23:42:50,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:50,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367202852] [2022-03-17 23:42:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-03-17 23:42:51,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:51,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367202852] [2022-03-17 23:42:51,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367202852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:42:51,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:42:51,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:42:51,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913094917] [2022-03-17 23:42:51,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:42:51,022 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:42:51,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:42:51,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:42:51,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:42:51,022 INFO L87 Difference]: Start difference. First operand 10660 states and 15617 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:53,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:56,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:58,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:42:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:42:58,583 INFO L93 Difference]: Finished difference Result 21556 states and 31522 transitions. [2022-03-17 23:42:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:42:58,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-03-17 23:42:58,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:42:58,594 INFO L225 Difference]: With dead ends: 21556 [2022-03-17 23:42:58,594 INFO L226 Difference]: Without dead ends: 10924 [2022-03-17 23:42:58,599 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:42:58,602 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 30 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:42:58,602 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 623 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 436 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-17 23:42:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-03-17 23:42:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 10660. [2022-03-17 23:42:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4632566870014079) internal successors, (15591), 10655 states have internal predecessors, (15591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15595 transitions. [2022-03-17 23:42:58,758 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15595 transitions. Word has length 546 [2022-03-17 23:42:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:42:58,759 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15595 transitions. [2022-03-17 23:42:58,759 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:42:58,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15595 transitions. [2022-03-17 23:42:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-03-17 23:42:58,771 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:42:58,771 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:42:58,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-17 23:42:58,772 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:42:58,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:42:58,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1541769972, now seen corresponding path program 1 times [2022-03-17 23:42:58,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:42:58,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419772038] [2022-03-17 23:42:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:58,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:42:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:42:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:42:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1135 proven. 46 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2022-03-17 23:42:59,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:42:59,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419772038] [2022-03-17 23:42:59,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419772038] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:42:59,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170200080] [2022-03-17 23:42:59,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:42:59,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:42:59,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:42:59,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:42:59,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 23:43:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:00,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 2546 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 23:43:00,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:43:00,453 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:43:00,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:43:00,493 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:43:00,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:43:00,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:43:00,966 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:43:00,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:43:01,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-17 23:43:01,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1130 proven. 238 refuted. 0 times theorem prover too weak. 1438 trivial. 0 not checked. [2022-03-17 23:43:01,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:43:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2022-03-17 23:43:01,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170200080] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 23:43:01,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 23:43:01,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-17 23:43:01,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036000590] [2022-03-17 23:43:01,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:01,687 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:43:01,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:01,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:43:01,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 23:43:01,688 INFO L87 Difference]: Start difference. First operand 10660 states and 15595 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:03,694 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 [] [2022-03-17 23:43:04,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:04,180 INFO L93 Difference]: Finished difference Result 22707 states and 33011 transitions. [2022-03-17 23:43:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:43:04,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-03-17 23:43:04,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:04,193 INFO L225 Difference]: With dead ends: 22707 [2022-03-17 23:43:04,194 INFO L226 Difference]: Without dead ends: 12075 [2022-03-17 23:43:04,199 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1092 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 23:43:04,199 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 120 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:04,200 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 511 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 23:43:04,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12075 states. [2022-03-17 23:43:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12075 to 10660. [2022-03-17 23:43:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4610980760206476) internal successors, (15568), 10655 states have internal predecessors, (15568), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15572 transitions. [2022-03-17 23:43:04,359 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15572 transitions. Word has length 546 [2022-03-17 23:43:04,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:04,359 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15572 transitions. [2022-03-17 23:43:04,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15572 transitions. [2022-03-17 23:43:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-03-17 23:43:04,371 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:04,371 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:04,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 23:43:04,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2022-03-17 23:43:04,595 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-03-17 23:43:04,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:04,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593074506] [2022-03-17 23:43:04,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:04,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-03-17 23:43:04,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:04,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593074506] [2022-03-17 23:43:04,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593074506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:04,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:04,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:04,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987591191] [2022-03-17 23:43:04,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:04,788 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:04,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:04,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:04,789 INFO L87 Difference]: Start difference. First operand 10660 states and 15572 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:06,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:08,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:10,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:12,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:12,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:12,983 INFO L93 Difference]: Finished difference Result 21468 states and 31318 transitions. [2022-03-17 23:43:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:12,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 547 [2022-03-17 23:43:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:12,994 INFO L225 Difference]: With dead ends: 21468 [2022-03-17 23:43:12,995 INFO L226 Difference]: Without dead ends: 10836 [2022-03-17 23:43:13,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:43:13,004 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 24 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:13,004 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 615 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 421 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-17 23:43:13,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-03-17 23:43:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10660. [2022-03-17 23:43:13,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10655 states have (on average 1.4590333176912247) internal successors, (15546), 10655 states have internal predecessors, (15546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15550 transitions. [2022-03-17 23:43:13,164 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15550 transitions. Word has length 547 [2022-03-17 23:43:13,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:13,165 INFO L478 AbstractCegarLoop]: Abstraction has 10660 states and 15550 transitions. [2022-03-17 23:43:13,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15550 transitions. [2022-03-17 23:43:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-03-17 23:43:13,176 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:13,176 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:13,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-17 23:43:13,176 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:13,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash -858071160, now seen corresponding path program 1 times [2022-03-17 23:43:13,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:13,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082151334] [2022-03-17 23:43:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:13,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2808 backedges. 1076 proven. 0 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2022-03-17 23:43:13,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:13,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082151334] [2022-03-17 23:43:13,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082151334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:13,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:13,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:43:13,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668432173] [2022-03-17 23:43:13,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:13,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:43:13,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:13,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:43:13,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:43:13,386 INFO L87 Difference]: Start difference. First operand 10660 states and 15550 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:15,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:15,895 INFO L93 Difference]: Finished difference Result 22292 states and 32478 transitions. [2022-03-17 23:43:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:43:15,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 547 [2022-03-17 23:43:15,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:15,909 INFO L225 Difference]: With dead ends: 22292 [2022-03-17 23:43:15,909 INFO L226 Difference]: Without dead ends: 11660 [2022-03-17 23:43:15,919 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:43:15,919 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 38 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:15,920 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 613 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:43:15,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11660 states. [2022-03-17 23:43:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11660 to 11232. [2022-03-17 23:43:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11232 states, 11227 states have (on average 1.4611205130489) internal successors, (16404), 11227 states have internal predecessors, (16404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11232 states to 11232 states and 16408 transitions. [2022-03-17 23:43:16,130 INFO L78 Accepts]: Start accepts. Automaton has 11232 states and 16408 transitions. Word has length 547 [2022-03-17 23:43:16,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:16,131 INFO L478 AbstractCegarLoop]: Abstraction has 11232 states and 16408 transitions. [2022-03-17 23:43:16,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:16,131 INFO L276 IsEmpty]: Start isEmpty. Operand 11232 states and 16408 transitions. [2022-03-17 23:43:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-03-17 23:43:16,143 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:16,143 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 13, 13, 11, 11, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:16,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 23:43:16,143 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:16,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1838622775, now seen corresponding path program 1 times [2022-03-17 23:43:16,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:16,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323065394] [2022-03-17 23:43:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:16,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:16,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1410 proven. 190 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2022-03-17 23:43:16,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:16,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323065394] [2022-03-17 23:43:16,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323065394] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:43:16,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775754325] [2022-03-17 23:43:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:16,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:43:16,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:43:16,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:43:16,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 23:43:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:17,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-17 23:43:17,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:43:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2984 backedges. 1327 proven. 0 refuted. 0 times theorem prover too weak. 1657 trivial. 0 not checked. [2022-03-17 23:43:18,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 23:43:18,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775754325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:18,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 23:43:18,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-17 23:43:18,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798010203] [2022-03-17 23:43:18,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:18,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-17 23:43:18,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-17 23:43:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:43:18,499 INFO L87 Difference]: Start difference. First operand 11232 states and 16408 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:18,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:18,710 INFO L93 Difference]: Finished difference Result 23470 states and 34323 transitions. [2022-03-17 23:43:18,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-17 23:43:18,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 548 [2022-03-17 23:43:18,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:18,724 INFO L225 Difference]: With dead ends: 23470 [2022-03-17 23:43:18,724 INFO L226 Difference]: Without dead ends: 12266 [2022-03-17 23:43:18,734 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-17 23:43:18,735 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 136 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:18,735 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 382 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-17 23:43:18,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2022-03-17 23:43:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 12266. [2022-03-17 23:43:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12266 states, 12261 states have (on average 1.4631759236603865) internal successors, (17940), 12261 states have internal predecessors, (17940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12266 states to 12266 states and 17944 transitions. [2022-03-17 23:43:18,960 INFO L78 Accepts]: Start accepts. Automaton has 12266 states and 17944 transitions. Word has length 548 [2022-03-17 23:43:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:18,961 INFO L478 AbstractCegarLoop]: Abstraction has 12266 states and 17944 transitions. [2022-03-17 23:43:18,961 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12266 states and 17944 transitions. [2022-03-17 23:43:18,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-03-17 23:43:18,973 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:18,973 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:19,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 23:43:19,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:43:19,187 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:19,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-03-17 23:43:19,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:19,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964102686] [2022-03-17 23:43:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:19,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-03-17 23:43:19,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:19,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964102686] [2022-03-17 23:43:19,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964102686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:43:19,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:43:19,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:43:19,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449358453] [2022-03-17 23:43:19,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:43:19,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:43:19,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:19,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:43:19,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:43:19,531 INFO L87 Difference]: Start difference. First operand 12266 states and 17944 transitions. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:21,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:23,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:25,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:27,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:28,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:43:28,802 INFO L93 Difference]: Finished difference Result 35184 states and 51344 transitions. [2022-03-17 23:43:28,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:43:28,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-03-17 23:43:28,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:43:28,827 INFO L225 Difference]: With dead ends: 35184 [2022-03-17 23:43:28,827 INFO L226 Difference]: Without dead ends: 22946 [2022-03-17 23:43:28,840 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-17 23:43:28,840 INFO L912 BasicCegarLoop]: 411 mSDtfsCounter, 260 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:43:28,840 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1176 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1249 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-03-17 23:43:28,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22946 states. [2022-03-17 23:43:29,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22946 to 12861. [2022-03-17 23:43:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12861 states, 12856 states have (on average 1.4639079029247044) internal successors, (18820), 12856 states have internal predecessors, (18820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12861 states to 12861 states and 18824 transitions. [2022-03-17 23:43:29,169 INFO L78 Accepts]: Start accepts. Automaton has 12861 states and 18824 transitions. Word has length 553 [2022-03-17 23:43:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:43:29,169 INFO L478 AbstractCegarLoop]: Abstraction has 12861 states and 18824 transitions. [2022-03-17 23:43:29,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 12861 states and 18824 transitions. [2022-03-17 23:43:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-03-17 23:43:29,185 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:43:29,185 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:43:29,185 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-17 23:43:29,185 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:43:29,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:43:29,186 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-03-17 23:43:29,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:43:29,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745173864] [2022-03-17 23:43:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:29,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:43:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:30,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:43:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1127 proven. 1526 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-03-17 23:43:30,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:43:30,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745173864] [2022-03-17 23:43:30,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745173864] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:43:30,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004759198] [2022-03-17 23:43:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:43:30,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:43:30,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:43:30,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:43:30,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 23:43:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:43:32,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-17 23:43:32,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:43:32,561 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:43:32,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:43:32,670 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:43:32,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 23:43:32,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:43:33,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:43:33,128 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:43:33,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:43:33,136 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:43:33,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-03-17 23:43:33,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:43:33,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:43:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,713 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:43:33,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:43:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,786 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:43:33,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:43:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:43:33,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:33,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:43:34,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:34,468 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:43:34,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:43:34,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:34,502 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:43:34,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 23:43:34,546 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 23:43:34,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-03-17 23:43:36,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 288 [2022-03-17 23:43:36,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:36,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 282 [2022-03-17 23:43:36,177 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-17 23:43:36,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 354 treesize of output 367 [2022-03-17 23:43:41,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 273 [2022-03-17 23:43:41,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 279 [2022-03-17 23:43:41,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,684 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-17 23:43:41,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 358 treesize of output 349 [2022-03-17 23:43:41,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 182 [2022-03-17 23:43:41,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:43:41,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 104 [2022-03-17 23:43:41,976 INFO L356 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-03-17 23:43:41,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 149 [2022-03-17 23:43:42,103 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:43:42,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 23:43:42,252 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:43:42,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:43:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1210 proven. 480 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-03-17 23:43:42,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:43:47,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:43:47,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:43:47,533 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 816 treesize of output 714 [2022-03-17 23:43:48,143 INFO L356 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-03-17 23:43:48,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 1 [2022-03-17 23:43:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-03-17 23:43:48,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004759198] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 23:43:48,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 23:43:48,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 13] total 50 [2022-03-17 23:43:48,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121736994] [2022-03-17 23:43:48,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 23:43:48,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-17 23:43:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:43:48,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-17 23:43:48,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=2176, Unknown=0, NotChecked=0, Total=2450 [2022-03-17 23:43:48,411 INFO L87 Difference]: Start difference. First operand 12861 states and 18824 transitions. Second operand has 50 states, 50 states have (on average 16.06) internal successors, (803), 49 states have internal predecessors, (803), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:43:49,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:51,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:53,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:55,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:57,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:43:59,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:01,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:03,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:06,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:07,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:08,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:44:10,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:46:20,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:46:20,542 INFO L93 Difference]: Finished difference Result 364028 states and 520472 transitions. [2022-03-17 23:46:20,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2022-03-17 23:46:20,543 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 16.06) internal successors, (803), 49 states have internal predecessors, (803), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-03-17 23:46:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:46:21,254 INFO L225 Difference]: With dead ends: 364028 [2022-03-17 23:46:21,254 INFO L226 Difference]: Without dead ends: 351117 [2022-03-17 23:46:21,365 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 2573 GetRequests, 1660 SyntacticMatches, 114 SemanticMatches, 799 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 323996 ImplicationChecksByTransitivity, 71.0s TimeCoverageRelationStatistics Valid=53546, Invalid=587254, Unknown=0, NotChecked=0, Total=640800 [2022-03-17 23:46:21,365 INFO L912 BasicCegarLoop]: 2076 mSDtfsCounter, 13018 mSDsluCounter, 43594 mSDsCounter, 0 mSdLazyCounter, 43981 mSolverCounterSat, 2816 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13018 SdHoareTripleChecker+Valid, 45670 SdHoareTripleChecker+Invalid, 73810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2816 IncrementalHoareTripleChecker+Valid, 43981 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 27006 IncrementalHoareTripleChecker+Unchecked, 67.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:46:21,365 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [13018 Valid, 45670 Invalid, 73810 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2816 Valid, 43981 Invalid, 7 Unknown, 27006 Unchecked, 67.0s Time] [2022-03-17 23:46:21,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351117 states. [2022-03-17 23:46:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351117 to 177172. [2022-03-17 23:46:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177172 states, 177167 states have (on average 1.4711430458268189) internal successors, (260638), 177167 states have internal predecessors, (260638), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:28,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177172 states to 177172 states and 260642 transitions. [2022-03-17 23:46:28,607 INFO L78 Accepts]: Start accepts. Automaton has 177172 states and 260642 transitions. Word has length 553 [2022-03-17 23:46:28,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:46:28,607 INFO L478 AbstractCegarLoop]: Abstraction has 177172 states and 260642 transitions. [2022-03-17 23:46:28,607 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 16.06) internal successors, (803), 49 states have internal predecessors, (803), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:46:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 177172 states and 260642 transitions. [2022-03-17 23:46:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-03-17 23:46:28,875 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:46:28,876 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:46:28,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 23:46:29,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:46:29,089 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:46:29,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:46:29,089 INFO L85 PathProgramCache]: Analyzing trace with hash -293158755, now seen corresponding path program 1 times [2022-03-17 23:46:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:46:29,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263283676] [2022-03-17 23:46:29,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:29,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:46:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:46:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1285 proven. 224 refuted. 0 times theorem prover too weak. 1380 trivial. 0 not checked. [2022-03-17 23:46:30,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:46:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263283676] [2022-03-17 23:46:30,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263283676] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:46:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624519844] [2022-03-17 23:46:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:46:30,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:46:30,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:46:30,134 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-17 23:46:30,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 23:46:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:46:31,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 94 conjunts are in the unsatisfiable core [2022-03-17 23:46:31,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:46:31,808 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:46:31,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-17 23:46:31,894 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 23:46:31,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-17 23:46:32,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 23:46:32,259 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:46:32,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:46:32,269 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:46:32,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-17 23:46:32,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-17 23:46:32,299 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 23:46:32,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-17 23:46:32,307 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 23:46:32,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-03-17 23:46:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-17 23:46:32,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,776 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 23:46:32,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-17 23:46:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-17 23:46:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,854 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 23:46:32,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-17 23:46:32,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:46:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:32,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-17 23:46:33,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:33,435 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 23:46:33,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-17 23:46:33,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:33,471 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 23:46:33,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-17 23:46:33,517 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-17 23:46:33,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-17 23:46:40,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-03-17 23:46:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-03-17 23:46:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:46:40,099 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-03-17 23:46:40,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 295 treesize of output 299 [2022-03-17 23:50:24,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-03-17 23:50:24,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-03-17 23:50:24,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:24,147 INFO L356 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-03-17 23:50:24,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 299 treesize of output 292 [2022-03-17 23:50:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:37,894 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 156 treesize of output 114 [2022-03-17 23:50:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:37,914 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 114 treesize of output 78 [2022-03-17 23:50:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:50:37,977 INFO L356 Elim1Store]: treesize reduction 169, result has 23.5 percent of original size [2022-03-17 23:50:37,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 129 [2022-03-17 23:50:38,448 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 23:50:38,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-17 23:50:38,946 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 23:50:38,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-17 23:50:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1210 proven. 480 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-03-17 23:50:38,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 23:50:44,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:50:44,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:50:44,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-17 23:50:44,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:50:44,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 23:50:44,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154