/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.06.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 13:50:00,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 13:50:00,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 13:50:01,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 13:50:01,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 13:50:01,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 13:50:01,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 13:50:01,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 13:50:01,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 13:50:01,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 13:50:01,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 13:50:01,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 13:50:01,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 13:50:01,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 13:50:01,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 13:50:01,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 13:50:01,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 13:50:01,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 13:50:01,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 13:50:01,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 13:50:01,029 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 13:50:01,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 13:50:01,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 13:50:01,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 13:50:01,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 13:50:01,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 13:50:01,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 13:50:01,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 13:50:01,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 13:50:01,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 13:50:01,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-06 13:50:01,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 13:50:01,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 13:50:01,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 13:50:01,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 13:50:01,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 13:50:01,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 13:50:01,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 13:50:01,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 13:50:01,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 13:50:01,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 13:50:01,066 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 13:50:01,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 13:50:01,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 13:50:01,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 13:50:01,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 13:50:01,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 13:50:01,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:50:01,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 13:50:01,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 13:50:01,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 13:50:01,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 13:50:01,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 13:50:01,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 13:50:01,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 13:50:01,069 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 13:50:01,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 13:50:01,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 13:50:01,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 13:50:01,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 13:50:01,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 13:50:01,274 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 13:50:01,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-04-06 13:50:01,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66da2a0c9/574a54f45e2842269ac6ef803a148b0e/FLAG0f97403ee [2022-04-06 13:50:01,780 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 13:50:01,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-04-06 13:50:01,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66da2a0c9/574a54f45e2842269ac6ef803a148b0e/FLAG0f97403ee [2022-04-06 13:50:02,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66da2a0c9/574a54f45e2842269ac6ef803a148b0e [2022-04-06 13:50:02,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 13:50:02,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 13:50:02,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 13:50:02,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 13:50:02,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 13:50:02,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c26f919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02, skipping insertion in model container [2022-04-06 13:50:02,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 13:50:02,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 13:50:02,679 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.06.i.cil-2.c[78808,78821] [2022-04-06 13:50:02,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:50:02,693 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 13:50:02,767 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.06.i.cil-2.c[78808,78821] [2022-04-06 13:50:02,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:50:02,784 INFO L208 MainTranslator]: Completed translation [2022-04-06 13:50:02,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02 WrapperNode [2022-04-06 13:50:02,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 13:50:02,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 13:50:02,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 13:50:02,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 13:50:02,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 13:50:02,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 13:50:02,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 13:50:02,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 13:50:02,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (1/1) ... [2022-04-06 13:50:02,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:50:02,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:50:02,924 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) [2022-04-06 13:50:02,965 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 [2022-04-06 13:50:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 13:50:02,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 13:50:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 13:50:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 13:50:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 13:50:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 13:50:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 13:50:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 13:50:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 13:50:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 13:50:02,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 13:50:02,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 13:50:02,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 13:50:03,143 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 13:50:03,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 13:50:04,154 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 13:50:04,546 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 13:50:04,546 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 13:50:04,554 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 13:50:04,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 13:50:04,562 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 13:50:04,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:50:04 BoogieIcfgContainer [2022-04-06 13:50:04,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 13:50:04,564 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 13:50:04,564 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 13:50:04,565 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 13:50:04,567 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:50:04" (1/1) ... [2022-04-06 13:50:04,568 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 13:50:04,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:50:04 BasicIcfg [2022-04-06 13:50:04,620 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 13:50:04,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 13:50:04,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 13:50:04,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 13:50:04,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 01:50:02" (1/4) ... [2022-04-06 13:50:04,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:50:04, skipping insertion in model container [2022-04-06 13:50:04,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:50:02" (2/4) ... [2022-04-06 13:50:04,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:50:04, skipping insertion in model container [2022-04-06 13:50:04,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:50:04" (3/4) ... [2022-04-06 13:50:04,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:50:04, skipping insertion in model container [2022-04-06 13:50:04,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:50:04" (4/4) ... [2022-04-06 13:50:04,625 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-2.cqvasr [2022-04-06 13:50:04,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 13:50:04,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 13:50:04,657 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 13:50:04,661 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 [2022-04-06 13:50:04,661 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 13:50:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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) [2022-04-06 13:50:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-06 13:50:04,680 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:04,680 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:04,681 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1910801152, now seen corresponding path program 1 times [2022-04-06 13:50:04,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:04,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669071458] [2022-04-06 13:50:04,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:04,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:05,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669071458] [2022-04-06 13:50:05,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669071458] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:05,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:05,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:05,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576707613] [2022-04-06 13:50:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:05,052 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:05,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:05,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:05,075 INFO L87 Difference]: Start difference. First operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:08,643 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 [] [2022-04-06 13:50:10,668 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 [] [2022-04-06 13:50:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:11,157 INFO L93 Difference]: Finished difference Result 358 states and 608 transitions. [2022-04-06 13:50:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-04-06 13:50:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:11,169 INFO L225 Difference]: With dead ends: 358 [2022-04-06 13:50:11,169 INFO L226 Difference]: Without dead ends: 182 [2022-04-06 13:50:11,171 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:11,173 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 34 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:11,174 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 679 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 437 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 13:50:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-06 13:50:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 165. [2022-04-06 13:50:11,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.5875) internal successors, (254), 160 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 258 transitions. [2022-04-06 13:50:11,214 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 258 transitions. Word has length 52 [2022-04-06 13:50:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:11,214 INFO L478 AbstractCegarLoop]: Abstraction has 165 states and 258 transitions. [2022-04-06 13:50:11,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 258 transitions. [2022-04-06 13:50:11,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 13:50:11,216 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:11,216 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:11,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 13:50:11,217 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1943252380, now seen corresponding path program 1 times [2022-04-06 13:50:11,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:11,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537111239] [2022-04-06 13:50:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:11,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:11,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:11,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537111239] [2022-04-06 13:50:11,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537111239] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:11,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:11,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:11,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685555742] [2022-04-06 13:50:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:11,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:11,379 INFO L87 Difference]: Start difference. First operand 165 states and 258 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) [2022-04-06 13:50:13,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:14,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:16,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:18,855 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 [] [2022-04-06 13:50:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:19,480 INFO L93 Difference]: Finished difference Result 432 states and 682 transitions. [2022-04-06 13:50:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:19,480 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 [2022-04-06 13:50:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:19,482 INFO L225 Difference]: With dead ends: 432 [2022-04-06 13:50:19,482 INFO L226 Difference]: Without dead ends: 293 [2022-04-06 13:50:19,483 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:19,484 INFO L913 BasicCegarLoop]: 305 mSDtfsCounter, 165 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:19,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 742 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 666 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-06 13:50:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-04-06 13:50:19,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 181. [2022-04-06 13:50:19,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5852272727272727) internal successors, (279), 176 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 283 transitions. [2022-04-06 13:50:19,502 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 283 transitions. Word has length 65 [2022-04-06 13:50:19,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:19,502 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 283 transitions. [2022-04-06 13:50:19,502 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) [2022-04-06 13:50:19,502 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2022-04-06 13:50:19,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:50:19,504 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:19,504 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:19,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 13:50:19,504 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:19,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:19,504 INFO L85 PathProgramCache]: Analyzing trace with hash -51353605, now seen corresponding path program 1 times [2022-04-06 13:50:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:19,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200810886] [2022-04-06 13:50:19,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:19,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:19,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:19,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200810886] [2022-04-06 13:50:19,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200810886] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:19,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:19,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:19,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920572540] [2022-04-06 13:50:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:19,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:19,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:19,695 INFO L87 Difference]: Start difference. First operand 181 states and 283 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) [2022-04-06 13:50:21,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:23,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:25,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:26,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:26,448 INFO L93 Difference]: Finished difference Result 352 states and 549 transitions. [2022-04-06 13:50:26,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:26,448 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 [2022-04-06 13:50:26,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:26,450 INFO L225 Difference]: With dead ends: 352 [2022-04-06 13:50:26,450 INFO L226 Difference]: Without dead ends: 197 [2022-04-06 13:50:26,450 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:26,451 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 28 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:26,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 557 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 13:50:26,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-04-06 13:50:26,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-04-06 13:50:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5795454545454546) internal successors, (278), 176 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 282 transitions. [2022-04-06 13:50:26,460 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 282 transitions. Word has length 66 [2022-04-06 13:50:26,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:26,460 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 282 transitions. [2022-04-06 13:50:26,460 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) [2022-04-06 13:50:26,460 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 282 transitions. [2022-04-06 13:50:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:50:26,464 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:26,465 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:26,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 13:50:26,465 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:26,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:26,465 INFO L85 PathProgramCache]: Analyzing trace with hash -299653093, now seen corresponding path program 1 times [2022-04-06 13:50:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:26,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463426183] [2022-04-06 13:50:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:26,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:26,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:26,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:26,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463426183] [2022-04-06 13:50:26,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463426183] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:26,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:26,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:26,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927210767] [2022-04-06 13:50:26,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:26,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:26,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:26,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:26,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:26,627 INFO L87 Difference]: Start difference. First operand 181 states and 282 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:28,644 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 [] [2022-04-06 13:50:28,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:28,997 INFO L93 Difference]: Finished difference Result 352 states and 548 transitions. [2022-04-06 13:50:28,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:28,998 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 [2022-04-06 13:50:28,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:28,999 INFO L225 Difference]: With dead ends: 352 [2022-04-06 13:50:28,999 INFO L226 Difference]: Without dead ends: 197 [2022-04-06 13:50:29,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:29,000 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 26 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:29,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 557 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:50:29,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-04-06 13:50:29,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 181. [2022-04-06 13:50:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5738636363636365) internal successors, (277), 176 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:29,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 281 transitions. [2022-04-06 13:50:29,014 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 281 transitions. Word has length 66 [2022-04-06 13:50:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:29,014 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 281 transitions. [2022-04-06 13:50:29,014 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) [2022-04-06 13:50:29,014 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 281 transitions. [2022-04-06 13:50:29,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:50:29,015 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:29,016 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:29,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 13:50:29,016 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:29,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash -296194534, now seen corresponding path program 1 times [2022-04-06 13:50:29,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:29,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976193958] [2022-04-06 13:50:29,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:29,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:29,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:29,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976193958] [2022-04-06 13:50:29,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976193958] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:29,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:29,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:29,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639182401] [2022-04-06 13:50:29,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:29,122 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:29,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:29,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:29,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:29,123 INFO L87 Difference]: Start difference. First operand 181 states and 281 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) [2022-04-06 13:50:31,567 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 [] [2022-04-06 13:50:34,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:34,502 INFO L93 Difference]: Finished difference Result 464 states and 731 transitions. [2022-04-06 13:50:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:34,502 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 [2022-04-06 13:50:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:34,504 INFO L225 Difference]: With dead ends: 464 [2022-04-06 13:50:34,504 INFO L226 Difference]: Without dead ends: 309 [2022-04-06 13:50:34,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:34,505 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 164 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:34,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 414 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 13:50:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-06 13:50:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 198. [2022-04-06 13:50:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.5751295336787565) internal successors, (304), 193 states have internal predecessors, (304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 308 transitions. [2022-04-06 13:50:34,540 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 308 transitions. Word has length 66 [2022-04-06 13:50:34,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:34,540 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 308 transitions. [2022-04-06 13:50:34,540 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) [2022-04-06 13:50:34,541 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 308 transitions. [2022-04-06 13:50:34,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 13:50:34,541 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:34,541 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:34,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 13:50:34,542 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:34,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:34,542 INFO L85 PathProgramCache]: Analyzing trace with hash -71604934, now seen corresponding path program 1 times [2022-04-06 13:50:34,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:34,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187620464] [2022-04-06 13:50:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:34,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:34,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:34,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187620464] [2022-04-06 13:50:34,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187620464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:34,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:34,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:34,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004010991] [2022-04-06 13:50:34,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:34,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:34,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:34,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:34,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:34,677 INFO L87 Difference]: Start difference. First operand 198 states and 308 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) [2022-04-06 13:50:36,688 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 [] [2022-04-06 13:50:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:37,021 INFO L93 Difference]: Finished difference Result 383 states and 599 transitions. [2022-04-06 13:50:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:37,023 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 [2022-04-06 13:50:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:37,024 INFO L225 Difference]: With dead ends: 383 [2022-04-06 13:50:37,024 INFO L226 Difference]: Without dead ends: 211 [2022-04-06 13:50:37,024 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:37,025 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 18 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:37,025 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 563 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:50:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-04-06 13:50:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2022-04-06 13:50:37,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.5699481865284974) internal successors, (303), 193 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 307 transitions. [2022-04-06 13:50:37,033 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 307 transitions. Word has length 66 [2022-04-06 13:50:37,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:37,034 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 307 transitions. [2022-04-06 13:50:37,034 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) [2022-04-06 13:50:37,034 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 307 transitions. [2022-04-06 13:50:37,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 13:50:37,034 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:37,034 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:37,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 13:50:37,035 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:37,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1629485595, now seen corresponding path program 1 times [2022-04-06 13:50:37,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:37,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082279020] [2022-04-06 13:50:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:37,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:37,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082279020] [2022-04-06 13:50:37,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082279020] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:37,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:37,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:37,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989656276] [2022-04-06 13:50:37,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:37,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:37,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:37,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:37,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:37,150 INFO L87 Difference]: Start difference. First operand 198 states and 307 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) [2022-04-06 13:50:39,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:42,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:42,381 INFO L93 Difference]: Finished difference Result 383 states and 598 transitions. [2022-04-06 13:50:42,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:42,381 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 [2022-04-06 13:50:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:42,382 INFO L225 Difference]: With dead ends: 383 [2022-04-06 13:50:42,382 INFO L226 Difference]: Without dead ends: 211 [2022-04-06 13:50:42,383 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:42,387 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 22 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:42,387 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 563 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-06 13:50:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-04-06 13:50:42,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2022-04-06 13:50:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.5647668393782384) internal successors, (302), 193 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 306 transitions. [2022-04-06 13:50:42,392 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 306 transitions. Word has length 67 [2022-04-06 13:50:42,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:42,392 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 306 transitions. [2022-04-06 13:50:42,392 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) [2022-04-06 13:50:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 306 transitions. [2022-04-06 13:50:42,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 13:50:42,393 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:42,393 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:42,393 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 13:50:42,393 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 64342367, now seen corresponding path program 1 times [2022-04-06 13:50:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:42,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704681200] [2022-04-06 13:50:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:42,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:42,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:42,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704681200] [2022-04-06 13:50:42,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704681200] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:42,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:42,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:42,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254775312] [2022-04-06 13:50:42,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:42,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:42,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:42,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:42,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:42,522 INFO L87 Difference]: Start difference. First operand 198 states and 306 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) [2022-04-06 13:50:44,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:47,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:47,610 INFO L93 Difference]: Finished difference Result 481 states and 755 transitions. [2022-04-06 13:50:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:47,610 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 [2022-04-06 13:50:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:47,611 INFO L225 Difference]: With dead ends: 481 [2022-04-06 13:50:47,611 INFO L226 Difference]: Without dead ends: 309 [2022-04-06 13:50:47,612 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:47,612 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 166 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:47,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 414 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:50:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-06 13:50:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 198. [2022-04-06 13:50:47,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.549222797927461) internal successors, (299), 193 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 303 transitions. [2022-04-06 13:50:47,617 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 303 transitions. Word has length 68 [2022-04-06 13:50:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:47,618 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 303 transitions. [2022-04-06 13:50:47,618 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) [2022-04-06 13:50:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 303 transitions. [2022-04-06 13:50:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-06 13:50:47,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:47,618 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:47,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 13:50:47,619 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:47,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1010123560, now seen corresponding path program 1 times [2022-04-06 13:50:47,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:47,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047469110] [2022-04-06 13:50:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:47,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:47,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:47,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:47,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047469110] [2022-04-06 13:50:47,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047469110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:47,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:47,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:47,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908691897] [2022-04-06 13:50:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:47,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:47,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:47,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:47,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:47,723 INFO L87 Difference]: Start difference. First operand 198 states and 303 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:49,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:51,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:53,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:50:53,981 INFO L93 Difference]: Finished difference Result 373 states and 579 transitions. [2022-04-06 13:50:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:50:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-06 13:50:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:50:53,983 INFO L225 Difference]: With dead ends: 373 [2022-04-06 13:50:53,983 INFO L226 Difference]: Without dead ends: 201 [2022-04-06 13:50:53,983 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:50:53,984 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 11 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:50:53,984 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 577 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:50:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-04-06 13:50:53,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2022-04-06 13:50:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.544041450777202) internal successors, (298), 193 states have internal predecessors, (298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 302 transitions. [2022-04-06 13:50:53,988 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 302 transitions. Word has length 69 [2022-04-06 13:50:53,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:50:53,988 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 302 transitions. [2022-04-06 13:50:53,989 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:53,989 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 302 transitions. [2022-04-06 13:50:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-06 13:50:53,989 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:50:53,989 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:50:53,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 13:50:53,989 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:50:53,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:50:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash 656722902, now seen corresponding path program 1 times [2022-04-06 13:50:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:50:53,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161233712] [2022-04-06 13:50:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:50:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:50:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:54,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:50:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:50:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:50:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:50:54,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161233712] [2022-04-06 13:50:54,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161233712] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:50:54,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:50:54,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:50:54,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485684217] [2022-04-06 13:50:54,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:50:54,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:50:54,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:50:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:50:54,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:50:54,101 INFO L87 Difference]: Start difference. First operand 198 states and 302 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:50:55,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:57,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:50:59,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:00,128 INFO L93 Difference]: Finished difference Result 499 states and 776 transitions. [2022-04-06 13:51:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-06 13:51:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:00,130 INFO L225 Difference]: With dead ends: 499 [2022-04-06 13:51:00,130 INFO L226 Difference]: Without dead ends: 327 [2022-04-06 13:51:00,130 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:00,131 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 141 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:00,131 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 416 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 13:51:00,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-04-06 13:51:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 238. [2022-04-06 13:51:00,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.5793991416309012) internal successors, (368), 233 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 372 transitions. [2022-04-06 13:51:00,136 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 372 transitions. Word has length 69 [2022-04-06 13:51:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:00,136 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 372 transitions. [2022-04-06 13:51:00,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:00,136 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 372 transitions. [2022-04-06 13:51:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-06 13:51:00,137 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:00,137 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:00,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 13:51:00,137 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:00,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:00,137 INFO L85 PathProgramCache]: Analyzing trace with hash -614571223, now seen corresponding path program 1 times [2022-04-06 13:51:00,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:00,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140518470] [2022-04-06 13:51:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:00,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:00,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:51:00,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:00,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140518470] [2022-04-06 13:51:00,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140518470] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:00,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:00,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144384885] [2022-04-06 13:51:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:00,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:00,247 INFO L87 Difference]: Start difference. First operand 238 states and 372 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:01,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:03,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:05,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:07,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:08,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:08,274 INFO L93 Difference]: Finished difference Result 561 states and 889 transitions. [2022-04-06 13:51:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:08,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-04-06 13:51:08,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:08,276 INFO L225 Difference]: With dead ends: 561 [2022-04-06 13:51:08,276 INFO L226 Difference]: Without dead ends: 349 [2022-04-06 13:51:08,276 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:08,276 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 140 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:08,277 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 446 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 514 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-04-06 13:51:08,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-04-06 13:51:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 261. [2022-04-06 13:51:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.61328125) internal successors, (413), 256 states have internal predecessors, (413), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:08,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 417 transitions. [2022-04-06 13:51:08,282 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 417 transitions. Word has length 70 [2022-04-06 13:51:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:08,282 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 417 transitions. [2022-04-06 13:51:08,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:08,282 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 417 transitions. [2022-04-06 13:51:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-04-06 13:51:08,283 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:08,283 INFO L499 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, 1, 1] [2022-04-06 13:51:08,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 13:51:08,283 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:08,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:08,283 INFO L85 PathProgramCache]: Analyzing trace with hash 481022964, now seen corresponding path program 1 times [2022-04-06 13:51:08,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:08,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211967511] [2022-04-06 13:51:08,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:08,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-06 13:51:08,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:08,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211967511] [2022-04-06 13:51:08,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211967511] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:08,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:08,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:08,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513925195] [2022-04-06 13:51:08,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:08,362 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:08,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:08,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:08,363 INFO L87 Difference]: Start difference. First operand 261 states and 417 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:10,374 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 [] [2022-04-06 13:51:10,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:10,719 INFO L93 Difference]: Finished difference Result 537 states and 865 transitions. [2022-04-06 13:51:10,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:10,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-04-06 13:51:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:10,720 INFO L225 Difference]: With dead ends: 537 [2022-04-06 13:51:10,720 INFO L226 Difference]: Without dead ends: 302 [2022-04-06 13:51:10,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:10,721 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 31 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:10,721 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 579 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:51:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-04-06 13:51:10,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-04-06 13:51:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.6115107913669064) internal successors, (448), 278 states have internal predecessors, (448), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 452 transitions. [2022-04-06 13:51:10,726 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 452 transitions. Word has length 98 [2022-04-06 13:51:10,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:10,727 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 452 transitions. [2022-04-06 13:51:10,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:10,727 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 452 transitions. [2022-04-06 13:51:10,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-04-06 13:51:10,727 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:10,727 INFO L499 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, 1] [2022-04-06 13:51:10,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 13:51:10,728 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:10,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:10,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1035119783, now seen corresponding path program 1 times [2022-04-06 13:51:10,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:10,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391347260] [2022-04-06 13:51:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:10,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 13:51:10,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:10,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391347260] [2022-04-06 13:51:10,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391347260] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:10,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:10,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:10,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554349036] [2022-04-06 13:51:10,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:10,815 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:10,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:10,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:10,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:10,815 INFO L87 Difference]: Start difference. First operand 283 states and 452 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:13,379 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 [] [2022-04-06 13:51:15,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:17,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:17,645 INFO L93 Difference]: Finished difference Result 553 states and 890 transitions. [2022-04-06 13:51:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have 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 [2022-04-06 13:51:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:17,647 INFO L225 Difference]: With dead ends: 553 [2022-04-06 13:51:17,647 INFO L226 Difference]: Without dead ends: 296 [2022-04-06 13:51:17,648 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:17,648 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 21 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:17,648 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 644 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-04-06 13:51:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-04-06 13:51:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 283. [2022-04-06 13:51:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.6079136690647482) internal successors, (447), 278 states have internal predecessors, (447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 451 transitions. [2022-04-06 13:51:17,653 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 451 transitions. Word has length 112 [2022-04-06 13:51:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:17,653 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 451 transitions. [2022-04-06 13:51:17,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 451 transitions. [2022-04-06 13:51:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-04-06 13:51:17,654 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:17,654 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-04-06 13:51:17,655 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 13:51:17,655 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:17,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1075989894, now seen corresponding path program 1 times [2022-04-06 13:51:17,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:17,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592470865] [2022-04-06 13:51:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 13:51:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592470865] [2022-04-06 13:51:17,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592470865] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:17,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:17,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420962457] [2022-04-06 13:51:17,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:17,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:17,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:17,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:17,760 INFO L87 Difference]: Start difference. First operand 283 states and 451 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) [2022-04-06 13:51:19,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:21,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:23,192 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 [] [2022-04-06 13:51:24,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:24,064 INFO L93 Difference]: Finished difference Result 558 states and 896 transitions. [2022-04-06 13:51:24,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:24,065 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 [2022-04-06 13:51:24,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:24,066 INFO L225 Difference]: With dead ends: 558 [2022-04-06 13:51:24,066 INFO L226 Difference]: Without dead ends: 301 [2022-04-06 13:51:24,066 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:24,067 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 34 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:24,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 581 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:51:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-04-06 13:51:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 283. [2022-04-06 13:51:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.60431654676259) internal successors, (446), 278 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 450 transitions. [2022-04-06 13:51:24,072 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 450 transitions. Word has length 112 [2022-04-06 13:51:24,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:24,072 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 450 transitions. [2022-04-06 13:51:24,072 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) [2022-04-06 13:51:24,072 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 450 transitions. [2022-04-06 13:51:24,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-06 13:51:24,073 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:24,073 INFO L499 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, 1, 1] [2022-04-06 13:51:24,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 13:51:24,073 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:24,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:24,073 INFO L85 PathProgramCache]: Analyzing trace with hash 725734498, now seen corresponding path program 1 times [2022-04-06 13:51:24,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:24,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855962117] [2022-04-06 13:51:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-06 13:51:24,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:24,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855962117] [2022-04-06 13:51:24,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855962117] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:24,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:24,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 13:51:24,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733099311] [2022-04-06 13:51:24,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:24,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 13:51:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:24,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 13:51:24,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:24,177 INFO L87 Difference]: Start difference. First operand 283 states and 450 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-04-06 13:51:25,335 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 [] [2022-04-06 13:51:27,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:29,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:30,225 INFO L93 Difference]: Finished difference Result 549 states and 882 transitions. [2022-04-06 13:51:30,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 13:51:30,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 113 [2022-04-06 13:51:30,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:30,227 INFO L225 Difference]: With dead ends: 549 [2022-04-06 13:51:30,227 INFO L226 Difference]: Without dead ends: 292 [2022-04-06 13:51:30,227 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 13:51:30,227 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 3 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:30,228 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 729 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-06 13:51:30,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-04-06 13:51:30,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-04-06 13:51:30,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5923344947735192) internal successors, (457), 287 states have internal predecessors, (457), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 461 transitions. [2022-04-06 13:51:30,236 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 461 transitions. Word has length 113 [2022-04-06 13:51:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:30,236 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 461 transitions. [2022-04-06 13:51:30,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-04-06 13:51:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 461 transitions. [2022-04-06 13:51:30,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-06 13:51:30,237 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:30,237 INFO L499 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, 1, 1] [2022-04-06 13:51:30,237 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 13:51:30,237 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:30,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:30,237 INFO L85 PathProgramCache]: Analyzing trace with hash 274603138, now seen corresponding path program 1 times [2022-04-06 13:51:30,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:30,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136729800] [2022-04-06 13:51:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:30,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:30,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 13:51:30,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:30,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136729800] [2022-04-06 13:51:30,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136729800] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:30,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:30,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:30,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990596841] [2022-04-06 13:51:30,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:30,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:30,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:30,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:30,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:30,326 INFO L87 Difference]: Start difference. First operand 292 states and 461 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) [2022-04-06 13:51:31,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:33,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:35,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:37,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:38,347 INFO L93 Difference]: Finished difference Result 585 states and 927 transitions. [2022-04-06 13:51:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:38,348 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 113 [2022-04-06 13:51:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:38,349 INFO L225 Difference]: With dead ends: 585 [2022-04-06 13:51:38,349 INFO L226 Difference]: Without dead ends: 319 [2022-04-06 13:51:38,349 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:38,350 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 39 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:38,350 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 581 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-04-06 13:51:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-04-06 13:51:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 292. [2022-04-06 13:51:38,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.588850174216028) internal successors, (456), 287 states have internal predecessors, (456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:38,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 460 transitions. [2022-04-06 13:51:38,355 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 460 transitions. Word has length 113 [2022-04-06 13:51:38,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:38,355 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 460 transitions. [2022-04-06 13:51:38,355 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) [2022-04-06 13:51:38,355 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 460 transitions. [2022-04-06 13:51:38,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-06 13:51:38,356 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:38,356 INFO L499 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, 1, 1] [2022-04-06 13:51:38,356 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 13:51:38,356 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:38,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:38,357 INFO L85 PathProgramCache]: Analyzing trace with hash 246806496, now seen corresponding path program 1 times [2022-04-06 13:51:38,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:38,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022705511] [2022-04-06 13:51:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:38,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 13:51:38,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:38,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022705511] [2022-04-06 13:51:38,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022705511] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:38,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:38,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:38,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28869821] [2022-04-06 13:51:38,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:38,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:38,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:38,479 INFO L87 Difference]: Start difference. First operand 292 states and 460 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) [2022-04-06 13:51:40,554 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 [] [2022-04-06 13:51:42,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:42,223 INFO L93 Difference]: Finished difference Result 655 states and 1030 transitions. [2022-04-06 13:51:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:42,223 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 [2022-04-06 13:51:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:42,225 INFO L225 Difference]: With dead ends: 655 [2022-04-06 13:51:42,225 INFO L226 Difference]: Without dead ends: 389 [2022-04-06 13:51:42,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:42,226 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 166 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:42,226 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 446 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 13:51:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-04-06 13:51:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 292. [2022-04-06 13:51:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5749128919860627) internal successors, (452), 287 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 456 transitions. [2022-04-06 13:51:42,232 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 456 transitions. Word has length 114 [2022-04-06 13:51:42,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:42,232 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 456 transitions. [2022-04-06 13:51:42,232 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) [2022-04-06 13:51:42,232 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 456 transitions. [2022-04-06 13:51:42,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-04-06 13:51:42,233 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:42,233 INFO L499 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, 1, 1] [2022-04-06 13:51:42,233 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 13:51:42,233 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1293142883, now seen corresponding path program 1 times [2022-04-06 13:51:42,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:42,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725566231] [2022-04-06 13:51:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:42,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:42,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:42,327 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-06 13:51:42,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:42,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725566231] [2022-04-06 13:51:42,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725566231] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:42,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:42,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:42,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538412729] [2022-04-06 13:51:42,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:42,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:42,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:42,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:42,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:42,328 INFO L87 Difference]: Start difference. First operand 292 states and 456 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:44,664 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 [] [2022-04-06 13:51:46,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:48,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:49,102 INFO L93 Difference]: Finished difference Result 575 states and 904 transitions. [2022-04-06 13:51:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:49,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-04-06 13:51:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:49,104 INFO L225 Difference]: With dead ends: 575 [2022-04-06 13:51:49,104 INFO L226 Difference]: Without dead ends: 309 [2022-04-06 13:51:49,104 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:49,105 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:49,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-04-06 13:51:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-04-06 13:51:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 292. [2022-04-06 13:51:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5714285714285714) internal successors, (451), 287 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 455 transitions. [2022-04-06 13:51:49,110 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 455 transitions. Word has length 116 [2022-04-06 13:51:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:49,110 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 455 transitions. [2022-04-06 13:51:49,111 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 455 transitions. [2022-04-06 13:51:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-04-06 13:51:49,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:49,112 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:49,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 13:51:49,112 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash -242661549, now seen corresponding path program 1 times [2022-04-06 13:51:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:49,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379797184] [2022-04-06 13:51:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:49,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:51:49,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:49,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379797184] [2022-04-06 13:51:49,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379797184] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:49,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:49,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:49,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785410274] [2022-04-06 13:51:49,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:49,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:49,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:49,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:49,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:49,274 INFO L87 Difference]: Start difference. First operand 292 states and 455 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) [2022-04-06 13:51:51,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:53,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:51:55,927 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 [] [2022-04-06 13:51:56,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:51:56,389 INFO L93 Difference]: Finished difference Result 668 states and 1047 transitions. [2022-04-06 13:51:56,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:51:56,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-04-06 13:51:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:51:56,394 INFO L225 Difference]: With dead ends: 668 [2022-04-06 13:51:56,394 INFO L226 Difference]: Without dead ends: 402 [2022-04-06 13:51:56,395 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:51:56,395 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 100 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:51:56,395 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 575 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 549 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 13:51:56,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-04-06 13:51:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 326. [2022-04-06 13:51:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.5794392523364487) internal successors, (507), 321 states have internal predecessors, (507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 511 transitions. [2022-04-06 13:51:56,402 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 511 transitions. Word has length 120 [2022-04-06 13:51:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:51:56,402 INFO L478 AbstractCegarLoop]: Abstraction has 326 states and 511 transitions. [2022-04-06 13:51:56,402 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) [2022-04-06 13:51:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 511 transitions. [2022-04-06 13:51:56,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-04-06 13:51:56,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:51:56,403 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:51:56,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 13:51:56,404 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:51:56,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:51:56,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1943272498, now seen corresponding path program 1 times [2022-04-06 13:51:56,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:51:56,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938475287] [2022-04-06 13:51:56,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:51:56,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:51:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:51:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:51:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 13:51:56,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:51:56,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938475287] [2022-04-06 13:51:56,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938475287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:51:56,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:51:56,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:51:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278918805] [2022-04-06 13:51:56,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:51:56,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:51:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:51:56,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:51:56,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:51:56,506 INFO L87 Difference]: Start difference. First operand 326 states and 511 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:51:57,794 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 [] [2022-04-06 13:51:59,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:01,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:02,808 INFO L93 Difference]: Finished difference Result 683 states and 1074 transitions. [2022-04-06 13:52:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-04-06 13:52:02,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:02,809 INFO L225 Difference]: With dead ends: 683 [2022-04-06 13:52:02,809 INFO L226 Difference]: Without dead ends: 383 [2022-04-06 13:52:02,810 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:02,810 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 38 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:02,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 679 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-06 13:52:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-04-06 13:52:02,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 350. [2022-04-06 13:52:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5797101449275361) internal successors, (545), 345 states have internal predecessors, (545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 549 transitions. [2022-04-06 13:52:02,816 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 549 transitions. Word has length 120 [2022-04-06 13:52:02,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:02,816 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 549 transitions. [2022-04-06 13:52:02,816 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:02,816 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 549 transitions. [2022-04-06 13:52:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-06 13:52:02,817 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:02,817 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:02,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 13:52:02,817 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash -415266249, now seen corresponding path program 1 times [2022-04-06 13:52:02,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:02,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053958934] [2022-04-06 13:52:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:02,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-06 13:52:02,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:02,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053958934] [2022-04-06 13:52:02,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053958934] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:02,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:02,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244183762] [2022-04-06 13:52:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:02,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:02,908 INFO L87 Difference]: Start difference. First operand 350 states and 549 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:05,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:07,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:09,772 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 [] [2022-04-06 13:52:10,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:10,209 INFO L93 Difference]: Finished difference Result 761 states and 1196 transitions. [2022-04-06 13:52:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:10,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-06 13:52:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:10,210 INFO L225 Difference]: With dead ends: 761 [2022-04-06 13:52:10,211 INFO L226 Difference]: Without dead ends: 437 [2022-04-06 13:52:10,211 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:10,212 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 167 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:10,212 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 416 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 496 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-04-06 13:52:10,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-04-06 13:52:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 350. [2022-04-06 13:52:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5623188405797102) internal successors, (539), 345 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 543 transitions. [2022-04-06 13:52:10,217 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 543 transitions. Word has length 125 [2022-04-06 13:52:10,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:10,217 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 543 transitions. [2022-04-06 13:52:10,217 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 543 transitions. [2022-04-06 13:52:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-04-06 13:52:10,218 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:10,218 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:10,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 13:52:10,218 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:10,219 INFO L85 PathProgramCache]: Analyzing trace with hash 866150237, now seen corresponding path program 1 times [2022-04-06 13:52:10,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:10,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518273939] [2022-04-06 13:52:10,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:10,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:10,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:10,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518273939] [2022-04-06 13:52:10,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518273939] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:10,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:10,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:10,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381483361] [2022-04-06 13:52:10,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:10,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:10,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:10,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:10,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:10,349 INFO L87 Difference]: Start difference. First operand 350 states and 543 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) [2022-04-06 13:52:12,356 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 [] [2022-04-06 13:52:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:12,720 INFO L93 Difference]: Finished difference Result 801 states and 1252 transitions. [2022-04-06 13:52:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:12,722 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 126 [2022-04-06 13:52:12,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:12,724 INFO L225 Difference]: With dead ends: 801 [2022-04-06 13:52:12,724 INFO L226 Difference]: Without dead ends: 477 [2022-04-06 13:52:12,724 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:12,725 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 140 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:12,725 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 416 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:52:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-04-06 13:52:12,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 387. [2022-04-06 13:52:12,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5732984293193717) internal successors, (601), 382 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 605 transitions. [2022-04-06 13:52:12,730 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 605 transitions. Word has length 126 [2022-04-06 13:52:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:12,731 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 605 transitions. [2022-04-06 13:52:12,731 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) [2022-04-06 13:52:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 605 transitions. [2022-04-06 13:52:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-04-06 13:52:12,731 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:12,732 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:12,732 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 13:52:12,732 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1899710259, now seen corresponding path program 1 times [2022-04-06 13:52:12,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:12,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801364479] [2022-04-06 13:52:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:12,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:12,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:12,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:12,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801364479] [2022-04-06 13:52:12,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801364479] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:12,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:12,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:12,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950745705] [2022-04-06 13:52:12,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:12,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:12,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:12,855 INFO L87 Difference]: Start difference. First operand 387 states and 605 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) [2022-04-06 13:52:15,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:17,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:18,959 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 [] [2022-04-06 13:52:19,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:19,391 INFO L93 Difference]: Finished difference Result 811 states and 1273 transitions. [2022-04-06 13:52:19,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:19,391 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 127 [2022-04-06 13:52:19,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:19,393 INFO L225 Difference]: With dead ends: 811 [2022-04-06 13:52:19,393 INFO L226 Difference]: Without dead ends: 450 [2022-04-06 13:52:19,393 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:19,394 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 88 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:19,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 545 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 526 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 13:52:19,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-04-06 13:52:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 393. [2022-04-06 13:52:19,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.574742268041237) internal successors, (611), 388 states have internal predecessors, (611), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 615 transitions. [2022-04-06 13:52:19,399 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 615 transitions. Word has length 127 [2022-04-06 13:52:19,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:19,400 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 615 transitions. [2022-04-06 13:52:19,400 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) [2022-04-06 13:52:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 615 transitions. [2022-04-06 13:52:19,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-06 13:52:19,400 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:19,401 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:19,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 13:52:19,401 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash 924996505, now seen corresponding path program 1 times [2022-04-06 13:52:19,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:19,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992398699] [2022-04-06 13:52:19,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:19,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:52:19,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:19,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992398699] [2022-04-06 13:52:19,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992398699] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:19,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:19,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:19,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701576746] [2022-04-06 13:52:19,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:19,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:19,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:19,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:19,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:19,487 INFO L87 Difference]: Start difference. First operand 393 states and 615 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:20,887 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 [] [2022-04-06 13:52:23,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:25,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:25,674 INFO L93 Difference]: Finished difference Result 846 states and 1327 transitions. [2022-04-06 13:52:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:25,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-04-06 13:52:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:25,675 INFO L225 Difference]: With dead ends: 846 [2022-04-06 13:52:25,675 INFO L226 Difference]: Without dead ends: 479 [2022-04-06 13:52:25,676 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:25,676 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 159 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:25,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 418 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 13:52:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-04-06 13:52:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 393. [2022-04-06 13:52:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5618556701030928) internal successors, (606), 388 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) [2022-04-06 13:52:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 610 transitions. [2022-04-06 13:52:25,683 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 610 transitions. Word has length 134 [2022-04-06 13:52:25,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:25,683 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 610 transitions. [2022-04-06 13:52:25,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 610 transitions. [2022-04-06 13:52:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-04-06 13:52:25,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:25,684 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:25,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 13:52:25,684 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:25,685 INFO L85 PathProgramCache]: Analyzing trace with hash 182948989, now seen corresponding path program 1 times [2022-04-06 13:52:25,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:25,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065473772] [2022-04-06 13:52:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:25,829 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:25,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065473772] [2022-04-06 13:52:25,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065473772] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:25,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:25,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993026610] [2022-04-06 13:52:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:25,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:25,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:25,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:25,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:25,830 INFO L87 Difference]: Start difference. First operand 393 states and 610 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:26,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:28,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:30,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:31,422 INFO L93 Difference]: Finished difference Result 886 states and 1383 transitions. [2022-04-06 13:52:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:31,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-04-06 13:52:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:31,424 INFO L225 Difference]: With dead ends: 886 [2022-04-06 13:52:31,424 INFO L226 Difference]: Without dead ends: 519 [2022-04-06 13:52:31,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:31,425 INFO L913 BasicCegarLoop]: 159 mSDtfsCounter, 132 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:31,425 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 451 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:52:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-04-06 13:52:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 436. [2022-04-06 13:52:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.5707656612529002) internal successors, (677), 431 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:31,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 681 transitions. [2022-04-06 13:52:31,431 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 681 transitions. Word has length 134 [2022-04-06 13:52:31,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:31,432 INFO L478 AbstractCegarLoop]: Abstraction has 436 states and 681 transitions. [2022-04-06 13:52:31,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:31,432 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 681 transitions. [2022-04-06 13:52:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-06 13:52:31,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:31,433 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:31,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 13:52:31,433 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:31,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash -2119327933, now seen corresponding path program 1 times [2022-04-06 13:52:31,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:31,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6106788] [2022-04-06 13:52:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:31,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:52:31,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:31,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6106788] [2022-04-06 13:52:31,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6106788] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:31,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:31,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:31,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248639929] [2022-04-06 13:52:31,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:31,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:31,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:31,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:31,524 INFO L87 Difference]: Start difference. First operand 436 states and 681 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) [2022-04-06 13:52:32,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:34,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:36,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:37,294 INFO L93 Difference]: Finished difference Result 932 states and 1459 transitions. [2022-04-06 13:52:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:37,295 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 135 [2022-04-06 13:52:37,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:37,296 INFO L225 Difference]: With dead ends: 932 [2022-04-06 13:52:37,296 INFO L226 Difference]: Without dead ends: 522 [2022-04-06 13:52:37,297 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:37,300 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 164 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:37,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 418 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 13:52:37,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-04-06 13:52:37,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 436. [2022-04-06 13:52:37,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.554524361948956) internal successors, (670), 431 states have internal predecessors, (670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 674 transitions. [2022-04-06 13:52:37,313 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 674 transitions. Word has length 135 [2022-04-06 13:52:37,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:37,313 INFO L478 AbstractCegarLoop]: Abstraction has 436 states and 674 transitions. [2022-04-06 13:52:37,313 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) [2022-04-06 13:52:37,313 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 674 transitions. [2022-04-06 13:52:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-06 13:52:37,314 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:37,314 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:37,314 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 13:52:37,314 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 695646319, now seen corresponding path program 1 times [2022-04-06 13:52:37,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:37,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268850888] [2022-04-06 13:52:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:37,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:37,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 13:52:37,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:37,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268850888] [2022-04-06 13:52:37,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268850888] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:37,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:37,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:37,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187583972] [2022-04-06 13:52:37,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:37,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:37,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:37,405 INFO L87 Difference]: Start difference. First operand 436 states and 674 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:38,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:40,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:42,775 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 [] [2022-04-06 13:52:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:43,836 INFO L93 Difference]: Finished difference Result 932 states and 1445 transitions. [2022-04-06 13:52:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:43,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-06 13:52:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:43,838 INFO L225 Difference]: With dead ends: 932 [2022-04-06 13:52:43,838 INFO L226 Difference]: Without dead ends: 520 [2022-04-06 13:52:43,838 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:43,838 INFO L913 BasicCegarLoop]: 159 mSDtfsCounter, 132 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:43,839 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 450 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 13:52:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-04-06 13:52:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 438. [2022-04-06 13:52:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5542725173210161) internal successors, (673), 433 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 677 transitions. [2022-04-06 13:52:43,845 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 677 transitions. Word has length 135 [2022-04-06 13:52:43,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:43,845 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 677 transitions. [2022-04-06 13:52:43,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:43,845 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 677 transitions. [2022-04-06 13:52:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-04-06 13:52:43,846 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:43,846 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:43,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 13:52:43,846 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:43,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1624556802, now seen corresponding path program 1 times [2022-04-06 13:52:43,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:43,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592871019] [2022-04-06 13:52:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:43,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:52:43,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:43,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592871019] [2022-04-06 13:52:43,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592871019] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:43,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:43,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:43,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123671707] [2022-04-06 13:52:43,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:43,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:43,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:43,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:43,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:43,964 INFO L87 Difference]: Start difference. First operand 438 states and 677 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) [2022-04-06 13:52:46,243 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 [] [2022-04-06 13:52:47,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:52:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:48,844 INFO L93 Difference]: Finished difference Result 888 states and 1378 transitions. [2022-04-06 13:52:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:48,845 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 138 [2022-04-06 13:52:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:48,846 INFO L225 Difference]: With dead ends: 888 [2022-04-06 13:52:48,846 INFO L226 Difference]: Without dead ends: 476 [2022-04-06 13:52:48,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:48,847 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 88 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:48,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 565 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 13:52:48,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-04-06 13:52:48,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 438. [2022-04-06 13:52:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5519630484988454) internal successors, (672), 433 states have internal predecessors, (672), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 676 transitions. [2022-04-06 13:52:48,854 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 676 transitions. Word has length 138 [2022-04-06 13:52:48,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:48,854 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 676 transitions. [2022-04-06 13:52:48,855 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) [2022-04-06 13:52:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 676 transitions. [2022-04-06 13:52:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-04-06 13:52:48,856 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:48,856 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:48,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 13:52:48,856 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:48,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:48,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1731878879, now seen corresponding path program 1 times [2022-04-06 13:52:48,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290934680] [2022-04-06 13:52:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:48,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:48,947 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:52:48,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:48,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290934680] [2022-04-06 13:52:48,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290934680] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:48,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:48,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:48,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624578968] [2022-04-06 13:52:48,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:48,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:48,948 INFO L87 Difference]: Start difference. First operand 438 states and 676 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) [2022-04-06 13:52:52,428 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 [] [2022-04-06 13:52:54,454 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 [] [2022-04-06 13:52:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:54,811 INFO L93 Difference]: Finished difference Result 862 states and 1339 transitions. [2022-04-06 13:52:54,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:54,811 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 138 [2022-04-06 13:52:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:54,812 INFO L225 Difference]: With dead ends: 862 [2022-04-06 13:52:54,812 INFO L226 Difference]: Without dead ends: 450 [2022-04-06 13:52:54,813 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:54,813 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 36 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:54,813 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 661 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 13:52:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-04-06 13:52:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 438. [2022-04-06 13:52:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5496535796766744) internal successors, (671), 433 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:54,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 675 transitions. [2022-04-06 13:52:54,830 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 675 transitions. Word has length 138 [2022-04-06 13:52:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:54,830 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 675 transitions. [2022-04-06 13:52:54,830 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) [2022-04-06 13:52:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 675 transitions. [2022-04-06 13:52:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-06 13:52:54,831 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:54,831 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:54,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 13:52:54,831 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:54,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:54,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1879626385, now seen corresponding path program 1 times [2022-04-06 13:52:54,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:54,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356610794] [2022-04-06 13:52:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:54,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:54,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:52:54,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:54,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356610794] [2022-04-06 13:52:54,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356610794] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:54,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:54,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:54,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112351941] [2022-04-06 13:52:54,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:54,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:54,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:54,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:54,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:54,919 INFO L87 Difference]: Start difference. First operand 438 states and 675 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:55,955 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 [] [2022-04-06 13:52:59,022 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 [] [2022-04-06 13:52:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:52:59,435 INFO L93 Difference]: Finished difference Result 888 states and 1374 transitions. [2022-04-06 13:52:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:52:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-04-06 13:52:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:52:59,437 INFO L225 Difference]: With dead ends: 888 [2022-04-06 13:52:59,437 INFO L226 Difference]: Without dead ends: 476 [2022-04-06 13:52:59,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:52:59,438 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 78 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:52:59,439 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 581 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-06 13:52:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-04-06 13:52:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 438. [2022-04-06 13:52:59,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5473441108545034) internal successors, (670), 433 states have internal predecessors, (670), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:59,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 674 transitions. [2022-04-06 13:52:59,444 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 674 transitions. Word has length 142 [2022-04-06 13:52:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:52:59,445 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 674 transitions. [2022-04-06 13:52:59,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:52:59,445 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 674 transitions. [2022-04-06 13:52:59,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-06 13:52:59,446 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:52:59,446 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:52:59,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 13:52:59,446 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:52:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:52:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1070138928, now seen corresponding path program 1 times [2022-04-06 13:52:59,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:52:59,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290593300] [2022-04-06 13:52:59,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:52:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:52:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:59,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:52:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:52:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:52:59,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:52:59,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290593300] [2022-04-06 13:52:59,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290593300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:52:59,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:52:59,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:52:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935352637] [2022-04-06 13:52:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:52:59,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:52:59,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:52:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:52:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:52:59,595 INFO L87 Difference]: Start difference. First operand 438 states and 674 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) [2022-04-06 13:53:00,876 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 [] [2022-04-06 13:53:02,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:04,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:06,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:06,767 INFO L93 Difference]: Finished difference Result 1010 states and 1567 transitions. [2022-04-06 13:53:06,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:06,767 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 142 [2022-04-06 13:53:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:06,769 INFO L225 Difference]: With dead ends: 1010 [2022-04-06 13:53:06,769 INFO L226 Difference]: Without dead ends: 598 [2022-04-06 13:53:06,770 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:06,770 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 140 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:06,770 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 464 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 13:53:06,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-06 13:53:06,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 502. [2022-04-06 13:53:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5492957746478873) internal successors, (770), 497 states have internal predecessors, (770), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 774 transitions. [2022-04-06 13:53:06,777 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 774 transitions. Word has length 142 [2022-04-06 13:53:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:06,777 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 774 transitions. [2022-04-06 13:53:06,777 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) [2022-04-06 13:53:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 774 transitions. [2022-04-06 13:53:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-06 13:53:06,778 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:06,778 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:06,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 13:53:06,778 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:06,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:06,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2028100243, now seen corresponding path program 1 times [2022-04-06 13:53:06,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:06,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473242740] [2022-04-06 13:53:06,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:06,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:06,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:53:06,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:06,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473242740] [2022-04-06 13:53:06,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473242740] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:06,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:06,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:06,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435039618] [2022-04-06 13:53:06,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:06,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:06,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:06,868 INFO L87 Difference]: Start difference. First operand 502 states and 774 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:07,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:09,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:10,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:12,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:13,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:13,247 INFO L93 Difference]: Finished difference Result 1016 states and 1572 transitions. [2022-04-06 13:53:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:13,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-06 13:53:13,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:13,249 INFO L225 Difference]: With dead ends: 1016 [2022-04-06 13:53:13,249 INFO L226 Difference]: Without dead ends: 540 [2022-04-06 13:53:13,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:13,250 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 71 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:13,250 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 581 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 13:53:13,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-04-06 13:53:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 502. [2022-04-06 13:53:13,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5472837022132797) internal successors, (769), 497 states have internal predecessors, (769), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 773 transitions. [2022-04-06 13:53:13,258 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 773 transitions. Word has length 147 [2022-04-06 13:53:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:13,259 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 773 transitions. [2022-04-06 13:53:13,259 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 773 transitions. [2022-04-06 13:53:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 13:53:13,260 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:13,260 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:13,260 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 13:53:13,260 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:13,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1894973686, now seen corresponding path program 1 times [2022-04-06 13:53:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:13,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246447096] [2022-04-06 13:53:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:13,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:13,353 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 13:53:13,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:13,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246447096] [2022-04-06 13:53:13,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246447096] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:13,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:13,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:13,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967231949] [2022-04-06 13:53:13,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:13,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:13,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:13,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:13,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:13,354 INFO L87 Difference]: Start difference. First operand 502 states and 773 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:14,859 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 [] [2022-04-06 13:53:16,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:18,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:19,154 INFO L93 Difference]: Finished difference Result 1060 states and 1636 transitions. [2022-04-06 13:53:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:19,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 13:53:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:19,156 INFO L225 Difference]: With dead ends: 1060 [2022-04-06 13:53:19,156 INFO L226 Difference]: Without dead ends: 584 [2022-04-06 13:53:19,156 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:19,157 INFO L913 BasicCegarLoop]: 144 mSDtfsCounter, 142 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:19,157 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 420 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 13:53:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-04-06 13:53:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 502. [2022-04-06 13:53:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5331991951710262) internal successors, (762), 497 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 766 transitions. [2022-04-06 13:53:19,164 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 766 transitions. Word has length 148 [2022-04-06 13:53:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:19,164 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 766 transitions. [2022-04-06 13:53:19,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 766 transitions. [2022-04-06 13:53:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 13:53:19,165 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:19,165 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:19,165 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 13:53:19,165 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:19,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1482094416, now seen corresponding path program 1 times [2022-04-06 13:53:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:19,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066155879] [2022-04-06 13:53:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:19,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 13:53:19,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:19,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066155879] [2022-04-06 13:53:19,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066155879] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:19,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:19,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:53:19,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648220699] [2022-04-06 13:53:19,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:19,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:53:19,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:53:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:19,261 INFO L87 Difference]: Start difference. First operand 502 states and 766 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:20,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:21,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:22,719 INFO L93 Difference]: Finished difference Result 1451 states and 2236 transitions. [2022-04-06 13:53:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:53:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 13:53:22,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:22,722 INFO L225 Difference]: With dead ends: 1451 [2022-04-06 13:53:22,722 INFO L226 Difference]: Without dead ends: 975 [2022-04-06 13:53:22,723 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:22,723 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 154 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:22,723 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 460 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 13:53:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-04-06 13:53:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-04-06 13:53:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 970 states have (on average 1.5195876288659793) internal successors, (1474), 970 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1478 transitions. [2022-04-06 13:53:22,739 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1478 transitions. Word has length 149 [2022-04-06 13:53:22,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:22,739 INFO L478 AbstractCegarLoop]: Abstraction has 975 states and 1478 transitions. [2022-04-06 13:53:22,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:22,739 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1478 transitions. [2022-04-06 13:53:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 13:53:22,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:22,741 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:22,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 13:53:22,741 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:22,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1682086255, now seen corresponding path program 1 times [2022-04-06 13:53:22,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:22,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781437902] [2022-04-06 13:53:22,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:22,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:22,870 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-06 13:53:22,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:22,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781437902] [2022-04-06 13:53:22,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781437902] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:22,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:22,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:53:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129158568] [2022-04-06 13:53:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:22,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:53:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:53:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:22,871 INFO L87 Difference]: Start difference. First operand 975 states and 1478 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 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) [2022-04-06 13:53:24,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:25,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:26,550 INFO L93 Difference]: Finished difference Result 1951 states and 2963 transitions. [2022-04-06 13:53:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:53:26,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 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 149 [2022-04-06 13:53:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:26,553 INFO L225 Difference]: With dead ends: 1951 [2022-04-06 13:53:26,553 INFO L226 Difference]: Without dead ends: 1002 [2022-04-06 13:53:26,554 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:26,555 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:26,555 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 441 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-06 13:53:26,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-04-06 13:53:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2022-04-06 13:53:26,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 997 states have (on average 1.5135406218655967) internal successors, (1509), 997 states have internal predecessors, (1509), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:26,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1513 transitions. [2022-04-06 13:53:26,566 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1513 transitions. Word has length 149 [2022-04-06 13:53:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:26,566 INFO L478 AbstractCegarLoop]: Abstraction has 1002 states and 1513 transitions. [2022-04-06 13:53:26,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 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) [2022-04-06 13:53:26,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1513 transitions. [2022-04-06 13:53:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 13:53:26,568 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:26,568 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:26,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 13:53:26,568 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:26,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:26,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1251169454, now seen corresponding path program 1 times [2022-04-06 13:53:26,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:26,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142853369] [2022-04-06 13:53:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:26,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-04-06 13:53:26,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:26,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142853369] [2022-04-06 13:53:26,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142853369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:26,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:26,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:53:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372907250] [2022-04-06 13:53:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:26,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:53:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:53:26,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:26,642 INFO L87 Difference]: Start difference. First operand 1002 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:28,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:29,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:31,085 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 [] [2022-04-06 13:53:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:31,449 INFO L93 Difference]: Finished difference Result 1980 states and 2999 transitions. [2022-04-06 13:53:31,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:53:31,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 13:53:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:31,452 INFO L225 Difference]: With dead ends: 1980 [2022-04-06 13:53:31,452 INFO L226 Difference]: Without dead ends: 1004 [2022-04-06 13:53:31,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:31,454 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:31,454 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 420 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 13:53:31,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-04-06 13:53:31,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2022-04-06 13:53:31,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 999 states have (on average 1.5125125125125125) internal successors, (1511), 999 states have internal predecessors, (1511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1515 transitions. [2022-04-06 13:53:31,468 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1515 transitions. Word has length 149 [2022-04-06 13:53:31,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:31,468 INFO L478 AbstractCegarLoop]: Abstraction has 1004 states and 1515 transitions. [2022-04-06 13:53:31,468 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1515 transitions. [2022-04-06 13:53:31,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-04-06 13:53:31,470 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:31,470 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:31,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 13:53:31,470 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:31,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:31,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1922874825, now seen corresponding path program 1 times [2022-04-06 13:53:31,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:31,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894892012] [2022-04-06 13:53:31,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:31,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 13:53:31,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:31,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894892012] [2022-04-06 13:53:31,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894892012] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:31,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:31,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:53:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713399642] [2022-04-06 13:53:31,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:31,591 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:53:31,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:53:31,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:31,593 INFO L87 Difference]: Start difference. First operand 1004 states and 1515 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:33,365 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 [] [2022-04-06 13:53:35,382 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 [] [2022-04-06 13:53:35,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:35,861 INFO L93 Difference]: Finished difference Result 2453 states and 3732 transitions. [2022-04-06 13:53:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:53:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-04-06 13:53:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:35,865 INFO L225 Difference]: With dead ends: 2453 [2022-04-06 13:53:35,865 INFO L226 Difference]: Without dead ends: 1477 [2022-04-06 13:53:35,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:35,867 INFO L913 BasicCegarLoop]: 407 mSDtfsCounter, 159 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:35,867 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 601 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-04-06 13:53:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-04-06 13:53:35,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1477. [2022-04-06 13:53:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1472 states have (on average 1.5101902173913044) internal successors, (2223), 1472 states have internal predecessors, (2223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2227 transitions. [2022-04-06 13:53:35,884 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2227 transitions. Word has length 151 [2022-04-06 13:53:35,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:35,884 INFO L478 AbstractCegarLoop]: Abstraction has 1477 states and 2227 transitions. [2022-04-06 13:53:35,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2227 transitions. [2022-04-06 13:53:35,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-04-06 13:53:35,886 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:35,887 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:35,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 13:53:35,887 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:35,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:35,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2054889748, now seen corresponding path program 1 times [2022-04-06 13:53:35,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:35,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054241645] [2022-04-06 13:53:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:35,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 13:53:36,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:36,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054241645] [2022-04-06 13:53:36,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054241645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:36,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:36,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:36,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75998393] [2022-04-06 13:53:36,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:36,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:36,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:36,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:36,034 INFO L87 Difference]: Start difference. First operand 1477 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:37,506 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 [] [2022-04-06 13:53:39,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:41,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:42,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:43,017 INFO L93 Difference]: Finished difference Result 3167 states and 4743 transitions. [2022-04-06 13:53:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:43,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-04-06 13:53:43,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:43,022 INFO L225 Difference]: With dead ends: 3167 [2022-04-06 13:53:43,022 INFO L226 Difference]: Without dead ends: 1718 [2022-04-06 13:53:43,023 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:43,025 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 134 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:43,025 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 452 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-04-06 13:53:43,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-04-06 13:53:43,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1453. [2022-04-06 13:53:43,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1448 states have (on average 1.5041436464088398) internal successors, (2178), 1448 states have internal predecessors, (2178), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2182 transitions. [2022-04-06 13:53:43,048 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2182 transitions. Word has length 180 [2022-04-06 13:53:43,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:43,048 INFO L478 AbstractCegarLoop]: Abstraction has 1453 states and 2182 transitions. [2022-04-06 13:53:43,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2182 transitions. [2022-04-06 13:53:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-04-06 13:53:43,050 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:43,051 INFO L499 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, 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] [2022-04-06 13:53:43,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 13:53:43,051 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash -657160692, now seen corresponding path program 1 times [2022-04-06 13:53:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:43,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305773733] [2022-04-06 13:53:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:43,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-04-06 13:53:43,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:43,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305773733] [2022-04-06 13:53:43,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305773733] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:43,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:43,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:43,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142209724] [2022-04-06 13:53:43,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:43,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:43,179 INFO L87 Difference]: Start difference. First operand 1453 states and 2182 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 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) [2022-04-06 13:53:45,492 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 [] [2022-04-06 13:53:47,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:49,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:53:49,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:49,671 INFO L93 Difference]: Finished difference Result 3058 states and 4596 transitions. [2022-04-06 13:53:49,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:49,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 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 200 [2022-04-06 13:53:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:49,675 INFO L225 Difference]: With dead ends: 3058 [2022-04-06 13:53:49,675 INFO L226 Difference]: Without dead ends: 1633 [2022-04-06 13:53:49,677 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:49,677 INFO L913 BasicCegarLoop]: 276 mSDtfsCounter, 49 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:49,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 689 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 539 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 13:53:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2022-04-06 13:53:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1537. [2022-04-06 13:53:49,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1532 states have (on average 1.5058746736292428) internal successors, (2307), 1532 states have internal predecessors, (2307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2311 transitions. [2022-04-06 13:53:49,699 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2311 transitions. Word has length 200 [2022-04-06 13:53:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:49,699 INFO L478 AbstractCegarLoop]: Abstraction has 1537 states and 2311 transitions. [2022-04-06 13:53:49,699 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 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) [2022-04-06 13:53:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2311 transitions. [2022-04-06 13:53:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-04-06 13:53:49,701 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:49,701 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:49,701 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 13:53:49,702 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:49,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:49,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1785983448, now seen corresponding path program 1 times [2022-04-06 13:53:49,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:49,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877587781] [2022-04-06 13:53:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:49,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-04-06 13:53:49,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:49,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877587781] [2022-04-06 13:53:49,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877587781] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:49,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:49,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 13:53:49,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346537377] [2022-04-06 13:53:49,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:49,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 13:53:49,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 13:53:49,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:49,834 INFO L87 Difference]: Start difference. First operand 1537 states and 2311 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:51,841 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 [] [2022-04-06 13:53:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:52,316 INFO L93 Difference]: Finished difference Result 3046 states and 4590 transitions. [2022-04-06 13:53:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-06 13:53:52,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-04-06 13:53:52,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:52,320 INFO L225 Difference]: With dead ends: 3046 [2022-04-06 13:53:52,320 INFO L226 Difference]: Without dead ends: 1537 [2022-04-06 13:53:52,322 INFO L912 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 [2022-04-06 13:53:52,322 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 167 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:52,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 448 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 546 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:53:52,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2022-04-06 13:53:52,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1537. [2022-04-06 13:53:52,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1532 states have (on average 1.5039164490861618) internal successors, (2304), 1532 states have internal predecessors, (2304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2308 transitions. [2022-04-06 13:53:52,342 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2308 transitions. Word has length 203 [2022-04-06 13:53:52,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:52,342 INFO L478 AbstractCegarLoop]: Abstraction has 1537 states and 2308 transitions. [2022-04-06 13:53:52,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:52,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2308 transitions. [2022-04-06 13:53:52,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-04-06 13:53:52,344 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:52,344 INFO L499 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, 1, 1] [2022-04-06 13:53:52,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 13:53:52,345 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:52,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:52,345 INFO L85 PathProgramCache]: Analyzing trace with hash -346122628, now seen corresponding path program 1 times [2022-04-06 13:53:52,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:52,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339137415] [2022-04-06 13:53:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:52,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-06 13:53:52,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:52,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339137415] [2022-04-06 13:53:52,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339137415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:52,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:52,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:53:52,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749427852] [2022-04-06 13:53:52,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:52,474 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:53:52,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:52,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:53:52,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:52,476 INFO L87 Difference]: Start difference. First operand 1537 states and 2308 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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) [2022-04-06 13:53:53,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:53,824 INFO L93 Difference]: Finished difference Result 3540 states and 5346 transitions. [2022-04-06 13:53:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:53:53,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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 204 [2022-04-06 13:53:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:53,829 INFO L225 Difference]: With dead ends: 3540 [2022-04-06 13:53:53,830 INFO L226 Difference]: Without dead ends: 2031 [2022-04-06 13:53:53,831 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:53:53,832 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:53,832 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 393 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-06 13:53:53,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2022-04-06 13:53:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2022-04-06 13:53:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.5054294175715697) internal successors, (3050), 2026 states have internal predecessors, (3050), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3054 transitions. [2022-04-06 13:53:53,857 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3054 transitions. Word has length 204 [2022-04-06 13:53:53,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:53,858 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 3054 transitions. [2022-04-06 13:53:53,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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) [2022-04-06 13:53:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3054 transitions. [2022-04-06 13:53:53,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-04-06 13:53:53,861 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:53,861 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:53,861 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 13:53:53,861 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash 202349403, now seen corresponding path program 1 times [2022-04-06 13:53:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:53,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828096234] [2022-04-06 13:53:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:53,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-04-06 13:53:53,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:53,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828096234] [2022-04-06 13:53:53,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828096234] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:53,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:53,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:53,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680114162] [2022-04-06 13:53:54,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:54,000 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:54,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:54,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:54,000 INFO L87 Difference]: Start difference. First operand 2031 states and 3054 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 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) [2022-04-06 13:53:56,269 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 [] [2022-04-06 13:53:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:57,214 INFO L93 Difference]: Finished difference Result 4315 states and 6452 transitions. [2022-04-06 13:53:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:57,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 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 250 [2022-04-06 13:53:57,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:57,232 INFO L225 Difference]: With dead ends: 4315 [2022-04-06 13:53:57,232 INFO L226 Difference]: Without dead ends: 2312 [2022-04-06 13:53:57,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:57,234 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 149 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:57,235 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 472 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 13:53:57,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-04-06 13:53:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2031. [2022-04-06 13:53:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4896347482724581) internal successors, (3018), 2026 states have internal predecessors, (3018), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3022 transitions. [2022-04-06 13:53:57,262 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3022 transitions. Word has length 250 [2022-04-06 13:53:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:57,263 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 3022 transitions. [2022-04-06 13:53:57,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 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) [2022-04-06 13:53:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3022 transitions. [2022-04-06 13:53:57,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-04-06 13:53:57,265 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:57,266 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:53:57,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 13:53:57,266 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:57,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1727594732, now seen corresponding path program 1 times [2022-04-06 13:53:57,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:57,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902872919] [2022-04-06 13:53:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:53:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:53:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-04-06 13:53:57,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:53:57,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902872919] [2022-04-06 13:53:57,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902872919] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:53:57,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:53:57,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:53:57,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605379308] [2022-04-06 13:53:57,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:53:57,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:53:57,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:53:57,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:53:57,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:53:57,386 INFO L87 Difference]: Start difference. First operand 2031 states and 3022 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:59,393 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 [] [2022-04-06 13:53:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:53:59,862 INFO L93 Difference]: Finished difference Result 4315 states and 6388 transitions. [2022-04-06 13:53:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:53:59,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-04-06 13:53:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:53:59,866 INFO L225 Difference]: With dead ends: 4315 [2022-04-06 13:53:59,866 INFO L226 Difference]: Without dead ends: 2312 [2022-04-06 13:53:59,868 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:53:59,868 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 141 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:53:59,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 519 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:53:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-04-06 13:53:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2031. [2022-04-06 13:53:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4718657453109576) internal successors, (2982), 2026 states have internal predecessors, (2982), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2986 transitions. [2022-04-06 13:53:59,925 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2986 transitions. Word has length 254 [2022-04-06 13:53:59,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:53:59,925 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 2986 transitions. [2022-04-06 13:53:59,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:53:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2986 transitions. [2022-04-06 13:53:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-04-06 13:53:59,938 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:53:59,938 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 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] [2022-04-06 13:53:59,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 13:53:59,938 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:53:59,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:53:59,938 INFO L85 PathProgramCache]: Analyzing trace with hash 928481516, now seen corresponding path program 1 times [2022-04-06 13:53:59,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:53:59,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332116633] [2022-04-06 13:53:59,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:53:59,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:53:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-04-06 13:54:00,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:00,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332116633] [2022-04-06 13:54:00,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332116633] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:00,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:00,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:00,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759682425] [2022-04-06 13:54:00,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:00,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:00,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:00,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:00,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:00,051 INFO L87 Difference]: Start difference. First operand 2031 states and 2986 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:01,683 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 [] [2022-04-06 13:54:03,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:05,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:06,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:06,711 INFO L93 Difference]: Finished difference Result 4122 states and 6066 transitions. [2022-04-06 13:54:06,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:06,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-04-06 13:54:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:06,714 INFO L225 Difference]: With dead ends: 4122 [2022-04-06 13:54:06,714 INFO L226 Difference]: Without dead ends: 2119 [2022-04-06 13:54:06,715 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:06,715 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 43 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:06,716 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 673 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 13:54:06,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2022-04-06 13:54:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 2031. [2022-04-06 13:54:06,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4698914116485686) internal successors, (2978), 2026 states have internal predecessors, (2978), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2982 transitions. [2022-04-06 13:54:06,743 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2982 transitions. Word has length 254 [2022-04-06 13:54:06,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:06,743 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 2982 transitions. [2022-04-06 13:54:06,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:06,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2982 transitions. [2022-04-06 13:54:06,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-04-06 13:54:06,746 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:06,746 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 4, 4, 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] [2022-04-06 13:54:06,746 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 13:54:06,746 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2128150485, now seen corresponding path program 1 times [2022-04-06 13:54:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:06,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372755876] [2022-04-06 13:54:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:06,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-04-06 13:54:06,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:06,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372755876] [2022-04-06 13:54:06,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372755876] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:06,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:06,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936573248] [2022-04-06 13:54:06,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:06,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:06,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:06,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:06,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:06,855 INFO L87 Difference]: Start difference. First operand 2031 states and 2982 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:07,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:10,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:12,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:13,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:14,269 INFO L93 Difference]: Finished difference Result 4315 states and 6308 transitions. [2022-04-06 13:54:14,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:14,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-04-06 13:54:14,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:14,273 INFO L225 Difference]: With dead ends: 4315 [2022-04-06 13:54:14,273 INFO L226 Difference]: Without dead ends: 2312 [2022-04-06 13:54:14,275 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:14,275 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 140 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:14,276 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 472 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-04-06 13:54:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-04-06 13:54:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2031. [2022-04-06 13:54:14,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.452122408687068) internal successors, (2942), 2026 states have internal predecessors, (2942), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2946 transitions. [2022-04-06 13:54:14,347 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2946 transitions. Word has length 255 [2022-04-06 13:54:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:14,347 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 2946 transitions. [2022-04-06 13:54:14,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2946 transitions. [2022-04-06 13:54:14,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-04-06 13:54:14,351 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:14,351 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:14,351 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 13:54:14,351 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:14,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1719015786, now seen corresponding path program 1 times [2022-04-06 13:54:14,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:14,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651685933] [2022-04-06 13:54:14,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:14,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:14,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-04-06 13:54:14,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:14,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651685933] [2022-04-06 13:54:14,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651685933] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:14,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:14,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295270204] [2022-04-06 13:54:14,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:14,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:14,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:14,499 INFO L87 Difference]: Start difference. First operand 2031 states and 2946 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:18,421 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 [] [2022-04-06 13:54:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:18,810 INFO L93 Difference]: Finished difference Result 4087 states and 5939 transitions. [2022-04-06 13:54:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:18,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 255 [2022-04-06 13:54:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:18,814 INFO L225 Difference]: With dead ends: 4087 [2022-04-06 13:54:18,814 INFO L226 Difference]: Without dead ends: 2084 [2022-04-06 13:54:18,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:18,816 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 30 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:18,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 653 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 13:54:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2022-04-06 13:54:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2031. [2022-04-06 13:54:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2026 states have (on average 1.4501480750246791) internal successors, (2938), 2026 states have internal predecessors, (2938), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2942 transitions. [2022-04-06 13:54:18,842 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2942 transitions. Word has length 255 [2022-04-06 13:54:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:18,842 INFO L478 AbstractCegarLoop]: Abstraction has 2031 states and 2942 transitions. [2022-04-06 13:54:18,842 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:18,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2942 transitions. [2022-04-06 13:54:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-04-06 13:54:18,845 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:18,845 INFO L499 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:18,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 13:54:18,845 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:18,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash -107181123, now seen corresponding path program 1 times [2022-04-06 13:54:18,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:18,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283775835] [2022-04-06 13:54:18,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:18,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-04-06 13:54:18,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:18,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283775835] [2022-04-06 13:54:18,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283775835] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:18,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:18,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:18,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56756275] [2022-04-06 13:54:18,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:18,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:18,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:18,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:18,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:18,989 INFO L87 Difference]: Start difference. First operand 2031 states and 2942 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:21,198 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 [] [2022-04-06 13:54:23,223 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 [] [2022-04-06 13:54:23,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:23,662 INFO L93 Difference]: Finished difference Result 4527 states and 6569 transitions. [2022-04-06 13:54:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:23,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-04-06 13:54:23,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:23,666 INFO L225 Difference]: With dead ends: 4527 [2022-04-06 13:54:23,666 INFO L226 Difference]: Without dead ends: 2524 [2022-04-06 13:54:23,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:23,669 INFO L913 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:23,669 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 13:54:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-04-06 13:54:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2524. [2022-04-06 13:54:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 2519 states have (on average 1.4485907105994442) internal successors, (3649), 2519 states have internal predecessors, (3649), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:23,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 3653 transitions. [2022-04-06 13:54:23,701 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 3653 transitions. Word has length 257 [2022-04-06 13:54:23,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:23,702 INFO L478 AbstractCegarLoop]: Abstraction has 2524 states and 3653 transitions. [2022-04-06 13:54:23,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:23,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 3653 transitions. [2022-04-06 13:54:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-04-06 13:54:23,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:23,734 INFO L499 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:23,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 13:54:23,734 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:23,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:23,735 INFO L85 PathProgramCache]: Analyzing trace with hash 689420994, now seen corresponding path program 1 times [2022-04-06 13:54:23,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:23,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083368906] [2022-04-06 13:54:23,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:23,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-04-06 13:54:23,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:23,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083368906] [2022-04-06 13:54:23,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083368906] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:23,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:23,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:23,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460099105] [2022-04-06 13:54:23,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:23,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:23,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:23,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:23,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:23,857 INFO L87 Difference]: Start difference. First operand 2524 states and 3653 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:27,600 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 [] [2022-04-06 13:54:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:27,966 INFO L93 Difference]: Finished difference Result 5141 states and 7437 transitions. [2022-04-06 13:54:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:27,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 263 [2022-04-06 13:54:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:27,984 INFO L225 Difference]: With dead ends: 5141 [2022-04-06 13:54:27,984 INFO L226 Difference]: Without dead ends: 2645 [2022-04-06 13:54:27,987 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:27,987 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 14 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:27,987 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 637 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 13:54:27,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-04-06 13:54:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2629. [2022-04-06 13:54:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2624 states have (on average 1.4439786585365855) internal successors, (3789), 2624 states have internal predecessors, (3789), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3793 transitions. [2022-04-06 13:54:28,022 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3793 transitions. Word has length 263 [2022-04-06 13:54:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:28,022 INFO L478 AbstractCegarLoop]: Abstraction has 2629 states and 3793 transitions. [2022-04-06 13:54:28,022 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3793 transitions. [2022-04-06 13:54:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-04-06 13:54:28,025 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:28,025 INFO L499 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, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:28,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 13:54:28,026 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 74849305, now seen corresponding path program 1 times [2022-04-06 13:54:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:28,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253297581] [2022-04-06 13:54:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:28,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-04-06 13:54:28,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:28,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253297581] [2022-04-06 13:54:28,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253297581] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:28,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:28,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:54:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110168813] [2022-04-06 13:54:28,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:28,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:54:28,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:28,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:54:28,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:54:28,158 INFO L87 Difference]: Start difference. First operand 2629 states and 3793 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:29,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:31,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:33,611 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 [] [2022-04-06 13:54:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:34,095 INFO L93 Difference]: Finished difference Result 5580 states and 8052 transitions. [2022-04-06 13:54:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:54:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 265 [2022-04-06 13:54:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:34,100 INFO L225 Difference]: With dead ends: 5580 [2022-04-06 13:54:34,100 INFO L226 Difference]: Without dead ends: 2979 [2022-04-06 13:54:34,103 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:54:34,105 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 64 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:34,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 699 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 565 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 13:54:34,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-04-06 13:54:34,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2749. [2022-04-06 13:54:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2744 states have (on average 1.4409620991253644) internal successors, (3954), 2744 states have internal predecessors, (3954), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3958 transitions. [2022-04-06 13:54:34,146 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3958 transitions. Word has length 265 [2022-04-06 13:54:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:34,146 INFO L478 AbstractCegarLoop]: Abstraction has 2749 states and 3958 transitions. [2022-04-06 13:54:34,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3958 transitions. [2022-04-06 13:54:34,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-04-06 13:54:34,149 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:34,149 INFO L499 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:34,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 13:54:34,150 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:34,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash 591860456, now seen corresponding path program 1 times [2022-04-06 13:54:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:34,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806221419] [2022-04-06 13:54:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:34,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 450 proven. 46 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-06 13:54:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:34,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806221419] [2022-04-06 13:54:34,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806221419] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:54:34,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612621264] [2022-04-06 13:54:34,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:34,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:54:34,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:54:34,348 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) [2022-04-06 13:54:34,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 13:54:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:35,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-06 13:54:35,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:54:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-04-06 13:54:35,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-06 13:54:35,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612621264] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:35,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-06 13:54:35,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-04-06 13:54:35,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452817557] [2022-04-06 13:54:35,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:35,569 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-06 13:54:35,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-06 13:54:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-06 13:54:35,569 INFO L87 Difference]: Start difference. First operand 2749 states and 3958 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2022-04-06 13:54:35,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:35,656 INFO L93 Difference]: Finished difference Result 6009 states and 8679 transitions. [2022-04-06 13:54:35,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-06 13:54:35,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 269 [2022-04-06 13:54:35,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:35,660 INFO L225 Difference]: With dead ends: 6009 [2022-04-06 13:54:35,661 INFO L226 Difference]: Without dead ends: 3288 [2022-04-06 13:54:35,664 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-06 13:54:35,664 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:35,664 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 394 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 13:54:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2022-04-06 13:54:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3288. [2022-04-06 13:54:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3283 states have (on average 1.442278403898873) internal successors, (4735), 3283 states have internal predecessors, (4735), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4739 transitions. [2022-04-06 13:54:35,736 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4739 transitions. Word has length 269 [2022-04-06 13:54:35,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:35,737 INFO L478 AbstractCegarLoop]: Abstraction has 3288 states and 4739 transitions. [2022-04-06 13:54:35,737 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2022-04-06 13:54:35,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4739 transitions. [2022-04-06 13:54:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-04-06 13:54:35,741 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:35,741 INFO L499 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, 1, 1] [2022-04-06 13:54:35,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 13:54:35,960 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,SelfDestructingSolverStorable49 [2022-04-06 13:54:35,960 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash -32022594, now seen corresponding path program 1 times [2022-04-06 13:54:35,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:35,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624183991] [2022-04-06 13:54:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:35,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-06 13:54:36,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:36,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624183991] [2022-04-06 13:54:36,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624183991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:36,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:36,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491249750] [2022-04-06 13:54:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:36,136 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:36,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:36,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:36,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:36,137 INFO L87 Difference]: Start difference. First operand 3288 states and 4739 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:38,098 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 [] [2022-04-06 13:54:39,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:40,191 INFO L93 Difference]: Finished difference Result 7079 states and 10228 transitions. [2022-04-06 13:54:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:40,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-04-06 13:54:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:40,197 INFO L225 Difference]: With dead ends: 7079 [2022-04-06 13:54:40,197 INFO L226 Difference]: Without dead ends: 3819 [2022-04-06 13:54:40,201 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:40,203 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:40,203 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 600 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 13:54:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2022-04-06 13:54:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2022-04-06 13:54:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3819 states, 3814 states have (on average 1.441793392763503) internal successors, (5499), 3814 states have internal predecessors, (5499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5503 transitions. [2022-04-06 13:54:40,273 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5503 transitions. Word has length 277 [2022-04-06 13:54:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:40,273 INFO L478 AbstractCegarLoop]: Abstraction has 3819 states and 5503 transitions. [2022-04-06 13:54:40,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5503 transitions. [2022-04-06 13:54:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-04-06 13:54:40,278 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:40,278 INFO L499 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, 1, 1] [2022-04-06 13:54:40,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-06 13:54:40,279 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:40,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:40,279 INFO L85 PathProgramCache]: Analyzing trace with hash -480719233, now seen corresponding path program 1 times [2022-04-06 13:54:40,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:40,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497968444] [2022-04-06 13:54:40,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-06 13:54:40,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:40,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497968444] [2022-04-06 13:54:40,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497968444] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:40,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:40,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936913326] [2022-04-06 13:54:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:40,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:40,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:40,415 INFO L87 Difference]: Start difference. First operand 3819 states and 5503 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:41,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:43,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:45,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:46,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:46,124 INFO L93 Difference]: Finished difference Result 8116 states and 11721 transitions. [2022-04-06 13:54:46,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:46,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-04-06 13:54:46,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:46,130 INFO L225 Difference]: With dead ends: 8116 [2022-04-06 13:54:46,130 INFO L226 Difference]: Without dead ends: 4325 [2022-04-06 13:54:46,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:46,136 INFO L913 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:46,136 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 13:54:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2022-04-06 13:54:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4325. [2022-04-06 13:54:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4320 states have (on average 1.4407407407407407) internal successors, (6224), 4320 states have internal predecessors, (6224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:46,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6228 transitions. [2022-04-06 13:54:46,212 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6228 transitions. Word has length 277 [2022-04-06 13:54:46,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:46,213 INFO L478 AbstractCegarLoop]: Abstraction has 4325 states and 6228 transitions. [2022-04-06 13:54:46,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:46,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6228 transitions. [2022-04-06 13:54:46,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-04-06 13:54:46,218 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:46,218 INFO L499 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, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:54:46,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-06 13:54:46,218 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1753532031, now seen corresponding path program 1 times [2022-04-06 13:54:46,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:46,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561000467] [2022-04-06 13:54:46,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:46,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:46,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-04-06 13:54:46,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:46,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561000467] [2022-04-06 13:54:46,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561000467] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:46,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:46,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:46,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806573627] [2022-04-06 13:54:46,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:46,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:46,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:46,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:46,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:46,389 INFO L87 Difference]: Start difference. First operand 4325 states and 6228 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:47,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:49,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:50,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:51,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:51,229 INFO L93 Difference]: Finished difference Result 9161 states and 13219 transitions. [2022-04-06 13:54:51,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:51,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 372 [2022-04-06 13:54:51,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:51,235 INFO L225 Difference]: With dead ends: 9161 [2022-04-06 13:54:51,236 INFO L226 Difference]: Without dead ends: 4864 [2022-04-06 13:54:51,240 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:51,240 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:51,241 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 388 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 13:54:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4864 states. [2022-04-06 13:54:51,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4864 to 4864. [2022-04-06 13:54:51,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4864 states, 4859 states have (on average 1.4422720724428895) internal successors, (7008), 4859 states have internal predecessors, (7008), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4864 states to 4864 states and 7012 transitions. [2022-04-06 13:54:51,429 INFO L78 Accepts]: Start accepts. Automaton has 4864 states and 7012 transitions. Word has length 372 [2022-04-06 13:54:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:51,430 INFO L478 AbstractCegarLoop]: Abstraction has 4864 states and 7012 transitions. [2022-04-06 13:54:51,430 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:51,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4864 states and 7012 transitions. [2022-04-06 13:54:51,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-04-06 13:54:51,436 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:51,436 INFO L499 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] [2022-04-06 13:54:51,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-06 13:54:51,437 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:51,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:51,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1399260897, now seen corresponding path program 1 times [2022-04-06 13:54:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:51,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659451575] [2022-04-06 13:54:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:51,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:51,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-04-06 13:54:51,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:51,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659451575] [2022-04-06 13:54:51,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659451575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:51,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:51,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:51,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135779392] [2022-04-06 13:54:51,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:51,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:51,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:51,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:51,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:51,636 INFO L87 Difference]: Start difference. First operand 4864 states and 7012 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:53,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:54,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:56,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:54:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:54:57,047 INFO L93 Difference]: Finished difference Result 10232 states and 14776 transitions. [2022-04-06 13:54:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:54:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 400 [2022-04-06 13:54:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:54:57,054 INFO L225 Difference]: With dead ends: 10232 [2022-04-06 13:54:57,054 INFO L226 Difference]: Without dead ends: 5396 [2022-04-06 13:54:57,059 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:57,059 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:54:57,059 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 13:54:57,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2022-04-06 13:54:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5396. [2022-04-06 13:54:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5396 states, 5391 states have (on average 1.4418475236505286) internal successors, (7773), 5391 states have internal predecessors, (7773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 7777 transitions. [2022-04-06 13:54:57,144 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 7777 transitions. Word has length 400 [2022-04-06 13:54:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:54:57,145 INFO L478 AbstractCegarLoop]: Abstraction has 5396 states and 7777 transitions. [2022-04-06 13:54:57,145 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 7777 transitions. [2022-04-06 13:54:57,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-04-06 13:54:57,151 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:54:57,151 INFO L499 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, 1] [2022-04-06 13:54:57,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-06 13:54:57,152 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:54:57,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:54:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1076531027, now seen corresponding path program 1 times [2022-04-06 13:54:57,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:54:57,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511747699] [2022-04-06 13:54:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:54:57,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:54:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:54:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:54:57,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-04-06 13:54:57,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:54:57,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511747699] [2022-04-06 13:54:57,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511747699] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:54:57,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:54:57,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:54:57,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390209576] [2022-04-06 13:54:57,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:54:57,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:54:57,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:54:57,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:54:57,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:54:57,341 INFO L87 Difference]: Start difference. First operand 5396 states and 7777 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:54:59,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:01,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:03,320 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 [] [2022-04-06 13:55:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:03,865 INFO L93 Difference]: Finished difference Result 11264 states and 16258 transitions. [2022-04-06 13:55:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:03,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 401 [2022-04-06 13:55:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:03,872 INFO L225 Difference]: With dead ends: 11264 [2022-04-06 13:55:03,872 INFO L226 Difference]: Without dead ends: 5896 [2022-04-06 13:55:03,878 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:03,878 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:03,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 13:55:03,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-04-06 13:55:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5896. [2022-04-06 13:55:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5891 states have (on average 1.4411814632490239) internal successors, (8490), 5891 states have internal predecessors, (8490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:03,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 8494 transitions. [2022-04-06 13:55:03,970 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 8494 transitions. Word has length 401 [2022-04-06 13:55:03,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:03,971 INFO L478 AbstractCegarLoop]: Abstraction has 5896 states and 8494 transitions. [2022-04-06 13:55:03,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:03,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 8494 transitions. [2022-04-06 13:55:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-04-06 13:55:04,000 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:04,000 INFO L499 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, 9, 9, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:04,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-06 13:55:04,001 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:04,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:04,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1526715425, now seen corresponding path program 1 times [2022-04-06 13:55:04,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:04,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524756203] [2022-04-06 13:55:04,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:04,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2022-04-06 13:55:04,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:04,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524756203] [2022-04-06 13:55:04,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524756203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:04,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:04,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806819768] [2022-04-06 13:55:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:04,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:04,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:04,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:04,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:04,233 INFO L87 Difference]: Start difference. First operand 5896 states and 8494 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:06,446 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 [] [2022-04-06 13:55:07,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:07,185 INFO L93 Difference]: Finished difference Result 12303 states and 17751 transitions. [2022-04-06 13:55:07,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:07,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 496 [2022-04-06 13:55:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:07,192 INFO L225 Difference]: With dead ends: 12303 [2022-04-06 13:55:07,193 INFO L226 Difference]: Without dead ends: 6435 [2022-04-06 13:55:07,199 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:07,203 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:07,204 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 13:55:07,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-04-06 13:55:07,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6435. [2022-04-06 13:55:07,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6430 states have (on average 1.4427682737169518) internal successors, (9277), 6430 states have internal predecessors, (9277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 9281 transitions. [2022-04-06 13:55:07,307 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 9281 transitions. Word has length 496 [2022-04-06 13:55:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:07,308 INFO L478 AbstractCegarLoop]: Abstraction has 6435 states and 9281 transitions. [2022-04-06 13:55:07,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 9281 transitions. [2022-04-06 13:55:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-04-06 13:55:07,316 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:07,316 INFO L499 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, 1, 1] [2022-04-06 13:55:07,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-06 13:55:07,316 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:07,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1803077245, now seen corresponding path program 1 times [2022-04-06 13:55:07,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:07,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986003133] [2022-04-06 13:55:07,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:07,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-04-06 13:55:07,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:07,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986003133] [2022-04-06 13:55:07,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986003133] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:07,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:07,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:07,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909688922] [2022-04-06 13:55:07,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:07,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:07,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:07,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:07,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:07,577 INFO L87 Difference]: Start difference. First operand 6435 states and 9281 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:10,594 INFO L93 Difference]: Finished difference Result 13375 states and 19316 transitions. [2022-04-06 13:55:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:10,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 526 [2022-04-06 13:55:10,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:10,617 INFO L225 Difference]: With dead ends: 13375 [2022-04-06 13:55:10,617 INFO L226 Difference]: Without dead ends: 6968 [2022-04-06 13:55:10,649 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:10,649 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:10,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 13:55:10,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6968 states. [2022-04-06 13:55:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6968 to 6968. [2022-04-06 13:55:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 6963 states have (on average 1.4423380726698263) internal successors, (10043), 6963 states have internal predecessors, (10043), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:10,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 10047 transitions. [2022-04-06 13:55:10,765 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 10047 transitions. Word has length 526 [2022-04-06 13:55:10,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:10,765 INFO L478 AbstractCegarLoop]: Abstraction has 6968 states and 10047 transitions. [2022-04-06 13:55:10,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:10,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 10047 transitions. [2022-04-06 13:55:10,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-04-06 13:55:10,772 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:10,772 INFO L499 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, 1, 1, 1] [2022-04-06 13:55:10,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-06 13:55:10,773 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:10,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:10,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2130819225, now seen corresponding path program 1 times [2022-04-06 13:55:10,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:10,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363511725] [2022-04-06 13:55:10,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:10,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:11,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-04-06 13:55:11,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:11,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363511725] [2022-04-06 13:55:11,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363511725] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:11,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:11,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:11,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102749745] [2022-04-06 13:55:11,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:11,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:11,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:11,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:11,008 INFO L87 Difference]: Start difference. First operand 6968 states and 10047 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:12,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:14,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:16,940 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 [] [2022-04-06 13:55:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:17,475 INFO L93 Difference]: Finished difference Result 14409 states and 20800 transitions. [2022-04-06 13:55:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:17,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have 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 [2022-04-06 13:55:17,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:17,482 INFO L225 Difference]: With dead ends: 14409 [2022-04-06 13:55:17,482 INFO L226 Difference]: Without dead ends: 7469 [2022-04-06 13:55:17,488 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:17,488 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:17,488 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 13:55:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2022-04-06 13:55:17,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 7469. [2022-04-06 13:55:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7469 states, 7464 states have (on average 1.4417202572347267) internal successors, (10761), 7464 states have internal predecessors, (10761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7469 states to 7469 states and 10765 transitions. [2022-04-06 13:55:17,588 INFO L78 Accepts]: Start accepts. Automaton has 7469 states and 10765 transitions. Word has length 527 [2022-04-06 13:55:17,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:17,588 INFO L478 AbstractCegarLoop]: Abstraction has 7469 states and 10765 transitions. [2022-04-06 13:55:17,588 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:17,588 INFO L276 IsEmpty]: Start isEmpty. Operand 7469 states and 10765 transitions. [2022-04-06 13:55:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2022-04-06 13:55:17,598 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:17,598 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 11, 10, 10, 9, 9, 8, 8, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:17,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-06 13:55:17,598 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1570393095, now seen corresponding path program 1 times [2022-04-06 13:55:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:17,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008876718] [2022-04-06 13:55:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:17,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 1136 proven. 0 refuted. 0 times theorem prover too weak. 2605 trivial. 0 not checked. [2022-04-06 13:55:17,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:17,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008876718] [2022-04-06 13:55:17,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008876718] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:17,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:17,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:17,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461047027] [2022-04-06 13:55:17,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:17,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:17,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:17,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:17,975 INFO L87 Difference]: Start difference. First operand 7469 states and 10765 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:19,403 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 [] [2022-04-06 13:55:21,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:23,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:23,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:23,885 INFO L93 Difference]: Finished difference Result 15449 states and 22293 transitions. [2022-04-06 13:55:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:23,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 623 [2022-04-06 13:55:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:23,894 INFO L225 Difference]: With dead ends: 15449 [2022-04-06 13:55:23,894 INFO L226 Difference]: Without dead ends: 8008 [2022-04-06 13:55:23,902 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:23,902 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:23,902 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 304 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-06 13:55:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2022-04-06 13:55:24,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 8008. [2022-04-06 13:55:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8008 states, 8003 states have (on average 1.4433337498438086) internal successors, (11551), 8003 states have internal predecessors, (11551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8008 states to 8008 states and 11555 transitions. [2022-04-06 13:55:24,035 INFO L78 Accepts]: Start accepts. Automaton has 8008 states and 11555 transitions. Word has length 623 [2022-04-06 13:55:24,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:24,036 INFO L478 AbstractCegarLoop]: Abstraction has 8008 states and 11555 transitions. [2022-04-06 13:55:24,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 8008 states and 11555 transitions. [2022-04-06 13:55:24,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-04-06 13:55:24,046 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:24,046 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:24,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-06 13:55:24,046 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:24,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1012543035, now seen corresponding path program 1 times [2022-04-06 13:55:24,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:24,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759273286] [2022-04-06 13:55:24,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:24,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-04-06 13:55:24,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:24,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759273286] [2022-04-06 13:55:24,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759273286] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:24,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:24,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:24,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636198494] [2022-04-06 13:55:24,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:24,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:24,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:24,328 INFO L87 Difference]: Start difference. First operand 8008 states and 11555 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:26,343 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 [] [2022-04-06 13:55:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:26,848 INFO L93 Difference]: Finished difference Result 16522 states and 23866 transitions. [2022-04-06 13:55:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 655 [2022-04-06 13:55:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:26,858 INFO L225 Difference]: With dead ends: 16522 [2022-04-06 13:55:26,858 INFO L226 Difference]: Without dead ends: 8542 [2022-04-06 13:55:26,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:26,912 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:26,912 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:55:26,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-04-06 13:55:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 8542. [2022-04-06 13:55:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8542 states, 8537 states have (on average 1.4428956307836476) internal successors, (12318), 8537 states have internal predecessors, (12318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:27,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8542 states to 8542 states and 12322 transitions. [2022-04-06 13:55:27,025 INFO L78 Accepts]: Start accepts. Automaton has 8542 states and 12322 transitions. Word has length 655 [2022-04-06 13:55:27,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:27,025 INFO L478 AbstractCegarLoop]: Abstraction has 8542 states and 12322 transitions. [2022-04-06 13:55:27,025 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:27,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8542 states and 12322 transitions. [2022-04-06 13:55:27,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-04-06 13:55:27,035 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:27,036 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:27,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-06 13:55:27,036 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:27,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash -814672608, now seen corresponding path program 1 times [2022-04-06 13:55:27,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:27,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190369349] [2022-04-06 13:55:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:27,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 978 proven. 0 refuted. 0 times theorem prover too weak. 2968 trivial. 0 not checked. [2022-04-06 13:55:27,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:27,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190369349] [2022-04-06 13:55:27,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190369349] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:27,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:27,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:27,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466363670] [2022-04-06 13:55:27,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:27,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:27,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:27,387 INFO L87 Difference]: Start difference. First operand 8542 states and 12322 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:28,776 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 [] [2022-04-06 13:55:30,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:32,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:32,050 INFO L93 Difference]: Finished difference Result 17558 states and 25352 transitions. [2022-04-06 13:55:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:32,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-04-06 13:55:32,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:32,062 INFO L225 Difference]: With dead ends: 17558 [2022-04-06 13:55:32,062 INFO L226 Difference]: Without dead ends: 9044 [2022-04-06 13:55:32,086 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:32,087 INFO L913 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:32,087 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-06 13:55:32,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-04-06 13:55:32,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 9044. [2022-04-06 13:55:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 9039 states have (on average 1.4423055647748644) internal successors, (13037), 9039 states have internal predecessors, (13037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 13041 transitions. [2022-04-06 13:55:32,280 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 13041 transitions. Word has length 656 [2022-04-06 13:55:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:32,281 INFO L478 AbstractCegarLoop]: Abstraction has 9044 states and 13041 transitions. [2022-04-06 13:55:32,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:32,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 13041 transitions. [2022-04-06 13:55:32,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2022-04-06 13:55:32,295 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:32,295 INFO L499 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 14, 13, 13, 12, 12, 11, 11, 6, 6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:32,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-06 13:55:32,295 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:32,296 INFO L85 PathProgramCache]: Analyzing trace with hash 137782722, now seen corresponding path program 1 times [2022-04-06 13:55:32,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:32,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873492945] [2022-04-06 13:55:32,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:32,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:32,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5425 backedges. 1402 proven. 0 refuted. 0 times theorem prover too weak. 4023 trivial. 0 not checked. [2022-04-06 13:55:32,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:32,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873492945] [2022-04-06 13:55:32,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873492945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:32,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:32,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:55:32,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407487529] [2022-04-06 13:55:32,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:32,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:55:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:55:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:32,605 INFO L87 Difference]: Start difference. First operand 9044 states and 13041 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:33,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:35,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:37,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:37,911 INFO L93 Difference]: Finished difference Result 18599 states and 26845 transitions. [2022-04-06 13:55:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:55:37,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 753 [2022-04-06 13:55:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:37,922 INFO L225 Difference]: With dead ends: 18599 [2022-04-06 13:55:37,923 INFO L226 Difference]: Without dead ends: 9583 [2022-04-06 13:55:37,929 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:55:37,929 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:37,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-04-06 13:55:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2022-04-06 13:55:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 9583. [2022-04-06 13:55:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9583 states, 9578 states have (on average 1.4439340154520777) internal successors, (13830), 9578 states have internal predecessors, (13830), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9583 states to 9583 states and 13834 transitions. [2022-04-06 13:55:38,060 INFO L78 Accepts]: Start accepts. Automaton has 9583 states and 13834 transitions. Word has length 753 [2022-04-06 13:55:38,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:38,060 INFO L478 AbstractCegarLoop]: Abstraction has 9583 states and 13834 transitions. [2022-04-06 13:55:38,060 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9583 states and 13834 transitions. [2022-04-06 13:55:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-04-06 13:55:38,072 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:38,072 INFO L499 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:38,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-06 13:55:38,073 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1084698277, now seen corresponding path program 1 times [2022-04-06 13:55:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786071912] [2022-04-06 13:55:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2156 proven. 72 refuted. 0 times theorem prover too weak. 3474 trivial. 0 not checked. [2022-04-06 13:55:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:38,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786071912] [2022-04-06 13:55:38,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786071912] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:55:38,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025328181] [2022-04-06 13:55:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:38,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:55:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:55:38,795 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) [2022-04-06 13:55:38,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 13:55:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:40,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 47 conjunts are in the unsatisfiable core [2022-04-06 13:55:40,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:55:40,403 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:55:40,404 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 [2022-04-06 13:55:40,490 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-06 13:55:40,491 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 [2022-04-06 13:55:40,907 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 [2022-04-06 13:55:40,969 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:55:40,969 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 [2022-04-06 13:55:41,065 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:55:41,065 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 [2022-04-06 13:55:41,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-06 13:55:41,359 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 [2022-04-06 13:55:41,361 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 [2022-04-06 13:55:41,394 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-04-06 13:55:41,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-04-06 13:55:41,463 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-06 13:55:41,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-04-06 13:55:41,641 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:55:41,642 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 [2022-04-06 13:55:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2342 proven. 586 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-04-06 13:55:41,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:55:42,082 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 [2022-04-06 13:55:42,084 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 [2022-04-06 13:55:44,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 88 [2022-04-06 13:55:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2152 proven. 0 refuted. 0 times theorem prover too weak. 3550 trivial. 0 not checked. [2022-04-06 13:55:44,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025328181] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:55:44,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:55:44,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 13] total 19 [2022-04-06 13:55:44,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919218628] [2022-04-06 13:55:44,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:44,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 13:55:44,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 13:55:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-04-06 13:55:44,629 INFO L87 Difference]: Start difference. First operand 9583 states and 13834 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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) [2022-04-06 13:55:46,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:48,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:53,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:55:53,300 INFO L93 Difference]: Finished difference Result 26232 states and 37870 transitions. [2022-04-06 13:55:53,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 13:55:53,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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 787 [2022-04-06 13:55:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:55:53,319 INFO L225 Difference]: With dead ends: 26232 [2022-04-06 13:55:53,319 INFO L226 Difference]: Without dead ends: 16677 [2022-04-06 13:55:53,331 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1591 GetRequests, 1570 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-04-06 13:55:53,332 INFO L913 BasicCegarLoop]: 272 mSDtfsCounter, 443 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 109 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 190 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:55:53,332 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1061 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 523 Invalid, 1 Unknown, 190 Unchecked, 4.2s Time] [2022-04-06 13:55:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16677 states. [2022-04-06 13:55:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16677 to 14437. [2022-04-06 13:55:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14437 states, 14432 states have (on average 1.4543375831485588) internal successors, (20989), 14432 states have internal predecessors, (20989), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14437 states to 14437 states and 20993 transitions. [2022-04-06 13:55:53,664 INFO L78 Accepts]: Start accepts. Automaton has 14437 states and 20993 transitions. Word has length 787 [2022-04-06 13:55:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:55:53,665 INFO L478 AbstractCegarLoop]: Abstraction has 14437 states and 20993 transitions. [2022-04-06 13:55:53,665 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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) [2022-04-06 13:55:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 14437 states and 20993 transitions. [2022-04-06 13:55:53,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-04-06 13:55:53,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:55:53,684 INFO L499 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:55:53,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 13:55:53,907 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,SelfDestructingSolverStorable62 [2022-04-06 13:55:53,907 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:55:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:55:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash -871520774, now seen corresponding path program 1 times [2022-04-06 13:55:53,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:55:53,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302000112] [2022-04-06 13:55:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:55:53,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:55:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:55:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:55:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 3223 proven. 0 refuted. 0 times theorem prover too weak. 2479 trivial. 0 not checked. [2022-04-06 13:55:54,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:55:54,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302000112] [2022-04-06 13:55:54,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302000112] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:55:54,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:55:54,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:55:54,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935995423] [2022-04-06 13:55:54,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:55:54,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:55:54,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:55:54,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:55:54,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:55:54,218 INFO L87 Difference]: Start difference. First operand 14437 states and 20993 transitions. Second operand has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:55:55,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:57,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:55:59,583 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 [] [2022-04-06 13:56:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:01,265 INFO L93 Difference]: Finished difference Result 30922 states and 44924 transitions. [2022-04-06 13:56:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:01,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 787 [2022-04-06 13:56:01,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:01,285 INFO L225 Difference]: With dead ends: 30922 [2022-04-06 13:56:01,285 INFO L226 Difference]: Without dead ends: 16513 [2022-04-06 13:56:01,297 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:01,298 INFO L913 BasicCegarLoop]: 283 mSDtfsCounter, 54 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:01,298 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 703 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-06 13:56:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16513 states. [2022-04-06 13:56:01,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16513 to 15607. [2022-04-06 13:56:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15607 states, 15602 states have (on average 1.4568004102038201) internal successors, (22729), 15602 states have internal predecessors, (22729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15607 states to 15607 states and 22733 transitions. [2022-04-06 13:56:01,566 INFO L78 Accepts]: Start accepts. Automaton has 15607 states and 22733 transitions. Word has length 787 [2022-04-06 13:56:01,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:01,566 INFO L478 AbstractCegarLoop]: Abstraction has 15607 states and 22733 transitions. [2022-04-06 13:56:01,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:01,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15607 states and 22733 transitions. [2022-04-06 13:56:01,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2022-04-06 13:56:01,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:01,585 INFO L499 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:01,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-06 13:56:01,586 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:01,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:01,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1714969504, now seen corresponding path program 1 times [2022-04-06 13:56:01,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:01,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993152958] [2022-04-06 13:56:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:01,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:01,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5717 backedges. 3231 proven. 0 refuted. 0 times theorem prover too weak. 2486 trivial. 0 not checked. [2022-04-06 13:56:01,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:01,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993152958] [2022-04-06 13:56:01,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993152958] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:01,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:01,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79970627] [2022-04-06 13:56:01,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:01,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:01,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:01,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:01,949 INFO L87 Difference]: Start difference. First operand 15607 states and 22733 transitions. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:03,957 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 [] [2022-04-06 13:56:04,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:04,613 INFO L93 Difference]: Finished difference Result 32074 states and 46628 transitions. [2022-04-06 13:56:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 790 [2022-04-06 13:56:04,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:04,633 INFO L225 Difference]: With dead ends: 32074 [2022-04-06 13:56:04,633 INFO L226 Difference]: Without dead ends: 16387 [2022-04-06 13:56:04,648 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:04,648 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 53 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:04,649 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 701 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 566 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:56:04,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16387 states. [2022-04-06 13:56:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16387 to 15517. [2022-04-06 13:56:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15517 states, 15512 states have (on average 1.4575167612171223) internal successors, (22609), 15512 states have internal predecessors, (22609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15517 states to 15517 states and 22613 transitions. [2022-04-06 13:56:04,976 INFO L78 Accepts]: Start accepts. Automaton has 15517 states and 22613 transitions. Word has length 790 [2022-04-06 13:56:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:04,977 INFO L478 AbstractCegarLoop]: Abstraction has 15517 states and 22613 transitions. [2022-04-06 13:56:04,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand 15517 states and 22613 transitions. [2022-04-06 13:56:04,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2022-04-06 13:56:04,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:04,997 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:04,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-06 13:56:04,997 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:04,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:04,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1157508164, now seen corresponding path program 1 times [2022-04-06 13:56:04,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:04,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8103654] [2022-04-06 13:56:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:04,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 6944 backedges. 3949 proven. 46 refuted. 0 times theorem prover too weak. 2949 trivial. 0 not checked. [2022-04-06 13:56:05,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:05,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8103654] [2022-04-06 13:56:05,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8103654] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:05,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364322134] [2022-04-06 13:56:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:05,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:05,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:56:05,326 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) [2022-04-06 13:56:05,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 13:56:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:06,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 3637 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-06 13:56:06,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:56:06,978 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:06,978 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 [2022-04-06 13:56:07,015 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:56:07,016 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 [2022-04-06 13:56:07,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 13:56:07,518 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:07,518 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 [2022-04-06 13:56:07,588 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 [2022-04-06 13:56:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6944 backedges. 3944 proven. 238 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2022-04-06 13:56:07,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:56:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6944 backedges. 3917 proven. 0 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2022-04-06 13:56:08,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364322134] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:08,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:56:08,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-06 13:56:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922965200] [2022-04-06 13:56:08,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:08,774 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:56:08,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:08,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:56:08,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-06 13:56:08,775 INFO L87 Difference]: Start difference. First operand 15517 states and 22613 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2022-04-06 13:56:10,781 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 [] [2022-04-06 13:56:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:11,348 INFO L93 Difference]: Finished difference Result 33421 states and 48577 transitions. [2022-04-06 13:56:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:56:11,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 853 [2022-04-06 13:56:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:11,366 INFO L225 Difference]: With dead ends: 33421 [2022-04-06 13:56:11,367 INFO L226 Difference]: Without dead ends: 17932 [2022-04-06 13:56:11,378 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1716 GetRequests, 1706 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-06 13:56:11,378 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 121 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:11,379 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 622 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:56:11,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17932 states. [2022-04-06 13:56:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17932 to 15967. [2022-04-06 13:56:11,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15967 states, 15962 states have (on average 1.4604059641648917) internal successors, (23311), 15962 states have internal predecessors, (23311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:11,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15967 states to 15967 states and 23315 transitions. [2022-04-06 13:56:11,675 INFO L78 Accepts]: Start accepts. Automaton has 15967 states and 23315 transitions. Word has length 853 [2022-04-06 13:56:11,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:11,676 INFO L478 AbstractCegarLoop]: Abstraction has 15967 states and 23315 transitions. [2022-04-06 13:56:11,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2022-04-06 13:56:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand 15967 states and 23315 transitions. [2022-04-06 13:56:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2022-04-06 13:56:11,695 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:11,695 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:11,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-04-06 13:56:11,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:11,904 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:11,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:11,904 INFO L85 PathProgramCache]: Analyzing trace with hash 657738338, now seen corresponding path program 1 times [2022-04-06 13:56:11,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:11,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627237304] [2022-04-06 13:56:11,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:11,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6959 backedges. 3806 proven. 0 refuted. 0 times theorem prover too weak. 3153 trivial. 0 not checked. [2022-04-06 13:56:12,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:12,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627237304] [2022-04-06 13:56:12,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627237304] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:12,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:12,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:12,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592559131] [2022-04-06 13:56:12,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:12,184 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:12,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:12,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:12,184 INFO L87 Difference]: Start difference. First operand 15967 states and 23315 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:15,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:17,154 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 [] [2022-04-06 13:56:17,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:17,796 INFO L93 Difference]: Finished difference Result 32626 states and 47556 transitions. [2022-04-06 13:56:17,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 856 [2022-04-06 13:56:17,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:17,817 INFO L225 Difference]: With dead ends: 32626 [2022-04-06 13:56:17,818 INFO L226 Difference]: Without dead ends: 16687 [2022-04-06 13:56:17,833 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:17,833 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 24 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:17,833 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 651 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-06 13:56:17,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16687 states. [2022-04-06 13:56:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16687 to 16387. [2022-04-06 13:56:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16387 states, 16382 states have (on average 1.4559272372115737) internal successors, (23851), 16382 states have internal predecessors, (23851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16387 states to 16387 states and 23855 transitions. [2022-04-06 13:56:18,105 INFO L78 Accepts]: Start accepts. Automaton has 16387 states and 23855 transitions. Word has length 856 [2022-04-06 13:56:18,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:18,105 INFO L478 AbstractCegarLoop]: Abstraction has 16387 states and 23855 transitions. [2022-04-06 13:56:18,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:18,106 INFO L276 IsEmpty]: Start isEmpty. Operand 16387 states and 23855 transitions. [2022-04-06 13:56:18,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2022-04-06 13:56:18,124 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:18,124 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:18,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-06 13:56:18,125 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:18,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:18,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1600111913, now seen corresponding path program 1 times [2022-04-06 13:56:18,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:18,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530662110] [2022-04-06 13:56:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:18,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:18,440 INFO L134 CoverageAnalysis]: Checked inductivity of 7175 backedges. 3954 proven. 0 refuted. 0 times theorem prover too weak. 3221 trivial. 0 not checked. [2022-04-06 13:56:18,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:18,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530662110] [2022-04-06 13:56:18,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530662110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:18,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:18,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:18,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383650567] [2022-04-06 13:56:18,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:18,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:18,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:18,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:18,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:18,442 INFO L87 Difference]: Start difference. First operand 16387 states and 23855 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:21,455 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 [] [2022-04-06 13:56:22,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:24,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:25,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:25,166 INFO L93 Difference]: Finished difference Result 33646 states and 48988 transitions. [2022-04-06 13:56:25,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:25,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 865 [2022-04-06 13:56:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:25,188 INFO L225 Difference]: With dead ends: 33646 [2022-04-06 13:56:25,188 INFO L226 Difference]: Without dead ends: 17287 [2022-04-06 13:56:25,205 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:25,206 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 38 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:25,206 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 666 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-06 13:56:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17287 states. [2022-04-06 13:56:25,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17287 to 16927. [2022-04-06 13:56:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16927 states, 16922 states have (on average 1.4562699444510105) internal successors, (24643), 16922 states have internal predecessors, (24643), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:25,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16927 states to 16927 states and 24647 transitions. [2022-04-06 13:56:25,561 INFO L78 Accepts]: Start accepts. Automaton has 16927 states and 24647 transitions. Word has length 865 [2022-04-06 13:56:25,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:25,562 INFO L478 AbstractCegarLoop]: Abstraction has 16927 states and 24647 transitions. [2022-04-06 13:56:25,562 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16927 states and 24647 transitions. [2022-04-06 13:56:25,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2022-04-06 13:56:25,583 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:25,583 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:25,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-04-06 13:56:25,583 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:25,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash 696541794, now seen corresponding path program 1 times [2022-04-06 13:56:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:25,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199722495] [2022-04-06 13:56:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:25,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7271 backedges. 4020 proven. 0 refuted. 0 times theorem prover too weak. 3251 trivial. 0 not checked. [2022-04-06 13:56:25,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:25,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199722495] [2022-04-06 13:56:25,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199722495] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:56:25,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:56:25,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:56:25,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771451148] [2022-04-06 13:56:25,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:25,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:25,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:25,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:25,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:56:25,856 INFO L87 Difference]: Start difference. First operand 16927 states and 24647 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:27,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:29,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:56:31,267 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 [] [2022-04-06 13:56:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:32,809 INFO L93 Difference]: Finished difference Result 35444 states and 51612 transitions. [2022-04-06 13:56:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:32,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 871 [2022-04-06 13:56:32,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:32,829 INFO L225 Difference]: With dead ends: 35444 [2022-04-06 13:56:32,829 INFO L226 Difference]: Without dead ends: 18545 [2022-04-06 13:56:32,840 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:56:32,845 INFO L913 BasicCegarLoop]: 267 mSDtfsCounter, 40 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:32,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 671 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-06 13:56:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18545 states. [2022-04-06 13:56:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18545 to 17855. [2022-04-06 13:56:33,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17855 states, 17850 states have (on average 1.4568627450980391) internal successors, (26005), 17850 states have internal predecessors, (26005), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:33,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17855 states to 17855 states and 26009 transitions. [2022-04-06 13:56:33,152 INFO L78 Accepts]: Start accepts. Automaton has 17855 states and 26009 transitions. Word has length 871 [2022-04-06 13:56:33,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:33,152 INFO L478 AbstractCegarLoop]: Abstraction has 17855 states and 26009 transitions. [2022-04-06 13:56:33,152 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:33,152 INFO L276 IsEmpty]: Start isEmpty. Operand 17855 states and 26009 transitions. [2022-04-06 13:56:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-04-06 13:56:33,173 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:33,181 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:33,181 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-04-06 13:56:33,181 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:33,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:33,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1874680809, now seen corresponding path program 1 times [2022-04-06 13:56:33,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:33,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106344094] [2022-04-06 13:56:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 4579 proven. 227 refuted. 0 times theorem prover too weak. 2552 trivial. 0 not checked. [2022-04-06 13:56:33,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:33,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106344094] [2022-04-06 13:56:33,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106344094] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:33,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997410169] [2022-04-06 13:56:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:33,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:56:33,841 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) [2022-04-06 13:56:33,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 13:56:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:35,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 3646 conjuncts, 32 conjunts are in the unsatisfiable core [2022-04-06 13:56:35,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:56:35,585 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:56:35,585 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 [2022-04-06 13:56:35,935 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:35,935 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 [2022-04-06 13:56:36,024 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:56:36,025 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 [2022-04-06 13:56:36,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-04-06 13:56:36,351 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 [2022-04-06 13:56:36,365 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-06 13:56:36,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-04-06 13:56:36,430 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-04-06 13:56:36,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-04-06 13:56:36,505 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:56:36,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-04-06 13:56:36,583 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 [2022-04-06 13:56:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 3109 proven. 358 refuted. 0 times theorem prover too weak. 3891 trivial. 0 not checked. [2022-04-06 13:56:36,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:56:37,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-04-06 13:56:37,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-04-06 13:56:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 2922 proven. 0 refuted. 0 times theorem prover too weak. 4436 trivial. 0 not checked. [2022-04-06 13:56:38,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997410169] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:38,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:56:38,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 9] total 17 [2022-04-06 13:56:38,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834523048] [2022-04-06 13:56:38,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:56:38,672 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:56:38,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:38,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:56:38,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-04-06 13:56:38,673 INFO L87 Difference]: Start difference. First operand 17855 states and 26009 transitions. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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) [2022-04-06 13:56:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:56:39,141 INFO L93 Difference]: Finished difference Result 37791 states and 55158 transitions. [2022-04-06 13:56:39,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:56:39,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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 874 [2022-04-06 13:56:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:56:39,163 INFO L225 Difference]: With dead ends: 37791 [2022-04-06 13:56:39,164 INFO L226 Difference]: Without dead ends: 19964 [2022-04-06 13:56:39,180 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1765 GetRequests, 1749 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-04-06 13:56:39,181 INFO L913 BasicCegarLoop]: 323 mSDtfsCounter, 235 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:39,181 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 781 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 125 Unchecked, 0.1s Time] [2022-04-06 13:56:39,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19964 states. [2022-04-06 13:56:39,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19964 to 18962. [2022-04-06 13:56:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18962 states, 18957 states have (on average 1.4681647940074907) internal successors, (27832), 18957 states have internal predecessors, (27832), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18962 states to 18962 states and 27836 transitions. [2022-04-06 13:56:39,504 INFO L78 Accepts]: Start accepts. Automaton has 18962 states and 27836 transitions. Word has length 874 [2022-04-06 13:56:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:56:39,505 INFO L478 AbstractCegarLoop]: Abstraction has 18962 states and 27836 transitions. [2022-04-06 13:56:39,505 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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) [2022-04-06 13:56:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 18962 states and 27836 transitions. [2022-04-06 13:56:39,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-04-06 13:56:39,596 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:56:39,596 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:56:39,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 13:56:39,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2022-04-06 13:56:39,808 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:56:39,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:56:39,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1788450326, now seen corresponding path program 1 times [2022-04-06 13:56:39,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:56:39,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418164604] [2022-04-06 13:56:39,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:39,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:56:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:42,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:56:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 1986 proven. 4985 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-04-06 13:56:42,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:56:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418164604] [2022-04-06 13:56:42,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418164604] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:56:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396063029] [2022-04-06 13:56:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:56:42,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:56:42,838 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) [2022-04-06 13:56:42,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 13:56:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:56:44,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 3649 conjuncts, 144 conjunts are in the unsatisfiable core [2022-04-06 13:56:44,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:56:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:44,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 13:56:45,039 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-04-06 13:56:45,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 726494 treesize of output 154231 [2022-04-06 13:56:56,553 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-06 13:56:56,554 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-04-06 13:56:56,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-06 13:56:56,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-04-06 13:56:56,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975027816] [2022-04-06 13:56:56,554 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-06 13:56:56,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-04-06 13:56:56,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-04-06 13:56:56,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:56:56,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-04-06 13:56:56,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-04-06 13:56:56,556 INFO L87 Difference]: Start difference. First operand 18962 states and 27836 transitions. Second operand has 28 states, 28 states have (on average 23.142857142857142) internal successors, (648), 27 states have internal predecessors, (648), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:56:56,561 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-04-06 13:56:56,561 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-06 13:56:56,561 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-06 13:56:56,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-06 13:56:56,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:56:56,776 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:444) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:865) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:770) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:470) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 37 more [2022-04-06 13:56:56,779 INFO L158 Benchmark]: Toolchain (without parser) took 414478.25ms. Allocated memory was 174.1MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 113.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 415.1MB. Max. memory is 8.0GB. [2022-04-06 13:56:56,779 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 174.1MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 13:56:56,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.19ms. Allocated memory was 174.1MB in the beginning and 226.5MB in the end (delta: 52.4MB). Free memory was 113.2MB in the beginning and 177.1MB in the end (delta: -63.9MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-04-06 13:56:56,780 INFO L158 Benchmark]: Boogie Preprocessor took 111.02ms. Allocated memory is still 226.5MB. Free memory was 177.1MB in the beginning and 169.2MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-06 13:56:56,780 INFO L158 Benchmark]: RCFGBuilder took 1665.39ms. Allocated memory is still 226.5MB. Free memory was 169.2MB in the beginning and 187.2MB in the end (delta: -17.9MB). Peak memory consumption was 82.7MB. Max. memory is 8.0GB. [2022-04-06 13:56:56,780 INFO L158 Benchmark]: IcfgTransformer took 55.66ms. Allocated memory is still 226.5MB. Free memory was 187.2MB in the beginning and 180.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-04-06 13:56:56,780 INFO L158 Benchmark]: TraceAbstraction took 412157.80ms. Allocated memory was 226.5MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 180.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 428.9MB. Max. memory is 8.0GB. [2022-04-06 13:56:56,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 174.1MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 476.19ms. Allocated memory was 174.1MB in the beginning and 226.5MB in the end (delta: 52.4MB). Free memory was 113.2MB in the beginning and 177.1MB in the end (delta: -63.9MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.02ms. Allocated memory is still 226.5MB. Free memory was 177.1MB in the beginning and 169.2MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1665.39ms. Allocated memory is still 226.5MB. Free memory was 169.2MB in the beginning and 187.2MB in the end (delta: -17.9MB). Peak memory consumption was 82.7MB. Max. memory is 8.0GB. * IcfgTransformer took 55.66ms. Allocated memory is still 226.5MB. Free memory was 187.2MB in the beginning and 180.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 412157.80ms. Allocated memory was 226.5MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 180.4MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 428.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...