/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 00:39:23,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 00:39:23,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 00:39:23,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-24 00:39:23,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-24 00:39:23,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-24 00:39:23,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-24 00:39:23,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-24 00:39:23,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-24 00:39:23,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-24 00:39:23,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-24 00:39:23,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-24 00:39:23,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-24 00:39:23,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-24 00:39:23,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-24 00:39:23,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-24 00:39:23,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-24 00:39:23,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-24 00:39:23,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-24 00:39:23,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-24 00:39:23,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-24 00:39:23,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-24 00:39:23,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-24 00:39:23,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-24 00:39:23,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-24 00:39:23,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 00:39:23,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 00:39:23,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 00:39:23,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-02-24 00:39:23,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 00:39:23,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 00:39:23,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-24 00:39:23,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-24 00:39:23,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-24 00:39:23,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-24 00:39:23,859 INFO L138 SettingsManager]: * Use SBE=true [2022-02-24 00:39:23,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 00:39:23,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 00:39:23,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 00:39:23,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 00:39:23,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 00:39:23,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 00:39:23,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:39:23,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 00:39:23,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-24 00:39:23,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-24 00:39:23,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-24 00:39:23,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-24 00:39:23,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 00:39:23,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-02-24 00:39:23,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-24 00:39:23,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-24 00:39:23,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 00:39:24,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 00:39:24,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 00:39:24,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 00:39:24,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 00:39:24,046 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 00:39:24,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-02-24 00:39:24,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f0b984d/13916bf6f2c541bf95d9618f57bace8e/FLAGdd3767d5d [2022-02-24 00:39:24,530 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 00:39:24,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-02-24 00:39:24,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f0b984d/13916bf6f2c541bf95d9618f57bace8e/FLAGdd3767d5d [2022-02-24 00:39:24,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f0b984d/13916bf6f2c541bf95d9618f57bace8e [2022-02-24 00:39:24,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 00:39:24,573 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-24 00:39:24,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 00:39:24,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 00:39:24,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 00:39:24,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:39:24" (1/1) ... [2022-02-24 00:39:24,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4098f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:24, skipping insertion in model container [2022-02-24 00:39:24,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:39:24" (1/1) ... [2022-02-24 00:39:24,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 00:39:24,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 00:39:24,889 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.01.i.cil-1.c[72918,72931] [2022-02-24 00:39:24,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:39:24,908 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 00:39:25,018 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.01.i.cil-1.c[72918,72931] [2022-02-24 00:39:25,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 00:39:25,036 INFO L208 MainTranslator]: Completed translation [2022-02-24 00:39:25,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25 WrapperNode [2022-02-24 00:39:25,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 00:39:25,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 00:39:25,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 00:39:25,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 00:39:25,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 00:39:25,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 00:39:25,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 00:39:25,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 00:39:25,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (1/1) ... [2022-02-24 00:39:25,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 00:39:25,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:39:25,180 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) [2022-02-24 00:39:25,186 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 [2022-02-24 00:39:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 00:39:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 00:39:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 00:39:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-24 00:39:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-24 00:39:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 00:39:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-24 00:39:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-24 00:39:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-24 00:39:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-24 00:39:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 00:39:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-24 00:39:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 00:39:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 00:39:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 00:39:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-24 00:39:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-24 00:39:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-24 00:39:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-24 00:39:25,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 00:39:25,358 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 00:39:25,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 00:39:27,609 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-24 00:39:28,019 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-24 00:39:28,019 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-24 00:39:28,029 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 00:39:28,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 00:39:28,035 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-24 00:39:28,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:39:28 BoogieIcfgContainer [2022-02-24 00:39:28,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 00:39:28,038 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-24 00:39:28,038 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-24 00:39:28,038 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-24 00:39:28,040 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:39:28" (1/1) ... [2022-02-24 00:39:28,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:39:28 BasicIcfg [2022-02-24 00:39:28,112 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-24 00:39:28,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 00:39:28,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 00:39:28,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 00:39:28,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:39:24" (1/4) ... [2022-02-24 00:39:28,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e66397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:39:28, skipping insertion in model container [2022-02-24 00:39:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:39:25" (2/4) ... [2022-02-24 00:39:28,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e66397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:39:28, skipping insertion in model container [2022-02-24 00:39:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:39:28" (3/4) ... [2022-02-24 00:39:28,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e66397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:39:28, skipping insertion in model container [2022-02-24 00:39:28,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 24.02 12:39:28" (4/4) ... [2022-02-24 00:39:28,117 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.cqvasr [2022-02-24 00:39:28,120 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-24 00:39:28,121 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 00:39:28,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 00:39:28,163 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-24 00:39:28,164 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 00:39:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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) [2022-02-24 00:39:28,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-24 00:39:28,195 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:28,196 INFO L514 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, 1] [2022-02-24 00:39:28,197 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:28,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:28,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1394707426, now seen corresponding path program 1 times [2022-02-24 00:39:28,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:28,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120213639] [2022-02-24 00:39:28,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:28,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:28,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:28,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:28,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120213639] [2022-02-24 00:39:28,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120213639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:28,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:28,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:28,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992078361] [2022-02-24 00:39:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:28,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:28,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:28,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:28,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:28,660 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:31,462 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 [] [2022-02-24 00:39:33,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:35,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:36,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:36,034 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-02-24 00:39:36,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:36,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-02-24 00:39:36,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:36,051 INFO L225 Difference]: With dead ends: 328 [2022-02-24 00:39:36,051 INFO L226 Difference]: Without dead ends: 167 [2022-02-24 00:39:36,053 INFO L932 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 [2022-02-24 00:39:36,055 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:36,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-02-24 00:39:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-02-24 00:39:36,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-02-24 00:39:36,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-02-24 00:39:36,083 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 53 [2022-02-24 00:39:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:36,084 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-02-24 00:39:36,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-02-24 00:39:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 00:39:36,085 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:36,086 INFO L514 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, 1] [2022-02-24 00:39:36,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 00:39:36,086 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:36,086 INFO L85 PathProgramCache]: Analyzing trace with hash 129396056, now seen corresponding path program 1 times [2022-02-24 00:39:36,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:36,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283715105] [2022-02-24 00:39:36,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:36,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:36,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:36,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283715105] [2022-02-24 00:39:36,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283715105] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:36,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:36,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:36,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979002394] [2022-02-24 00:39:36,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:36,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:36,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:36,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:36,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:36,247 INFO L87 Difference]: Start difference. First operand 150 states and 227 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) [2022-02-24 00:39:38,260 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 [] [2022-02-24 00:39:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:38,642 INFO L93 Difference]: Finished difference Result 291 states and 437 transitions. [2022-02-24 00:39:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:38,642 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 [2022-02-24 00:39:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:38,643 INFO L225 Difference]: With dead ends: 291 [2022-02-24 00:39:38,644 INFO L226 Difference]: Without dead ends: 167 [2022-02-24 00:39:38,644 INFO L932 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 [2022-02-24 00:39:38,645 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:38,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:39:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-02-24 00:39:38,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-02-24 00:39:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5310344827586206) internal successors, (222), 145 states have internal predecessors, (222), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-02-24 00:39:38,652 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 66 [2022-02-24 00:39:38,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:38,652 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-02-24 00:39:38,652 INFO L471 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) [2022-02-24 00:39:38,652 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-02-24 00:39:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:39:38,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:38,654 INFO L514 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, 1] [2022-02-24 00:39:38,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 00:39:38,654 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:38,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1322799816, now seen corresponding path program 1 times [2022-02-24 00:39:38,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:38,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403535974] [2022-02-24 00:39:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:38,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:38,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403535974] [2022-02-24 00:39:38,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403535974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:38,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:38,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:38,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624879718] [2022-02-24 00:39:38,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:38,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:38,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:38,802 INFO L87 Difference]: Start difference. First operand 150 states and 226 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) [2022-02-24 00:39:40,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:42,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:44,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:39:46,186 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 [] [2022-02-24 00:39:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:46,579 INFO L93 Difference]: Finished difference Result 289 states and 434 transitions. [2022-02-24 00:39:46,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:46,580 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 [2022-02-24 00:39:46,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:46,582 INFO L225 Difference]: With dead ends: 289 [2022-02-24 00:39:46,582 INFO L226 Difference]: Without dead ends: 165 [2022-02-24 00:39:46,582 INFO L932 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 [2022-02-24 00:39:46,586 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:46,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 350 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 00:39:46,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-24 00:39:46,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 150. [2022-02-24 00:39:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5241379310344827) internal successors, (221), 145 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 225 transitions. [2022-02-24 00:39:46,599 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 225 transitions. Word has length 67 [2022-02-24 00:39:46,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:46,600 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 225 transitions. [2022-02-24 00:39:46,600 INFO L471 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) [2022-02-24 00:39:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 225 transitions. [2022-02-24 00:39:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-24 00:39:46,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:46,601 INFO L514 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, 1] [2022-02-24 00:39:46,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 00:39:46,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:46,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1617230023, now seen corresponding path program 1 times [2022-02-24 00:39:46,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:46,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821107477] [2022-02-24 00:39:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:46,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:46,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:46,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:46,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821107477] [2022-02-24 00:39:46,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821107477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:46,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:46,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:46,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424169485] [2022-02-24 00:39:46,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:46,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:46,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:46,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:46,779 INFO L87 Difference]: Start difference. First operand 150 states and 225 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) [2022-02-24 00:39:48,790 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 [] [2022-02-24 00:39:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:49,116 INFO L93 Difference]: Finished difference Result 288 states and 432 transitions. [2022-02-24 00:39:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:49,117 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 [2022-02-24 00:39:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:49,118 INFO L225 Difference]: With dead ends: 288 [2022-02-24 00:39:49,118 INFO L226 Difference]: Without dead ends: 164 [2022-02-24 00:39:49,118 INFO L932 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 [2022-02-24 00:39:49,119 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:49,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:49,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-02-24 00:39:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 150. [2022-02-24 00:39:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 145 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 224 transitions. [2022-02-24 00:39:49,124 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 224 transitions. Word has length 67 [2022-02-24 00:39:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:49,125 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 224 transitions. [2022-02-24 00:39:49,125 INFO L471 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) [2022-02-24 00:39:49,125 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 224 transitions. [2022-02-24 00:39:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:39:49,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:49,126 INFO L514 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, 1, 1] [2022-02-24 00:39:49,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 00:39:49,127 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:49,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1990338884, now seen corresponding path program 1 times [2022-02-24 00:39:49,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:49,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005501452] [2022-02-24 00:39:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:49,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:49,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005501452] [2022-02-24 00:39:49,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005501452] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:49,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:49,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:49,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053276022] [2022-02-24 00:39:49,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:49,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:49,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:49,218 INFO L87 Difference]: Start difference. First operand 150 states and 224 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) [2022-02-24 00:39:51,225 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 [] [2022-02-24 00:39:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:51,580 INFO L93 Difference]: Finished difference Result 287 states and 430 transitions. [2022-02-24 00:39:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:51,580 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 [2022-02-24 00:39:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:51,581 INFO L225 Difference]: With dead ends: 287 [2022-02-24 00:39:51,581 INFO L226 Difference]: Without dead ends: 163 [2022-02-24 00:39:51,582 INFO L932 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 [2022-02-24 00:39:51,582 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:51,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:51,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-02-24 00:39:51,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2022-02-24 00:39:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5103448275862068) internal successors, (219), 145 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 223 transitions. [2022-02-24 00:39:51,587 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 223 transitions. Word has length 68 [2022-02-24 00:39:51,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:51,587 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 223 transitions. [2022-02-24 00:39:51,588 INFO L471 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) [2022-02-24 00:39:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 223 transitions. [2022-02-24 00:39:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-24 00:39:51,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:51,589 INFO L514 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, 1, 1] [2022-02-24 00:39:51,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 00:39:51,589 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:51,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash -87978276, now seen corresponding path program 1 times [2022-02-24 00:39:51,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:51,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984136375] [2022-02-24 00:39:51,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:51,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:51,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:51,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984136375] [2022-02-24 00:39:51,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984136375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:51,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:51,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:51,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105553538] [2022-02-24 00:39:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:51,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:51,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:51,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:51,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:51,733 INFO L87 Difference]: Start difference. First operand 150 states and 223 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) [2022-02-24 00:39:53,742 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 [] [2022-02-24 00:39:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:54,239 INFO L93 Difference]: Finished difference Result 390 states and 591 transitions. [2022-02-24 00:39:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:54,239 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 [2022-02-24 00:39:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:54,240 INFO L225 Difference]: With dead ends: 390 [2022-02-24 00:39:54,241 INFO L226 Difference]: Without dead ends: 266 [2022-02-24 00:39:54,241 INFO L932 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 [2022-02-24 00:39:54,241 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 144 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:54,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:39:54,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-24 00:39:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 162. [2022-02-24 00:39:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5031847133757963) internal successors, (236), 157 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:54,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 240 transitions. [2022-02-24 00:39:54,247 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 240 transitions. Word has length 68 [2022-02-24 00:39:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:54,247 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 240 transitions. [2022-02-24 00:39:54,248 INFO L471 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) [2022-02-24 00:39:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 240 transitions. [2022-02-24 00:39:54,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 00:39:54,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:54,248 INFO L514 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, 1, 1] [2022-02-24 00:39:54,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 00:39:54,249 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:54,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:54,249 INFO L85 PathProgramCache]: Analyzing trace with hash 154086156, now seen corresponding path program 1 times [2022-02-24 00:39:54,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:54,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239544277] [2022-02-24 00:39:54,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:54,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:54,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:54,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:54,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239544277] [2022-02-24 00:39:54,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239544277] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:54,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:54,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:54,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090568707] [2022-02-24 00:39:54,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:54,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:54,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:54,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:54,353 INFO L87 Difference]: Start difference. First operand 162 states and 240 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) [2022-02-24 00:39:56,363 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 [] [2022-02-24 00:39:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:56,857 INFO L93 Difference]: Finished difference Result 402 states and 607 transitions. [2022-02-24 00:39:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:56,871 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 [2022-02-24 00:39:56,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:56,873 INFO L225 Difference]: With dead ends: 402 [2022-02-24 00:39:56,873 INFO L226 Difference]: Without dead ends: 266 [2022-02-24 00:39:56,873 INFO L932 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 [2022-02-24 00:39:56,874 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 142 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:56,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:39:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-24 00:39:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 163. [2022-02-24 00:39:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4936708860759493) internal successors, (236), 158 states have internal predecessors, (236), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 240 transitions. [2022-02-24 00:39:56,880 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 240 transitions. Word has length 69 [2022-02-24 00:39:56,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:56,880 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 240 transitions. [2022-02-24 00:39:56,880 INFO L471 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) [2022-02-24 00:39:56,880 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 240 transitions. [2022-02-24 00:39:56,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-24 00:39:56,881 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:56,881 INFO L514 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, 1, 1] [2022-02-24 00:39:56,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 00:39:56,881 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:56,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:56,882 INFO L85 PathProgramCache]: Analyzing trace with hash -694055968, now seen corresponding path program 1 times [2022-02-24 00:39:56,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:56,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574930380] [2022-02-24 00:39:56,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:56,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:56,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:56,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:56,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574930380] [2022-02-24 00:39:56,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574930380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:56,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:56,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:56,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893903386] [2022-02-24 00:39:56,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:56,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:56,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:56,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:56,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:56,961 INFO L87 Difference]: Start difference. First operand 163 states and 240 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) [2022-02-24 00:39:58,972 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 [] [2022-02-24 00:39:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:39:59,307 INFO L93 Difference]: Finished difference Result 313 states and 465 transitions. [2022-02-24 00:39:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:39:59,308 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 [2022-02-24 00:39:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:39:59,309 INFO L225 Difference]: With dead ends: 313 [2022-02-24 00:39:59,309 INFO L226 Difference]: Without dead ends: 176 [2022-02-24 00:39:59,310 INFO L932 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 [2022-02-24 00:39:59,310 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:39:59,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:39:59,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-02-24 00:39:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 163. [2022-02-24 00:39:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4873417721518987) internal successors, (235), 158 states have internal predecessors, (235), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:39:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 239 transitions. [2022-02-24 00:39:59,314 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 239 transitions. Word has length 70 [2022-02-24 00:39:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:39:59,314 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 239 transitions. [2022-02-24 00:39:59,314 INFO L471 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) [2022-02-24 00:39:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2022-02-24 00:39:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-24 00:39:59,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:39:59,315 INFO L514 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] [2022-02-24 00:39:59,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 00:39:59,315 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:39:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:39:59,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2057309094, now seen corresponding path program 1 times [2022-02-24 00:39:59,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:39:59,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205941804] [2022-02-24 00:39:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:39:59,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:39:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:39:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:39:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:39:59,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:39:59,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205941804] [2022-02-24 00:39:59,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205941804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:39:59,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:39:59,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:39:59,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863166725] [2022-02-24 00:39:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:39:59,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:39:59,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:39:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:39:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:39:59,418 INFO L87 Difference]: Start difference. First operand 163 states and 239 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) [2022-02-24 00:40:01,427 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 [] [2022-02-24 00:40:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:01,815 INFO L93 Difference]: Finished difference Result 343 states and 511 transitions. [2022-02-24 00:40:01,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:01,815 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 [2022-02-24 00:40:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:01,817 INFO L225 Difference]: With dead ends: 343 [2022-02-24 00:40:01,817 INFO L226 Difference]: Without dead ends: 206 [2022-02-24 00:40:01,817 INFO L932 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 [2022-02-24 00:40:01,818 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:01,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:01,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-24 00:40:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 185. [2022-02-24 00:40:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.5055555555555555) internal successors, (271), 180 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 275 transitions. [2022-02-24 00:40:01,833 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 275 transitions. Word has length 70 [2022-02-24 00:40:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:01,833 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 275 transitions. [2022-02-24 00:40:01,833 INFO L471 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) [2022-02-24 00:40:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 275 transitions. [2022-02-24 00:40:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-24 00:40:01,834 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:01,834 INFO L514 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, 1, 1] [2022-02-24 00:40:01,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 00:40:01,834 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:01,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2112053553, now seen corresponding path program 1 times [2022-02-24 00:40:01,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:01,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470413867] [2022-02-24 00:40:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:01,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:01,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470413867] [2022-02-24 00:40:01,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470413867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:01,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:01,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:01,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418454921] [2022-02-24 00:40:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:01,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:01,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:01,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:01,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:01,915 INFO L87 Difference]: Start difference. First operand 185 states and 275 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:03,927 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 [] [2022-02-24 00:40:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:04,219 INFO L93 Difference]: Finished difference Result 347 states and 523 transitions. [2022-02-24 00:40:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:04,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-02-24 00:40:04,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:04,221 INFO L225 Difference]: With dead ends: 347 [2022-02-24 00:40:04,221 INFO L226 Difference]: Without dead ends: 188 [2022-02-24 00:40:04,221 INFO L932 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 [2022-02-24 00:40:04,222 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:04,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 484 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-02-24 00:40:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 185. [2022-02-24 00:40:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.5) internal successors, (270), 180 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 274 transitions. [2022-02-24 00:40:04,227 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 274 transitions. Word has length 71 [2022-02-24 00:40:04,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:04,227 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 274 transitions. [2022-02-24 00:40:04,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:04,228 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 274 transitions. [2022-02-24 00:40:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-24 00:40:04,228 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:04,228 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:04,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 00:40:04,229 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:04,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1909238804, now seen corresponding path program 1 times [2022-02-24 00:40:04,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:04,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185004534] [2022-02-24 00:40:04,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:04,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:04,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:04,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:04,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185004534] [2022-02-24 00:40:04,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185004534] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:04,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:04,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:04,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036870942] [2022-02-24 00:40:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:04,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:04,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:04,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:04,324 INFO L87 Difference]: Start difference. First operand 185 states and 274 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:06,331 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 [] [2022-02-24 00:40:06,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:06,699 INFO L93 Difference]: Finished difference Result 365 states and 545 transitions. [2022-02-24 00:40:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:06,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-02-24 00:40:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:06,701 INFO L225 Difference]: With dead ends: 365 [2022-02-24 00:40:06,701 INFO L226 Difference]: Without dead ends: 206 [2022-02-24 00:40:06,701 INFO L932 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 [2022-02-24 00:40:06,702 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 37 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:06,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 482 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-02-24 00:40:06,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 185. [2022-02-24 00:40:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 180 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:06,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 273 transitions. [2022-02-24 00:40:06,706 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 273 transitions. Word has length 83 [2022-02-24 00:40:06,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:06,706 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 273 transitions. [2022-02-24 00:40:06,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:06,707 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 273 transitions. [2022-02-24 00:40:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:40:06,707 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:06,707 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:06,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 00:40:06,707 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:06,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:06,708 INFO L85 PathProgramCache]: Analyzing trace with hash 663350156, now seen corresponding path program 1 times [2022-02-24 00:40:06,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:06,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009831158] [2022-02-24 00:40:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:06,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:06,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:06,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:06,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009831158] [2022-02-24 00:40:06,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009831158] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:06,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:06,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:06,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641753089] [2022-02-24 00:40:06,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:06,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:06,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:06,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:06,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:06,827 INFO L87 Difference]: Start difference. First operand 185 states and 273 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:08,834 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 [] [2022-02-24 00:40:09,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:09,287 INFO L93 Difference]: Finished difference Result 447 states and 674 transitions. [2022-02-24 00:40:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:09,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:40:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:09,288 INFO L225 Difference]: With dead ends: 447 [2022-02-24 00:40:09,288 INFO L226 Difference]: Without dead ends: 288 [2022-02-24 00:40:09,289 INFO L932 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 [2022-02-24 00:40:09,289 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 138 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:09,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:09,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-02-24 00:40:09,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 189. [2022-02-24 00:40:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.4945652173913044) internal successors, (275), 184 states have internal predecessors, (275), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 279 transitions. [2022-02-24 00:40:09,297 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 279 transitions. Word has length 84 [2022-02-24 00:40:09,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:09,298 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 279 transitions. [2022-02-24 00:40:09,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:09,298 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 279 transitions. [2022-02-24 00:40:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 00:40:09,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:09,299 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:09,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 00:40:09,300 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:09,300 INFO L85 PathProgramCache]: Analyzing trace with hash 957780363, now seen corresponding path program 1 times [2022-02-24 00:40:09,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:09,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037948484] [2022-02-24 00:40:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:09,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:09,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037948484] [2022-02-24 00:40:09,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037948484] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:09,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:09,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:09,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036779998] [2022-02-24 00:40:09,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:09,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:09,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:09,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:09,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:09,423 INFO L87 Difference]: Start difference. First operand 189 states and 279 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:11,431 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 [] [2022-02-24 00:40:11,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:11,782 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2022-02-24 00:40:11,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:11,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-24 00:40:11,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:11,784 INFO L225 Difference]: With dead ends: 370 [2022-02-24 00:40:11,784 INFO L226 Difference]: Without dead ends: 207 [2022-02-24 00:40:11,784 INFO L932 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 [2022-02-24 00:40:11,785 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 33 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:11,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-02-24 00:40:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2022-02-24 00:40:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.4891304347826086) internal successors, (274), 184 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 278 transitions. [2022-02-24 00:40:11,790 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 278 transitions. Word has length 84 [2022-02-24 00:40:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:11,790 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 278 transitions. [2022-02-24 00:40:11,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 278 transitions. [2022-02-24 00:40:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-24 00:40:11,791 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:11,791 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:11,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 00:40:11,791 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash -958441864, now seen corresponding path program 1 times [2022-02-24 00:40:11,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:11,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917726920] [2022-02-24 00:40:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:11,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:11,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-24 00:40:11,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:11,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917726920] [2022-02-24 00:40:11,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917726920] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:11,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:11,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:11,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356402767] [2022-02-24 00:40:11,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:11,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:11,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:11,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:11,914 INFO L87 Difference]: Start difference. First operand 189 states and 278 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:13,922 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 [] [2022-02-24 00:40:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:14,296 INFO L93 Difference]: Finished difference Result 381 states and 567 transitions. [2022-02-24 00:40:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:14,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-24 00:40:14,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:14,297 INFO L225 Difference]: With dead ends: 381 [2022-02-24 00:40:14,297 INFO L226 Difference]: Without dead ends: 218 [2022-02-24 00:40:14,298 INFO L932 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 [2022-02-24 00:40:14,298 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 20 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:14,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 549 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-24 00:40:14,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 205. [2022-02-24 00:40:14,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.49) internal successors, (298), 200 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) [2022-02-24 00:40:14,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 302 transitions. [2022-02-24 00:40:14,302 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 302 transitions. Word has length 85 [2022-02-24 00:40:14,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:14,303 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 302 transitions. [2022-02-24 00:40:14,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:14,303 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 302 transitions. [2022-02-24 00:40:14,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-24 00:40:14,303 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:14,303 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:14,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 00:40:14,304 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:14,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash -342421357, now seen corresponding path program 1 times [2022-02-24 00:40:14,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:14,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850684841] [2022-02-24 00:40:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:14,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:14,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-24 00:40:14,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:14,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850684841] [2022-02-24 00:40:14,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850684841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:14,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:14,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:40:14,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207917830] [2022-02-24 00:40:14,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:14,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:40:14,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:14,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:40:14,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:40:14,404 INFO L87 Difference]: Start difference. First operand 205 states and 302 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:16,412 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 [] [2022-02-24 00:40:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:16,768 INFO L93 Difference]: Finished difference Result 393 states and 586 transitions. [2022-02-24 00:40:16,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 00:40:16,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-02-24 00:40:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:16,770 INFO L225 Difference]: With dead ends: 393 [2022-02-24 00:40:16,770 INFO L226 Difference]: Without dead ends: 214 [2022-02-24 00:40:16,770 INFO L932 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 [2022-02-24 00:40:16,771 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:16,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:16,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-24 00:40:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-02-24 00:40:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4784688995215312) internal successors, (309), 209 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 313 transitions. [2022-02-24 00:40:16,777 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 313 transitions. Word has length 86 [2022-02-24 00:40:16,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:16,777 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 313 transitions. [2022-02-24 00:40:16,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 313 transitions. [2022-02-24 00:40:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-24 00:40:16,778 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:16,778 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:16,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 00:40:16,778 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1426792175, now seen corresponding path program 1 times [2022-02-24 00:40:16,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:16,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67473907] [2022-02-24 00:40:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:16,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:16,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67473907] [2022-02-24 00:40:16,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67473907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:16,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:16,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:16,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96024791] [2022-02-24 00:40:16,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:16,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:16,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:16,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:16,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:16,884 INFO L87 Difference]: Start difference. First operand 214 states and 313 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) [2022-02-24 00:40:18,893 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 [] [2022-02-24 00:40:19,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:19,424 INFO L93 Difference]: Finished difference Result 510 states and 757 transitions. [2022-02-24 00:40:19,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:19,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-02-24 00:40:19,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:19,425 INFO L225 Difference]: With dead ends: 510 [2022-02-24 00:40:19,425 INFO L226 Difference]: Without dead ends: 322 [2022-02-24 00:40:19,426 INFO L932 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 [2022-02-24 00:40:19,426 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 140 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:19,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:40:19,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-02-24 00:40:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 214. [2022-02-24 00:40:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4641148325358853) internal successors, (306), 209 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 310 transitions. [2022-02-24 00:40:19,432 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 310 transitions. Word has length 88 [2022-02-24 00:40:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:19,432 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 310 transitions. [2022-02-24 00:40:19,432 INFO L471 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) [2022-02-24 00:40:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 310 transitions. [2022-02-24 00:40:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-24 00:40:19,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:19,433 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:19,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 00:40:19,433 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:19,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash 889591000, now seen corresponding path program 1 times [2022-02-24 00:40:19,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:19,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126396779] [2022-02-24 00:40:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 00:40:19,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:19,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126396779] [2022-02-24 00:40:19,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126396779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:19,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:19,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:19,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676861324] [2022-02-24 00:40:19,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:19,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:19,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:19,522 INFO L87 Difference]: Start difference. First operand 214 states and 310 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) [2022-02-24 00:40:21,538 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 [] [2022-02-24 00:40:21,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:21,956 INFO L93 Difference]: Finished difference Result 500 states and 738 transitions. [2022-02-24 00:40:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:21,956 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 89 [2022-02-24 00:40:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:21,958 INFO L225 Difference]: With dead ends: 500 [2022-02-24 00:40:21,958 INFO L226 Difference]: Without dead ends: 312 [2022-02-24 00:40:21,958 INFO L932 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 [2022-02-24 00:40:21,958 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 137 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:21,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 323 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:21,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-02-24 00:40:21,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 214. [2022-02-24 00:40:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4497607655502391) internal successors, (303), 209 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) [2022-02-24 00:40:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 307 transitions. [2022-02-24 00:40:21,963 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 307 transitions. Word has length 89 [2022-02-24 00:40:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:21,963 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 307 transitions. [2022-02-24 00:40:21,963 INFO L471 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) [2022-02-24 00:40:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 307 transitions. [2022-02-24 00:40:21,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-24 00:40:21,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:21,964 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 00:40:21,964 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 846482982, now seen corresponding path program 1 times [2022-02-24 00:40:21,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:21,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501362550] [2022-02-24 00:40:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:21,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:22,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:22,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501362550] [2022-02-24 00:40:22,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501362550] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:22,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:22,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:22,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567967077] [2022-02-24 00:40:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:22,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:22,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:22,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:22,090 INFO L87 Difference]: Start difference. First operand 214 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:24,098 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 [] [2022-02-24 00:40:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:24,552 INFO L93 Difference]: Finished difference Result 517 states and 756 transitions. [2022-02-24 00:40:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:24,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-02-24 00:40:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:24,554 INFO L225 Difference]: With dead ends: 517 [2022-02-24 00:40:24,554 INFO L226 Difference]: Without dead ends: 329 [2022-02-24 00:40:24,554 INFO L932 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 [2022-02-24 00:40:24,555 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 107 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:24,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 324 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:24,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-02-24 00:40:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 257. [2022-02-24 00:40:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5) internal successors, (378), 252 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 382 transitions. [2022-02-24 00:40:24,562 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 382 transitions. Word has length 92 [2022-02-24 00:40:24,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:24,563 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 382 transitions. [2022-02-24 00:40:24,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 382 transitions. [2022-02-24 00:40:24,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-24 00:40:24,563 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:24,564 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:24,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 00:40:24,564 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:24,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash 500536592, now seen corresponding path program 1 times [2022-02-24 00:40:24,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:24,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890488808] [2022-02-24 00:40:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:24,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:24,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:24,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890488808] [2022-02-24 00:40:24,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890488808] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:24,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:24,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:24,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377143543] [2022-02-24 00:40:24,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:24,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:24,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:24,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:24,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:24,673 INFO L87 Difference]: Start difference. First operand 257 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:26,681 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 [] [2022-02-24 00:40:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:27,135 INFO L93 Difference]: Finished difference Result 584 states and 877 transitions. [2022-02-24 00:40:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:27,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-02-24 00:40:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:27,137 INFO L225 Difference]: With dead ends: 584 [2022-02-24 00:40:27,137 INFO L226 Difference]: Without dead ends: 353 [2022-02-24 00:40:27,137 INFO L932 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 [2022-02-24 00:40:27,138 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 73 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:27,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 474 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-24 00:40:27,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 300. [2022-02-24 00:40:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.528813559322034) internal successors, (451), 295 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) [2022-02-24 00:40:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 455 transitions. [2022-02-24 00:40:27,145 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 455 transitions. Word has length 93 [2022-02-24 00:40:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:27,145 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 455 transitions. [2022-02-24 00:40:27,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 455 transitions. [2022-02-24 00:40:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-24 00:40:27,146 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:27,146 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:27,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 00:40:27,146 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:27,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1200203887, now seen corresponding path program 1 times [2022-02-24 00:40:27,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:27,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691264385] [2022-02-24 00:40:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:27,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:27,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691264385] [2022-02-24 00:40:27,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691264385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:27,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:27,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:27,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921015674] [2022-02-24 00:40:27,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:27,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:27,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:27,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:27,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:27,243 INFO L87 Difference]: Start difference. First operand 300 states and 455 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:28,776 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 [] [2022-02-24 00:40:30,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:32,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:34,850 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 [] [2022-02-24 00:40:35,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:35,283 INFO L93 Difference]: Finished difference Result 622 states and 948 transitions. [2022-02-24 00:40:35,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:35,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-02-24 00:40:35,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:35,284 INFO L225 Difference]: With dead ends: 622 [2022-02-24 00:40:35,284 INFO L226 Difference]: Without dead ends: 348 [2022-02-24 00:40:35,285 INFO L932 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 [2022-02-24 00:40:35,285 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 34 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:35,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 578 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 456 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-24 00:40:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-02-24 00:40:35,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 324. [2022-02-24 00:40:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5297805642633229) internal successors, (488), 319 states have internal predecessors, (488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 492 transitions. [2022-02-24 00:40:35,291 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 492 transitions. Word has length 93 [2022-02-24 00:40:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:35,291 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 492 transitions. [2022-02-24 00:40:35,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 492 transitions. [2022-02-24 00:40:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-02-24 00:40:35,292 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:35,292 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:40:35,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 00:40:35,292 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:35,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1580984372, now seen corresponding path program 1 times [2022-02-24 00:40:35,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:35,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560458696] [2022-02-24 00:40:35,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:35,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:35,380 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:35,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:35,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560458696] [2022-02-24 00:40:35,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560458696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:35,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:35,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:35,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815617524] [2022-02-24 00:40:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:35,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:35,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:35,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:35,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:35,382 INFO L87 Difference]: Start difference. First operand 324 states and 492 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) [2022-02-24 00:40:36,667 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 [] [2022-02-24 00:40:38,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:40,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:42,740 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 [] [2022-02-24 00:40:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:43,176 INFO L93 Difference]: Finished difference Result 710 states and 1090 transitions. [2022-02-24 00:40:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:43,177 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 99 [2022-02-24 00:40:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:43,178 INFO L225 Difference]: With dead ends: 710 [2022-02-24 00:40:43,178 INFO L226 Difference]: Without dead ends: 412 [2022-02-24 00:40:43,179 INFO L932 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 [2022-02-24 00:40:43,179 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 134 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:43,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 339 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 452 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 00:40:43,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-02-24 00:40:43,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 324. [2022-02-24 00:40:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5109717868338557) internal successors, (482), 319 states have internal predecessors, (482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 486 transitions. [2022-02-24 00:40:43,185 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 486 transitions. Word has length 99 [2022-02-24 00:40:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:43,185 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 486 transitions. [2022-02-24 00:40:43,185 INFO L471 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) [2022-02-24 00:40:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 486 transitions. [2022-02-24 00:40:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-24 00:40:43,186 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:43,186 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:40:43,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 00:40:43,187 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:43,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1116285086, now seen corresponding path program 1 times [2022-02-24 00:40:43,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:43,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242969303] [2022-02-24 00:40:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:43,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:43,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:43,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242969303] [2022-02-24 00:40:43,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242969303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:43,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:43,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:43,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447210489] [2022-02-24 00:40:43,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:43,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:43,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:43,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:43,281 INFO L87 Difference]: Start difference. First operand 324 states and 486 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:45,289 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 [] [2022-02-24 00:40:45,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:45,667 INFO L93 Difference]: Finished difference Result 663 states and 997 transitions. [2022-02-24 00:40:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:45,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-02-24 00:40:45,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:45,669 INFO L225 Difference]: With dead ends: 663 [2022-02-24 00:40:45,669 INFO L226 Difference]: Without dead ends: 365 [2022-02-24 00:40:45,670 INFO L932 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 [2022-02-24 00:40:45,670 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 90 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:45,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 460 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-02-24 00:40:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 324. [2022-02-24 00:40:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5078369905956113) internal successors, (481), 319 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 485 transitions. [2022-02-24 00:40:45,676 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 485 transitions. Word has length 106 [2022-02-24 00:40:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:45,676 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 485 transitions. [2022-02-24 00:40:45,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:45,677 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 485 transitions. [2022-02-24 00:40:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-24 00:40:45,677 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:45,677 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:40:45,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 00:40:45,678 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:45,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1248063105, now seen corresponding path program 1 times [2022-02-24 00:40:45,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:45,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339975130] [2022-02-24 00:40:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:45,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:45,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:45,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339975130] [2022-02-24 00:40:45,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339975130] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:45,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:45,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:45,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855225651] [2022-02-24 00:40:45,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:45,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:45,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:45,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:45,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:45,794 INFO L87 Difference]: Start difference. First operand 324 states and 485 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:48,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:50,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:40:52,405 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 [] [2022-02-24 00:40:52,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:52,752 INFO L93 Difference]: Finished difference Result 634 states and 956 transitions. [2022-02-24 00:40:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:52,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2022-02-24 00:40:52,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:52,753 INFO L225 Difference]: With dead ends: 634 [2022-02-24 00:40:52,753 INFO L226 Difference]: Without dead ends: 336 [2022-02-24 00:40:52,754 INFO L932 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 [2022-02-24 00:40:52,754 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 34 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:52,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 566 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 418 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 00:40:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-02-24 00:40:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 324. [2022-02-24 00:40:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5047021943573669) internal successors, (480), 319 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 484 transitions. [2022-02-24 00:40:52,760 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 484 transitions. Word has length 106 [2022-02-24 00:40:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:52,760 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 484 transitions. [2022-02-24 00:40:52,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 484 transitions. [2022-02-24 00:40:52,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-02-24 00:40:52,761 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:52,761 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:40:52,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 00:40:52,761 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:52,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:52,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1967795147, now seen corresponding path program 1 times [2022-02-24 00:40:52,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:52,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393337580] [2022-02-24 00:40:52,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:52,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:52,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:52,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393337580] [2022-02-24 00:40:52,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393337580] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:52,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:52,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:52,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812786956] [2022-02-24 00:40:52,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:52,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:52,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:52,845 INFO L87 Difference]: Start difference. First operand 324 states and 484 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:54,853 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 [] [2022-02-24 00:40:55,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:55,250 INFO L93 Difference]: Finished difference Result 662 states and 992 transitions. [2022-02-24 00:40:55,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:55,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-02-24 00:40:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:55,251 INFO L225 Difference]: With dead ends: 662 [2022-02-24 00:40:55,251 INFO L226 Difference]: Without dead ends: 364 [2022-02-24 00:40:55,252 INFO L932 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 [2022-02-24 00:40:55,252 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 87 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:55,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 462 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:40:55,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-24 00:40:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 324. [2022-02-24 00:40:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.5015673981191222) internal successors, (479), 319 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 483 transitions. [2022-02-24 00:40:55,258 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 483 transitions. Word has length 107 [2022-02-24 00:40:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:55,258 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 483 transitions. [2022-02-24 00:40:55,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 483 transitions. [2022-02-24 00:40:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-02-24 00:40:55,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:55,259 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-24 00:40:55,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 00:40:55,259 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:55,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:55,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2046822260, now seen corresponding path program 1 times [2022-02-24 00:40:55,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:55,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305246580] [2022-02-24 00:40:55,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:55,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:55,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:55,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305246580] [2022-02-24 00:40:55,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305246580] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:55,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:55,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:55,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557829201] [2022-02-24 00:40:55,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:55,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:55,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:55,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:55,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:55,364 INFO L87 Difference]: Start difference. First operand 324 states and 483 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:57,371 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 [] [2022-02-24 00:40:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:40:57,728 INFO L93 Difference]: Finished difference Result 633 states and 951 transitions. [2022-02-24 00:40:57,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:40:57,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2022-02-24 00:40:57,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:40:57,730 INFO L225 Difference]: With dead ends: 633 [2022-02-24 00:40:57,730 INFO L226 Difference]: Without dead ends: 335 [2022-02-24 00:40:57,731 INFO L932 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 [2022-02-24 00:40:57,731 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 31 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:40:57,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 564 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 412 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:40:57,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-02-24 00:40:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 324. [2022-02-24 00:40:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.4984326018808778) internal successors, (478), 319 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 482 transitions. [2022-02-24 00:40:57,753 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 482 transitions. Word has length 107 [2022-02-24 00:40:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:40:57,753 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 482 transitions. [2022-02-24 00:40:57,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:57,754 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 482 transitions. [2022-02-24 00:40:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-24 00:40:57,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:40:57,755 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:40:57,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 00:40:57,755 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:40:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:40:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1322723537, now seen corresponding path program 1 times [2022-02-24 00:40:57,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:40:57,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733202331] [2022-02-24 00:40:57,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:40:57,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:40:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:40:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:40:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-24 00:40:57,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:40:57,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733202331] [2022-02-24 00:40:57,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733202331] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:40:57,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:40:57,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:40:57,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456189462] [2022-02-24 00:40:57,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:40:57,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:40:57,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:40:57,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:40:57,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:40:57,852 INFO L87 Difference]: Start difference. First operand 324 states and 482 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:40:59,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:01,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:03,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:05,504 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 [] [2022-02-24 00:41:05,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:05,939 INFO L93 Difference]: Finished difference Result 662 states and 988 transitions. [2022-02-24 00:41:05,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:05,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-02-24 00:41:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:05,940 INFO L225 Difference]: With dead ends: 662 [2022-02-24 00:41:05,940 INFO L226 Difference]: Without dead ends: 364 [2022-02-24 00:41:05,941 INFO L932 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 [2022-02-24 00:41:05,941 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:05,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 474 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 491 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-24 00:41:05,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-02-24 00:41:05,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 324. [2022-02-24 00:41:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.4952978056426331) internal successors, (477), 319 states have internal predecessors, (477), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 481 transitions. [2022-02-24 00:41:05,946 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 481 transitions. Word has length 115 [2022-02-24 00:41:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:05,946 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 481 transitions. [2022-02-24 00:41:05,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 481 transitions. [2022-02-24 00:41:05,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-24 00:41:05,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:05,947 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:05,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 00:41:05,948 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:05,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash 714646674, now seen corresponding path program 1 times [2022-02-24 00:41:05,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:05,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446781016] [2022-02-24 00:41:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:05,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:06,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-24 00:41:06,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:06,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446781016] [2022-02-24 00:41:06,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446781016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:06,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:06,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:41:06,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359174287] [2022-02-24 00:41:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:06,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:41:06,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:06,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:41:06,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:41:06,051 INFO L87 Difference]: Start difference. First operand 324 states and 481 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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) [2022-02-24 00:41:08,058 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 [] [2022-02-24 00:41:08,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:08,325 INFO L93 Difference]: Finished difference Result 899 states and 1357 transitions. [2022-02-24 00:41:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:41:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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 115 [2022-02-24 00:41:08,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:08,327 INFO L225 Difference]: With dead ends: 899 [2022-02-24 00:41:08,327 INFO L226 Difference]: Without dead ends: 601 [2022-02-24 00:41:08,328 INFO L932 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 [2022-02-24 00:41:08,328 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:08,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 433 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:41:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-02-24 00:41:08,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2022-02-24 00:41:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 596 states have (on average 1.5033557046979866) internal successors, (896), 596 states have internal predecessors, (896), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 900 transitions. [2022-02-24 00:41:08,337 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 900 transitions. Word has length 115 [2022-02-24 00:41:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:08,337 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 900 transitions. [2022-02-24 00:41:08,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 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) [2022-02-24 00:41:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 900 transitions. [2022-02-24 00:41:08,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-24 00:41:08,339 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:08,339 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:08,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 00:41:08,339 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:08,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash 468333587, now seen corresponding path program 1 times [2022-02-24 00:41:08,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:08,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485426492] [2022-02-24 00:41:08,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:08,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:08,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-24 00:41:08,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:08,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485426492] [2022-02-24 00:41:08,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485426492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:08,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:08,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:41:08,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059746531] [2022-02-24 00:41:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:08,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:41:08,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:41:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:41:08,412 INFO L87 Difference]: Start difference. First operand 601 states and 900 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:10,427 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 [] [2022-02-24 00:41:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:10,664 INFO L93 Difference]: Finished difference Result 1203 states and 1807 transitions. [2022-02-24 00:41:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:41:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-02-24 00:41:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:10,667 INFO L225 Difference]: With dead ends: 1203 [2022-02-24 00:41:10,667 INFO L226 Difference]: Without dead ends: 628 [2022-02-24 00:41:10,668 INFO L932 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 [2022-02-24 00:41:10,669 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:10,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:41:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-02-24 00:41:10,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2022-02-24 00:41:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 623 states have (on average 1.4943820224719102) internal successors, (931), 623 states have internal predecessors, (931), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 935 transitions. [2022-02-24 00:41:10,707 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 935 transitions. Word has length 115 [2022-02-24 00:41:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:10,708 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 935 transitions. [2022-02-24 00:41:10,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 935 transitions. [2022-02-24 00:41:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-24 00:41:10,709 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:10,709 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:10,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 00:41:10,709 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:10,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash 82966804, now seen corresponding path program 1 times [2022-02-24 00:41:10,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:10,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956939810] [2022-02-24 00:41:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:10,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:10,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-02-24 00:41:10,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:10,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956939810] [2022-02-24 00:41:10,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956939810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:10,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:10,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:41:10,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655731896] [2022-02-24 00:41:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:10,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:41:10,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:10,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:41:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:41:10,782 INFO L87 Difference]: Start difference. First operand 628 states and 935 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:12,795 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 [] [2022-02-24 00:41:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:13,018 INFO L93 Difference]: Finished difference Result 1232 states and 1843 transitions. [2022-02-24 00:41:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:41:13,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-02-24 00:41:13,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:13,020 INFO L225 Difference]: With dead ends: 1232 [2022-02-24 00:41:13,020 INFO L226 Difference]: Without dead ends: 630 [2022-02-24 00:41:13,021 INFO L932 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 [2022-02-24 00:41:13,021 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:13,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:41:13,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-02-24 00:41:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-02-24 00:41:13,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 625 states have (on average 1.4928) internal successors, (933), 625 states have internal predecessors, (933), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 937 transitions. [2022-02-24 00:41:13,030 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 937 transitions. Word has length 115 [2022-02-24 00:41:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:13,030 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 937 transitions. [2022-02-24 00:41:13,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 937 transitions. [2022-02-24 00:41:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 00:41:13,031 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:13,032 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:13,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 00:41:13,032 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:13,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash -365757816, now seen corresponding path program 1 times [2022-02-24 00:41:13,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:13,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198335066] [2022-02-24 00:41:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:13,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:41:13,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:13,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198335066] [2022-02-24 00:41:13,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198335066] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:13,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:13,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:41:13,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830169937] [2022-02-24 00:41:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:13,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:41:13,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:13,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:41:13,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:41:13,121 INFO L87 Difference]: Start difference. First operand 630 states and 937 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:14,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:16,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:18,325 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 [] [2022-02-24 00:41:18,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:18,777 INFO L93 Difference]: Finished difference Result 1524 states and 2287 transitions. [2022-02-24 00:41:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:41:18,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-02-24 00:41:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:18,780 INFO L225 Difference]: With dead ends: 1524 [2022-02-24 00:41:18,780 INFO L226 Difference]: Without dead ends: 922 [2022-02-24 00:41:18,781 INFO L932 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 [2022-02-24 00:41:18,781 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:18,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 568 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 398 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 00:41:18,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-02-24 00:41:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2022-02-24 00:41:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 917 states have (on average 1.4961832061068703) internal successors, (1372), 917 states have internal predecessors, (1372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1376 transitions. [2022-02-24 00:41:18,793 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1376 transitions. Word has length 133 [2022-02-24 00:41:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:18,794 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1376 transitions. [2022-02-24 00:41:18,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1376 transitions. [2022-02-24 00:41:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 00:41:18,795 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:18,796 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:18,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 00:41:18,796 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:18,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash 69449236, now seen corresponding path program 1 times [2022-02-24 00:41:18,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:18,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204739426] [2022-02-24 00:41:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:18,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:41:18,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:18,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204739426] [2022-02-24 00:41:18,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204739426] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:18,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:18,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:18,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109486067] [2022-02-24 00:41:18,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:18,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:18,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:18,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:18,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:18,902 INFO L87 Difference]: Start difference. First operand 922 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:20,909 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 [] [2022-02-24 00:41:21,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:21,414 INFO L93 Difference]: Finished difference Result 1967 states and 2949 transitions. [2022-02-24 00:41:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:21,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-24 00:41:21,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:21,417 INFO L225 Difference]: With dead ends: 1967 [2022-02-24 00:41:21,418 INFO L226 Difference]: Without dead ends: 1073 [2022-02-24 00:41:21,419 INFO L932 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 [2022-02-24 00:41:21,419 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 79 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:21,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 645 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 613 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:41:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-02-24 00:41:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 966. [2022-02-24 00:41:21,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.5171696149843912) internal successors, (1458), 961 states have internal predecessors, (1458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1462 transitions. [2022-02-24 00:41:21,446 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1462 transitions. Word has length 173 [2022-02-24 00:41:21,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:21,447 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1462 transitions. [2022-02-24 00:41:21,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1462 transitions. [2022-02-24 00:41:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-24 00:41:21,448 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:21,448 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:21,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 00:41:21,449 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:21,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1139987719, now seen corresponding path program 1 times [2022-02-24 00:41:21,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:21,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10371103] [2022-02-24 00:41:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:21,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:21,573 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-24 00:41:21,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:21,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10371103] [2022-02-24 00:41:21,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10371103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:21,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:21,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:21,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964497749] [2022-02-24 00:41:21,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:21,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:21,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:21,574 INFO L87 Difference]: Start difference. First operand 966 states and 1462 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:23,583 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 [] [2022-02-24 00:41:24,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:24,011 INFO L93 Difference]: Finished difference Result 2093 states and 3146 transitions. [2022-02-24 00:41:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-24 00:41:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:24,015 INFO L225 Difference]: With dead ends: 2093 [2022-02-24 00:41:24,015 INFO L226 Difference]: Without dead ends: 1155 [2022-02-24 00:41:24,016 INFO L932 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 [2022-02-24 00:41:24,016 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 103 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:24,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 339 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:24,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-02-24 00:41:24,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 968. [2022-02-24 00:41:24,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.509865005192108) internal successors, (1454), 963 states have internal predecessors, (1454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1458 transitions. [2022-02-24 00:41:24,032 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1458 transitions. Word has length 174 [2022-02-24 00:41:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:24,032 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1458 transitions. [2022-02-24 00:41:24,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1458 transitions. [2022-02-24 00:41:24,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-02-24 00:41:24,034 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:24,034 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:24,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 00:41:24,035 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:24,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:24,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1480882690, now seen corresponding path program 1 times [2022-02-24 00:41:24,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:24,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918635992] [2022-02-24 00:41:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:24,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:24,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:24,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918635992] [2022-02-24 00:41:24,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918635992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:24,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:24,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:24,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483233097] [2022-02-24 00:41:24,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:24,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:24,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:24,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:24,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:24,164 INFO L87 Difference]: Start difference. First operand 968 states and 1458 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:27,133 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 [] [2022-02-24 00:41:29,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:31,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:31,675 INFO L93 Difference]: Finished difference Result 2003 states and 3009 transitions. [2022-02-24 00:41:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 186 [2022-02-24 00:41:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:31,679 INFO L225 Difference]: With dead ends: 2003 [2022-02-24 00:41:31,679 INFO L226 Difference]: Without dead ends: 1063 [2022-02-24 00:41:31,680 INFO L932 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 [2022-02-24 00:41:31,680 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 96 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:31,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 637 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 592 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:41:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-02-24 00:41:31,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 968. [2022-02-24 00:41:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.5077881619937694) internal successors, (1452), 963 states have internal predecessors, (1452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:31,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1456 transitions. [2022-02-24 00:41:31,693 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1456 transitions. Word has length 186 [2022-02-24 00:41:31,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:31,693 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1456 transitions. [2022-02-24 00:41:31,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:31,693 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1456 transitions. [2022-02-24 00:41:31,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-02-24 00:41:31,695 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:31,695 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:31,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 00:41:31,695 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:31,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:31,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1158446969, now seen corresponding path program 1 times [2022-02-24 00:41:31,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:31,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690916579] [2022-02-24 00:41:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:31,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:31,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:31,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690916579] [2022-02-24 00:41:31,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690916579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:31,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:31,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:31,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036401079] [2022-02-24 00:41:31,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:31,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:31,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:31,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:31,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:31,801 INFO L87 Difference]: Start difference. First operand 968 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:33,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:35,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:37,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:39,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:39,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:39,835 INFO L93 Difference]: Finished difference Result 2092 states and 3127 transitions. [2022-02-24 00:41:39,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:39,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-02-24 00:41:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:39,839 INFO L225 Difference]: With dead ends: 2092 [2022-02-24 00:41:39,839 INFO L226 Difference]: Without dead ends: 1152 [2022-02-24 00:41:39,840 INFO L932 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 [2022-02-24 00:41:39,841 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 124 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:39,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 341 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 451 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-02-24 00:41:39,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-02-24 00:41:39,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-02-24 00:41:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.502596053997923) internal successors, (1447), 963 states have internal predecessors, (1447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1451 transitions. [2022-02-24 00:41:39,855 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1451 transitions. Word has length 187 [2022-02-24 00:41:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:39,855 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1451 transitions. [2022-02-24 00:41:39,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1451 transitions. [2022-02-24 00:41:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-24 00:41:39,857 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:39,857 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:39,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 00:41:39,857 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:39,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:39,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1133184435, now seen corresponding path program 1 times [2022-02-24 00:41:39,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:39,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576137218] [2022-02-24 00:41:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:39,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:39,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:39,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576137218] [2022-02-24 00:41:39,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576137218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:39,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:39,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:39,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914265466] [2022-02-24 00:41:39,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:39,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:39,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:39,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:39,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:39,956 INFO L87 Difference]: Start difference. First operand 968 states and 1451 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) [2022-02-24 00:41:41,971 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 [] [2022-02-24 00:41:42,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:42,466 INFO L93 Difference]: Finished difference Result 2092 states and 3117 transitions. [2022-02-24 00:41:42,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:42,467 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 195 [2022-02-24 00:41:42,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:42,469 INFO L225 Difference]: With dead ends: 2092 [2022-02-24 00:41:42,470 INFO L226 Difference]: Without dead ends: 1152 [2022-02-24 00:41:42,471 INFO L932 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 [2022-02-24 00:41:42,471 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:42,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 388 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:41:42,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-02-24 00:41:42,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-02-24 00:41:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4911734164070614) internal successors, (1436), 963 states have internal predecessors, (1436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:42,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1440 transitions. [2022-02-24 00:41:42,483 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1440 transitions. Word has length 195 [2022-02-24 00:41:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:42,484 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1440 transitions. [2022-02-24 00:41:42,484 INFO L471 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) [2022-02-24 00:41:42,484 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1440 transitions. [2022-02-24 00:41:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-24 00:41:42,485 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:42,486 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:42,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 00:41:42,486 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:42,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:42,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1208187469, now seen corresponding path program 1 times [2022-02-24 00:41:42,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:42,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578177327] [2022-02-24 00:41:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:42,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:42,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:42,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578177327] [2022-02-24 00:41:42,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578177327] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:42,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:42,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:42,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346651511] [2022-02-24 00:41:42,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:42,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:42,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:42,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:42,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:42,602 INFO L87 Difference]: Start difference. First operand 968 states and 1440 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) [2022-02-24 00:41:44,609 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 [] [2022-02-24 00:41:45,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:45,080 INFO L93 Difference]: Finished difference Result 2001 states and 2971 transitions. [2022-02-24 00:41:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:45,080 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 195 [2022-02-24 00:41:45,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:45,083 INFO L225 Difference]: With dead ends: 2001 [2022-02-24 00:41:45,083 INFO L226 Difference]: Without dead ends: 1061 [2022-02-24 00:41:45,084 INFO L932 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 [2022-02-24 00:41:45,084 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 85 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:45,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 631 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:41:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-02-24 00:41:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 968. [2022-02-24 00:41:45,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4890965732087227) internal successors, (1434), 963 states have internal predecessors, (1434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1438 transitions. [2022-02-24 00:41:45,096 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1438 transitions. Word has length 195 [2022-02-24 00:41:45,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:45,097 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1438 transitions. [2022-02-24 00:41:45,097 INFO L471 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) [2022-02-24 00:41:45,097 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1438 transitions. [2022-02-24 00:41:45,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-24 00:41:45,099 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:45,099 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-24 00:41:45,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 00:41:45,099 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:45,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:45,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1114482165, now seen corresponding path program 1 times [2022-02-24 00:41:45,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:45,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391762513] [2022-02-24 00:41:45,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:45,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:45,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:45,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391762513] [2022-02-24 00:41:45,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391762513] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:45,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:45,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:45,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358799101] [2022-02-24 00:41:45,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:45,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:45,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:45,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:45,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:45,212 INFO L87 Difference]: Start difference. First operand 968 states and 1438 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:47,220 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 [] [2022-02-24 00:41:47,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:47,640 INFO L93 Difference]: Finished difference Result 2092 states and 3091 transitions. [2022-02-24 00:41:47,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:47,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-24 00:41:47,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:47,643 INFO L225 Difference]: With dead ends: 2092 [2022-02-24 00:41:47,643 INFO L226 Difference]: Without dead ends: 1152 [2022-02-24 00:41:47,645 INFO L932 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 [2022-02-24 00:41:47,645 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 118 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:47,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 341 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:41:47,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-02-24 00:41:47,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-02-24 00:41:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4776739356178608) internal successors, (1423), 963 states have internal predecessors, (1423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1427 transitions. [2022-02-24 00:41:47,661 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1427 transitions. Word has length 196 [2022-02-24 00:41:47,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:47,661 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1427 transitions. [2022-02-24 00:41:47,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:47,661 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1427 transitions. [2022-02-24 00:41:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-24 00:41:47,663 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:47,663 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-24 00:41:47,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 00:41:47,663 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:47,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1439704426, now seen corresponding path program 1 times [2022-02-24 00:41:47,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:47,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849998458] [2022-02-24 00:41:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:47,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:47,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849998458] [2022-02-24 00:41:47,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849998458] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:47,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:47,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:47,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774561803] [2022-02-24 00:41:47,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:47,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:47,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:47,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:47,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:47,798 INFO L87 Difference]: Start difference. First operand 968 states and 1427 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:50,795 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 [] [2022-02-24 00:41:52,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:54,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:41:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:55,311 INFO L93 Difference]: Finished difference Result 1983 states and 2921 transitions. [2022-02-24 00:41:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:55,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-02-24 00:41:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:55,313 INFO L225 Difference]: With dead ends: 1983 [2022-02-24 00:41:55,313 INFO L226 Difference]: Without dead ends: 1043 [2022-02-24 00:41:55,314 INFO L932 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 [2022-02-24 00:41:55,315 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 74 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:55,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 615 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 559 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:41:55,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-02-24 00:41:55,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 968. [2022-02-24 00:41:55,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4755970924195223) internal successors, (1421), 963 states have internal predecessors, (1421), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1425 transitions. [2022-02-24 00:41:55,327 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1425 transitions. Word has length 196 [2022-02-24 00:41:55,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:55,327 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1425 transitions. [2022-02-24 00:41:55,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1425 transitions. [2022-02-24 00:41:55,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-02-24 00:41:55,329 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:55,329 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:55,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 00:41:55,329 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:55,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:55,330 INFO L85 PathProgramCache]: Analyzing trace with hash 618915137, now seen corresponding path program 1 times [2022-02-24 00:41:55,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:55,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988168199] [2022-02-24 00:41:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:55,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:55,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988168199] [2022-02-24 00:41:55,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988168199] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:55,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:55,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:55,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691598590] [2022-02-24 00:41:55,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:55,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:55,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:55,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:55,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:55,442 INFO L87 Difference]: Start difference. First operand 968 states and 1425 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:57,450 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 [] [2022-02-24 00:41:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:41:57,939 INFO L93 Difference]: Finished difference Result 1983 states and 2917 transitions. [2022-02-24 00:41:57,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:41:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-02-24 00:41:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:41:57,942 INFO L225 Difference]: With dead ends: 1983 [2022-02-24 00:41:57,942 INFO L226 Difference]: Without dead ends: 1043 [2022-02-24 00:41:57,944 INFO L932 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 [2022-02-24 00:41:57,944 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 70 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:41:57,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 613 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 557 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:41:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-02-24 00:41:57,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 968. [2022-02-24 00:41:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4735202492211839) internal successors, (1419), 963 states have internal predecessors, (1419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1423 transitions. [2022-02-24 00:41:57,957 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1423 transitions. Word has length 198 [2022-02-24 00:41:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:41:57,959 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1423 transitions. [2022-02-24 00:41:57,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:41:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1423 transitions. [2022-02-24 00:41:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-02-24 00:41:57,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:41:57,965 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:41:57,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 00:41:57,966 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:41:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:41:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1838021633, now seen corresponding path program 1 times [2022-02-24 00:41:57,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:41:57,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977071713] [2022-02-24 00:41:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:41:57,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:41:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:41:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:41:58,067 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:41:58,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:41:58,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977071713] [2022-02-24 00:41:58,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977071713] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:41:58,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:41:58,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:41:58,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949605059] [2022-02-24 00:41:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:41:58,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:41:58,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:41:58,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:41:58,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:41:58,069 INFO L87 Difference]: Start difference. First operand 968 states and 1423 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:00,076 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 [] [2022-02-24 00:42:00,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:00,527 INFO L93 Difference]: Finished difference Result 2092 states and 3061 transitions. [2022-02-24 00:42:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:00,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2022-02-24 00:42:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:00,530 INFO L225 Difference]: With dead ends: 2092 [2022-02-24 00:42:00,530 INFO L226 Difference]: Without dead ends: 1152 [2022-02-24 00:42:00,531 INFO L932 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 [2022-02-24 00:42:00,532 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 111 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:00,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 341 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:00,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-02-24 00:42:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 968. [2022-02-24 00:42:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4652128764278296) internal successors, (1411), 963 states have internal predecessors, (1411), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1415 transitions. [2022-02-24 00:42:00,546 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1415 transitions. Word has length 199 [2022-02-24 00:42:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:00,546 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1415 transitions. [2022-02-24 00:42:00,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1415 transitions. [2022-02-24 00:42:00,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-02-24 00:42:00,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:00,548 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:00,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 00:42:00,548 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2074435444, now seen corresponding path program 1 times [2022-02-24 00:42:00,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:00,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757349927] [2022-02-24 00:42:00,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:00,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:00,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:00,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757349927] [2022-02-24 00:42:00,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757349927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:00,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:00,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:00,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661991497] [2022-02-24 00:42:00,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:00,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:00,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:00,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:00,646 INFO L87 Difference]: Start difference. First operand 968 states and 1415 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:02,660 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 [] [2022-02-24 00:42:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:03,096 INFO L93 Difference]: Finished difference Result 2221 states and 3252 transitions. [2022-02-24 00:42:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:03,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-02-24 00:42:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:03,100 INFO L225 Difference]: With dead ends: 2221 [2022-02-24 00:42:03,100 INFO L226 Difference]: Without dead ends: 1281 [2022-02-24 00:42:03,101 INFO L932 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 [2022-02-24 00:42:03,101 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 109 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:03,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 341 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2022-02-24 00:42:03,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1058. [2022-02-24 00:42:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4605887939221271) internal successors, (1538), 1053 states have internal predecessors, (1538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1542 transitions. [2022-02-24 00:42:03,127 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1542 transitions. Word has length 200 [2022-02-24 00:42:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:03,127 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1542 transitions. [2022-02-24 00:42:03,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:03,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1542 transitions. [2022-02-24 00:42:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-02-24 00:42:03,129 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:03,129 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:03,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 00:42:03,129 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:03,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:03,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1536764168, now seen corresponding path program 1 times [2022-02-24 00:42:03,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:03,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373930293] [2022-02-24 00:42:03,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:03,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:03,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:03,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373930293] [2022-02-24 00:42:03,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373930293] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:03,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:03,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:03,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002283346] [2022-02-24 00:42:03,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:03,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:03,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:03,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:03,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:03,252 INFO L87 Difference]: Start difference. First operand 1058 states and 1542 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:05,259 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 [] [2022-02-24 00:42:05,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:05,679 INFO L93 Difference]: Finished difference Result 2147 states and 3125 transitions. [2022-02-24 00:42:05,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:05,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-02-24 00:42:05,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:05,682 INFO L225 Difference]: With dead ends: 2147 [2022-02-24 00:42:05,682 INFO L226 Difference]: Without dead ends: 1117 [2022-02-24 00:42:05,684 INFO L932 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 [2022-02-24 00:42:05,684 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 60 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:05,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 599 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:05,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-02-24 00:42:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1058. [2022-02-24 00:42:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4586894586894588) internal successors, (1536), 1053 states have internal predecessors, (1536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1540 transitions. [2022-02-24 00:42:05,700 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1540 transitions. Word has length 201 [2022-02-24 00:42:05,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:05,700 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1540 transitions. [2022-02-24 00:42:05,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1540 transitions. [2022-02-24 00:42:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-02-24 00:42:05,701 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:05,702 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1] [2022-02-24 00:42:05,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 00:42:05,702 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:05,702 INFO L85 PathProgramCache]: Analyzing trace with hash 671548300, now seen corresponding path program 1 times [2022-02-24 00:42:05,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:05,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319097563] [2022-02-24 00:42:05,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:05,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:05,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:05,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319097563] [2022-02-24 00:42:05,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319097563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:05,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:05,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:05,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624759548] [2022-02-24 00:42:05,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:05,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:05,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:05,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:05,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:05,816 INFO L87 Difference]: Start difference. First operand 1058 states and 1540 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:07,831 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 [] [2022-02-24 00:42:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:08,235 INFO L93 Difference]: Finished difference Result 2143 states and 3117 transitions. [2022-02-24 00:42:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:08,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-02-24 00:42:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:08,238 INFO L225 Difference]: With dead ends: 2143 [2022-02-24 00:42:08,238 INFO L226 Difference]: Without dead ends: 1113 [2022-02-24 00:42:08,239 INFO L932 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 [2022-02-24 00:42:08,240 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 53 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:08,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 595 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2022-02-24 00:42:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1058. [2022-02-24 00:42:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4567901234567902) internal successors, (1534), 1053 states have internal predecessors, (1534), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1538 transitions. [2022-02-24 00:42:08,257 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1538 transitions. Word has length 201 [2022-02-24 00:42:08,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:08,258 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1538 transitions. [2022-02-24 00:42:08,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1538 transitions. [2022-02-24 00:42:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-24 00:42:08,260 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:08,260 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:08,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 00:42:08,260 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:08,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1001994762, now seen corresponding path program 1 times [2022-02-24 00:42:08,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:08,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692718253] [2022-02-24 00:42:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:08,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:08,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692718253] [2022-02-24 00:42:08,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692718253] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:08,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:08,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:08,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972392844] [2022-02-24 00:42:08,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:08,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:08,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:08,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:08,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:08,384 INFO L87 Difference]: Start difference. First operand 1058 states and 1538 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) [2022-02-24 00:42:10,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:12,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:14,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:16,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:16,617 INFO L93 Difference]: Finished difference Result 2272 states and 3291 transitions. [2022-02-24 00:42:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:16,617 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 202 [2022-02-24 00:42:16,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:16,621 INFO L225 Difference]: With dead ends: 2272 [2022-02-24 00:42:16,621 INFO L226 Difference]: Without dead ends: 1242 [2022-02-24 00:42:16,623 INFO L932 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 [2022-02-24 00:42:16,623 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 57 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:16,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 343 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 451 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-24 00:42:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-02-24 00:42:16,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1058. [2022-02-24 00:42:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.446343779677113) internal successors, (1523), 1053 states have internal predecessors, (1523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1527 transitions. [2022-02-24 00:42:16,646 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1527 transitions. Word has length 202 [2022-02-24 00:42:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:16,646 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1527 transitions. [2022-02-24 00:42:16,647 INFO L471 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) [2022-02-24 00:42:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1527 transitions. [2022-02-24 00:42:16,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-02-24 00:42:16,648 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:16,649 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:16,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 00:42:16,649 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:16,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:16,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1796130157, now seen corresponding path program 1 times [2022-02-24 00:42:16,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:16,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417490819] [2022-02-24 00:42:16,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:16,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:16,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:16,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:16,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417490819] [2022-02-24 00:42:16,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417490819] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:16,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:16,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:16,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021796856] [2022-02-24 00:42:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:16,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:16,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:16,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:16,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:16,816 INFO L87 Difference]: Start difference. First operand 1058 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:17,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:19,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:21,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:23,949 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 [] [2022-02-24 00:42:24,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:24,412 INFO L93 Difference]: Finished difference Result 2131 states and 3075 transitions. [2022-02-24 00:42:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-02-24 00:42:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:24,415 INFO L225 Difference]: With dead ends: 2131 [2022-02-24 00:42:24,415 INFO L226 Difference]: Without dead ends: 1101 [2022-02-24 00:42:24,417 INFO L932 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 [2022-02-24 00:42:24,417 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 47 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:24,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 587 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 489 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 00:42:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2022-02-24 00:42:24,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1058. [2022-02-24 00:42:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1053 states have (on average 1.4444444444444444) internal successors, (1521), 1053 states have internal predecessors, (1521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:24,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1525 transitions. [2022-02-24 00:42:24,443 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1525 transitions. Word has length 203 [2022-02-24 00:42:24,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:24,444 INFO L470 AbstractCegarLoop]: Abstraction has 1058 states and 1525 transitions. [2022-02-24 00:42:24,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:24,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1525 transitions. [2022-02-24 00:42:24,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-24 00:42:24,445 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:24,446 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:24,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 00:42:24,446 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:24,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2134209051, now seen corresponding path program 1 times [2022-02-24 00:42:24,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:24,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079947306] [2022-02-24 00:42:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:24,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:24,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:24,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:24,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079947306] [2022-02-24 00:42:24,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079947306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:24,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:24,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:24,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703405450] [2022-02-24 00:42:24,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:24,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:24,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:24,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:24,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:24,597 INFO L87 Difference]: Start difference. First operand 1058 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:26,606 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 [] [2022-02-24 00:42:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:26,998 INFO L93 Difference]: Finished difference Result 2401 states and 3466 transitions. [2022-02-24 00:42:26,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:26,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-02-24 00:42:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:27,001 INFO L225 Difference]: With dead ends: 2401 [2022-02-24 00:42:27,001 INFO L226 Difference]: Without dead ends: 1371 [2022-02-24 00:42:27,002 INFO L932 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 [2022-02-24 00:42:27,002 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 105 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:27,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 341 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:27,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-02-24 00:42:27,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1157. [2022-02-24 00:42:27,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4409722222222223) internal successors, (1660), 1152 states have internal predecessors, (1660), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1664 transitions. [2022-02-24 00:42:27,020 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1664 transitions. Word has length 204 [2022-02-24 00:42:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:27,020 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1664 transitions. [2022-02-24 00:42:27,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1664 transitions. [2022-02-24 00:42:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-02-24 00:42:27,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:27,022 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:27,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 00:42:27,022 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:27,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:27,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1181185262, now seen corresponding path program 1 times [2022-02-24 00:42:27,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:27,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137333517] [2022-02-24 00:42:27,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:27,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:27,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:27,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137333517] [2022-02-24 00:42:27,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137333517] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:27,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:27,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:27,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009633131] [2022-02-24 00:42:27,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:27,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:27,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:27,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:27,116 INFO L87 Difference]: Start difference. First operand 1157 states and 1664 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:29,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:29,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:29,510 INFO L93 Difference]: Finished difference Result 2321 states and 3339 transitions. [2022-02-24 00:42:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-02-24 00:42:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:29,512 INFO L225 Difference]: With dead ends: 2321 [2022-02-24 00:42:29,513 INFO L226 Difference]: Without dead ends: 1192 [2022-02-24 00:42:29,514 INFO L932 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 [2022-02-24 00:42:29,514 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 40 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:29,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 577 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-02-24 00:42:29,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1157. [2022-02-24 00:42:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4392361111111112) internal successors, (1658), 1152 states have internal predecessors, (1658), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1662 transitions. [2022-02-24 00:42:29,535 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1662 transitions. Word has length 205 [2022-02-24 00:42:29,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:29,535 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1662 transitions. [2022-02-24 00:42:29,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:29,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1662 transitions. [2022-02-24 00:42:29,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-02-24 00:42:29,537 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:29,537 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:42:29,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 00:42:29,537 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:29,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:29,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1593326650, now seen corresponding path program 1 times [2022-02-24 00:42:29,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:29,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938953933] [2022-02-24 00:42:29,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:29,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:29,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:29,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938953933] [2022-02-24 00:42:29,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938953933] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:29,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:29,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:29,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870848254] [2022-02-24 00:42:29,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:29,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:29,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:29,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:29,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:29,652 INFO L87 Difference]: Start difference. First operand 1157 states and 1662 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:30,831 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 [] [2022-02-24 00:42:32,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:34,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:36,912 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 [] [2022-02-24 00:42:37,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:37,287 INFO L93 Difference]: Finished difference Result 2321 states and 3335 transitions. [2022-02-24 00:42:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:37,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-02-24 00:42:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:37,289 INFO L225 Difference]: With dead ends: 2321 [2022-02-24 00:42:37,289 INFO L226 Difference]: Without dead ends: 1192 [2022-02-24 00:42:37,290 INFO L932 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 [2022-02-24 00:42:37,290 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 38 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:37,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 575 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-24 00:42:37,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-02-24 00:42:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1157. [2022-02-24 00:42:37,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4375) internal successors, (1656), 1152 states have internal predecessors, (1656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1660 transitions. [2022-02-24 00:42:37,309 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1660 transitions. Word has length 205 [2022-02-24 00:42:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:37,310 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1660 transitions. [2022-02-24 00:42:37,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:37,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1660 transitions. [2022-02-24 00:42:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-24 00:42:37,311 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:37,311 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:37,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 00:42:37,311 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:37,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2090111197, now seen corresponding path program 1 times [2022-02-24 00:42:37,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:37,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078366393] [2022-02-24 00:42:37,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:37,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:37,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:37,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:37,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078366393] [2022-02-24 00:42:37,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078366393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:37,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:37,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:37,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177689818] [2022-02-24 00:42:37,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:37,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:37,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:37,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:37,412 INFO L87 Difference]: Start difference. First operand 1157 states and 1660 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:39,431 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 [] [2022-02-24 00:42:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:39,831 INFO L93 Difference]: Finished difference Result 2317 states and 3327 transitions. [2022-02-24 00:42:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:39,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2022-02-24 00:42:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:39,834 INFO L225 Difference]: With dead ends: 2317 [2022-02-24 00:42:39,834 INFO L226 Difference]: Without dead ends: 1188 [2022-02-24 00:42:39,835 INFO L932 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 [2022-02-24 00:42:39,836 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 35 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:39,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 571 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-02-24 00:42:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1157. [2022-02-24 00:42:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4357638888888888) internal successors, (1654), 1152 states have internal predecessors, (1654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1658 transitions. [2022-02-24 00:42:39,878 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1658 transitions. Word has length 206 [2022-02-24 00:42:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:39,878 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1658 transitions. [2022-02-24 00:42:39,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:39,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1658 transitions. [2022-02-24 00:42:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-02-24 00:42:39,880 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:39,880 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:42:39,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 00:42:39,880 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:39,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:39,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1497788414, now seen corresponding path program 1 times [2022-02-24 00:42:39,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:39,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349417142] [2022-02-24 00:42:39,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:39,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:39,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:39,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349417142] [2022-02-24 00:42:39,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349417142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:39,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:39,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:39,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916110758] [2022-02-24 00:42:39,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:39,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:39,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:39,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:39,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:39,985 INFO L87 Difference]: Start difference. First operand 1157 states and 1658 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:41,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:43,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:45,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:47,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:47,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:47,855 INFO L93 Difference]: Finished difference Result 2317 states and 3323 transitions. [2022-02-24 00:42:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:47,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-02-24 00:42:47,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:47,858 INFO L225 Difference]: With dead ends: 2317 [2022-02-24 00:42:47,858 INFO L226 Difference]: Without dead ends: 1188 [2022-02-24 00:42:47,859 INFO L932 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 [2022-02-24 00:42:47,860 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 33 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:47,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 569 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 00:42:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-02-24 00:42:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1157. [2022-02-24 00:42:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4340277777777777) internal successors, (1652), 1152 states have internal predecessors, (1652), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:47,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1656 transitions. [2022-02-24 00:42:47,899 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1656 transitions. Word has length 207 [2022-02-24 00:42:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:47,899 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1656 transitions. [2022-02-24 00:42:47,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:47,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1656 transitions. [2022-02-24 00:42:47,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-24 00:42:47,901 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:47,901 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:47,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 00:42:47,902 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:47,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:47,902 INFO L85 PathProgramCache]: Analyzing trace with hash -146447132, now seen corresponding path program 1 times [2022-02-24 00:42:47,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:47,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480736912] [2022-02-24 00:42:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:47,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-02-24 00:42:48,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:48,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480736912] [2022-02-24 00:42:48,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480736912] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:48,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:48,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:48,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116077532] [2022-02-24 00:42:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:48,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:48,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:48,036 INFO L87 Difference]: Start difference. First operand 1157 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 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) [2022-02-24 00:42:50,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:51,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:42:53,705 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 [] [2022-02-24 00:42:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:54,112 INFO L93 Difference]: Finished difference Result 2470 states and 3527 transitions. [2022-02-24 00:42:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:54,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 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 208 [2022-02-24 00:42:54,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:54,115 INFO L225 Difference]: With dead ends: 2470 [2022-02-24 00:42:54,115 INFO L226 Difference]: Without dead ends: 1341 [2022-02-24 00:42:54,116 INFO L932 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 [2022-02-24 00:42:54,116 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 100 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 57 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:54,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 341 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 451 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-24 00:42:54,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-02-24 00:42:54,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1157. [2022-02-24 00:42:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4270833333333333) internal successors, (1644), 1152 states have internal predecessors, (1644), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1648 transitions. [2022-02-24 00:42:54,135 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1648 transitions. Word has length 208 [2022-02-24 00:42:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:54,135 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1648 transitions. [2022-02-24 00:42:54,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 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) [2022-02-24 00:42:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1648 transitions. [2022-02-24 00:42:54,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-02-24 00:42:54,136 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:54,137 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-24 00:42:54,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 00:42:54,137 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1906799626, now seen corresponding path program 1 times [2022-02-24 00:42:54,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:54,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53060214] [2022-02-24 00:42:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:54,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:54,274 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-02-24 00:42:54,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:54,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53060214] [2022-02-24 00:42:54,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53060214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:54,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:54,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:54,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201063645] [2022-02-24 00:42:54,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:54,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:54,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:54,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:54,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:54,276 INFO L87 Difference]: Start difference. First operand 1157 states and 1648 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:56,290 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 [] [2022-02-24 00:42:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:56,666 INFO L93 Difference]: Finished difference Result 2313 states and 3299 transitions. [2022-02-24 00:42:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:56,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2022-02-24 00:42:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:56,668 INFO L225 Difference]: With dead ends: 2313 [2022-02-24 00:42:56,668 INFO L226 Difference]: Without dead ends: 1184 [2022-02-24 00:42:56,669 INFO L932 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 [2022-02-24 00:42:56,670 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:56,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 563 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:56,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-02-24 00:42:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1157. [2022-02-24 00:42:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4253472222222223) internal successors, (1642), 1152 states have internal predecessors, (1642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:56,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1646 transitions. [2022-02-24 00:42:56,687 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1646 transitions. Word has length 212 [2022-02-24 00:42:56,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:56,687 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1646 transitions. [2022-02-24 00:42:56,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1646 transitions. [2022-02-24 00:42:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-24 00:42:56,689 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:56,689 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:56,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 00:42:56,689 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1020190850, now seen corresponding path program 1 times [2022-02-24 00:42:56,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:56,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953793860] [2022-02-24 00:42:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-02-24 00:42:56,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:56,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953793860] [2022-02-24 00:42:56,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953793860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:56,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:56,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:56,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935375887] [2022-02-24 00:42:56,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:56,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:56,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:56,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:56,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:56,796 INFO L87 Difference]: Start difference. First operand 1157 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:58,803 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 [] [2022-02-24 00:42:59,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:42:59,205 INFO L93 Difference]: Finished difference Result 2313 states and 3295 transitions. [2022-02-24 00:42:59,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:42:59,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-02-24 00:42:59,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:42:59,208 INFO L225 Difference]: With dead ends: 2313 [2022-02-24 00:42:59,208 INFO L226 Difference]: Without dead ends: 1184 [2022-02-24 00:42:59,209 INFO L932 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 [2022-02-24 00:42:59,209 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 46 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:42:59,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 561 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:42:59,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-02-24 00:42:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1157. [2022-02-24 00:42:59,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1152 states have (on average 1.4236111111111112) internal successors, (1640), 1152 states have internal predecessors, (1640), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1644 transitions. [2022-02-24 00:42:59,228 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1644 transitions. Word has length 213 [2022-02-24 00:42:59,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:42:59,228 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1644 transitions. [2022-02-24 00:42:59,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:42:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1644 transitions. [2022-02-24 00:42:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-24 00:42:59,229 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:42:59,230 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:42:59,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 00:42:59,230 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:42:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:42:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1851891999, now seen corresponding path program 1 times [2022-02-24 00:42:59,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:42:59,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643491008] [2022-02-24 00:42:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:42:59,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:42:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:42:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:42:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-02-24 00:42:59,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:42:59,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643491008] [2022-02-24 00:42:59,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643491008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:42:59,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:42:59,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:42:59,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739148302] [2022-02-24 00:42:59,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:42:59,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:42:59,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:42:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:42:59,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:42:59,355 INFO L87 Difference]: Start difference. First operand 1157 states and 1644 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:01,362 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 [] [2022-02-24 00:43:01,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:01,791 INFO L93 Difference]: Finished difference Result 2599 states and 3698 transitions. [2022-02-24 00:43:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:01,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-02-24 00:43:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:01,793 INFO L225 Difference]: With dead ends: 2599 [2022-02-24 00:43:01,793 INFO L226 Difference]: Without dead ends: 1470 [2022-02-24 00:43:01,795 INFO L932 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 [2022-02-24 00:43:01,802 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:01,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 341 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:01,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-02-24 00:43:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1220. [2022-02-24 00:43:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1215 states have (on average 1.4065843621399177) internal successors, (1709), 1215 states have internal predecessors, (1709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1713 transitions. [2022-02-24 00:43:01,830 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1713 transitions. Word has length 214 [2022-02-24 00:43:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:01,830 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1713 transitions. [2022-02-24 00:43:01,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1713 transitions. [2022-02-24 00:43:01,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-24 00:43:01,832 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:01,832 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-24 00:43:01,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 00:43:01,832 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:01,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1975990897, now seen corresponding path program 1 times [2022-02-24 00:43:01,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:01,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11025920] [2022-02-24 00:43:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:01,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:01,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-24 00:43:01,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:01,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11025920] [2022-02-24 00:43:01,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11025920] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:01,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:01,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 00:43:01,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181212703] [2022-02-24 00:43:01,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:01,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:43:01,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:01,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:43:01,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 00:43:01,980 INFO L87 Difference]: Start difference. First operand 1220 states and 1713 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:03,988 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 [] [2022-02-24 00:43:04,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:04,387 INFO L93 Difference]: Finished difference Result 2811 states and 3958 transitions. [2022-02-24 00:43:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:43:04,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-02-24 00:43:04,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:04,390 INFO L225 Difference]: With dead ends: 2811 [2022-02-24 00:43:04,390 INFO L226 Difference]: Without dead ends: 1619 [2022-02-24 00:43:04,391 INFO L932 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 [2022-02-24 00:43:04,391 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 133 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:04,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 571 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:04,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-02-24 00:43:04,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2022-02-24 00:43:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1614 states have (on average 1.4052044609665428) internal successors, (2268), 1614 states have internal predecessors, (2268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2272 transitions. [2022-02-24 00:43:04,414 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2272 transitions. Word has length 217 [2022-02-24 00:43:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:04,414 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2272 transitions. [2022-02-24 00:43:04,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2272 transitions. [2022-02-24 00:43:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-24 00:43:04,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:04,416 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:04,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 00:43:04,416 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:04,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:04,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1082074321, now seen corresponding path program 1 times [2022-02-24 00:43:04,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:04,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345054866] [2022-02-24 00:43:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:04,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-24 00:43:04,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:04,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345054866] [2022-02-24 00:43:04,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345054866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:04,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:04,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 00:43:04,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343469665] [2022-02-24 00:43:04,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:04,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 00:43:04,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:04,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 00:43:04,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-24 00:43:04,559 INFO L87 Difference]: Start difference. First operand 1619 states and 2272 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:06,567 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 [] [2022-02-24 00:43:07,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:07,328 INFO L93 Difference]: Finished difference Result 4168 states and 5894 transitions. [2022-02-24 00:43:07,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 00:43:07,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 261 [2022-02-24 00:43:07,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:07,332 INFO L225 Difference]: With dead ends: 4168 [2022-02-24 00:43:07,332 INFO L226 Difference]: Without dead ends: 2577 [2022-02-24 00:43:07,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:43:07,335 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 102 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:07,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 884 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-02-24 00:43:07,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2022-02-24 00:43:07,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2506. [2022-02-24 00:43:07,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2501 states have (on average 1.4234306277489004) internal successors, (3560), 2501 states have internal predecessors, (3560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3564 transitions. [2022-02-24 00:43:07,389 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3564 transitions. Word has length 261 [2022-02-24 00:43:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:07,389 INFO L470 AbstractCegarLoop]: Abstraction has 2506 states and 3564 transitions. [2022-02-24 00:43:07,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3564 transitions. [2022-02-24 00:43:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-24 00:43:07,392 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:07,392 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:07,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 00:43:07,392 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:07,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:07,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1512152496, now seen corresponding path program 1 times [2022-02-24 00:43:07,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:07,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286212472] [2022-02-24 00:43:07,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:07,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:07,518 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-02-24 00:43:07,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:07,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286212472] [2022-02-24 00:43:07,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286212472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:07,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:07,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:07,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594322902] [2022-02-24 00:43:07,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:07,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:07,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:07,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:07,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:07,519 INFO L87 Difference]: Start difference. First operand 2506 states and 3564 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:09,527 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 [] [2022-02-24 00:43:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:10,075 INFO L93 Difference]: Finished difference Result 5555 states and 7884 transitions. [2022-02-24 00:43:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:10,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 261 [2022-02-24 00:43:10,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:10,079 INFO L225 Difference]: With dead ends: 5555 [2022-02-24 00:43:10,080 INFO L226 Difference]: Without dead ends: 3063 [2022-02-24 00:43:10,082 INFO L932 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 [2022-02-24 00:43:10,082 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 54 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:10,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 607 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 574 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:43:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2022-02-24 00:43:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 2791. [2022-02-24 00:43:10,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2786 states have (on average 1.429289303661163) internal successors, (3982), 2786 states have internal predecessors, (3982), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3986 transitions. [2022-02-24 00:43:10,127 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3986 transitions. Word has length 261 [2022-02-24 00:43:10,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:10,127 INFO L470 AbstractCegarLoop]: Abstraction has 2791 states and 3986 transitions. [2022-02-24 00:43:10,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3986 transitions. [2022-02-24 00:43:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-24 00:43:10,130 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:10,130 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:10,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 00:43:10,130 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:10,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1842796416, now seen corresponding path program 1 times [2022-02-24 00:43:10,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:10,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595306740] [2022-02-24 00:43:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:10,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-02-24 00:43:10,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:10,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595306740] [2022-02-24 00:43:10,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595306740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:10,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:10,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:10,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031491869] [2022-02-24 00:43:10,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:10,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:10,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:10,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:10,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:10,283 INFO L87 Difference]: Start difference. First operand 2791 states and 3986 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:12,291 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 [] [2022-02-24 00:43:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:12,792 INFO L93 Difference]: Finished difference Result 5955 states and 8497 transitions. [2022-02-24 00:43:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 274 [2022-02-24 00:43:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:12,798 INFO L225 Difference]: With dead ends: 5955 [2022-02-24 00:43:12,798 INFO L226 Difference]: Without dead ends: 3192 [2022-02-24 00:43:12,801 INFO L932 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 [2022-02-24 00:43:12,801 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 37 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:12,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 572 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:43:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2022-02-24 00:43:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3015. [2022-02-24 00:43:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3010 states have (on average 1.4275747508305647) internal successors, (4297), 3010 states have internal predecessors, (4297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 4301 transitions. [2022-02-24 00:43:12,865 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 4301 transitions. Word has length 274 [2022-02-24 00:43:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:12,865 INFO L470 AbstractCegarLoop]: Abstraction has 3015 states and 4301 transitions. [2022-02-24 00:43:12,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 4301 transitions. [2022-02-24 00:43:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-24 00:43:12,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:12,869 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:12,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 00:43:12,869 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:12,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:12,869 INFO L85 PathProgramCache]: Analyzing trace with hash -431060527, now seen corresponding path program 1 times [2022-02-24 00:43:12,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:12,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525788209] [2022-02-24 00:43:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:12,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:12,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-02-24 00:43:12,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:12,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525788209] [2022-02-24 00:43:12,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525788209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:12,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:12,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:12,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094544099] [2022-02-24 00:43:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:12,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:12,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:12,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:12,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:12,992 INFO L87 Difference]: Start difference. First operand 3015 states and 4301 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:15,000 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 [] [2022-02-24 00:43:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:15,416 INFO L93 Difference]: Finished difference Result 6263 states and 8924 transitions. [2022-02-24 00:43:15,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:15,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 283 [2022-02-24 00:43:15,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:15,425 INFO L225 Difference]: With dead ends: 6263 [2022-02-24 00:43:15,425 INFO L226 Difference]: Without dead ends: 3276 [2022-02-24 00:43:15,429 INFO L932 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 [2022-02-24 00:43:15,429 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:15,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 550 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 417 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:15,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2022-02-24 00:43:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3197. [2022-02-24 00:43:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3192 states have (on average 1.425125313283208) internal successors, (4549), 3192 states have internal predecessors, (4549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4553 transitions. [2022-02-24 00:43:15,479 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4553 transitions. Word has length 283 [2022-02-24 00:43:15,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:15,479 INFO L470 AbstractCegarLoop]: Abstraction has 3197 states and 4553 transitions. [2022-02-24 00:43:15,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:15,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4553 transitions. [2022-02-24 00:43:15,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-24 00:43:15,483 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:15,483 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:15,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 00:43:15,483 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:15,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:15,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1595238686, now seen corresponding path program 1 times [2022-02-24 00:43:15,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:15,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509979549] [2022-02-24 00:43:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:15,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:15,617 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-02-24 00:43:15,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:15,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509979549] [2022-02-24 00:43:15,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509979549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:15,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:15,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:15,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078956357] [2022-02-24 00:43:15,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:15,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:15,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:15,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:15,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:15,618 INFO L87 Difference]: Start difference. First operand 3197 states and 4553 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:17,631 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 [] [2022-02-24 00:43:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:18,123 INFO L93 Difference]: Finished difference Result 6451 states and 9188 transitions. [2022-02-24 00:43:18,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-02-24 00:43:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:18,127 INFO L225 Difference]: With dead ends: 6451 [2022-02-24 00:43:18,127 INFO L226 Difference]: Without dead ends: 3282 [2022-02-24 00:43:18,129 INFO L932 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 [2022-02-24 00:43:18,129 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 34 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:18,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 569 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2022-02-24 00:43:18,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 3197. [2022-02-24 00:43:18,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3192 states have (on average 1.4238721804511278) internal successors, (4545), 3192 states have internal predecessors, (4545), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 4549 transitions. [2022-02-24 00:43:18,178 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 4549 transitions. Word has length 286 [2022-02-24 00:43:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:18,179 INFO L470 AbstractCegarLoop]: Abstraction has 3197 states and 4549 transitions. [2022-02-24 00:43:18,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 4549 transitions. [2022-02-24 00:43:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-02-24 00:43:18,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:18,183 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:18,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 00:43:18,184 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1689725604, now seen corresponding path program 1 times [2022-02-24 00:43:18,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:18,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011809765] [2022-02-24 00:43:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-02-24 00:43:18,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:18,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011809765] [2022-02-24 00:43:18,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011809765] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:18,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:18,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:18,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764978588] [2022-02-24 00:43:18,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:18,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:18,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:18,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:18,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:18,338 INFO L87 Difference]: Start difference. First operand 3197 states and 4549 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:21,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:23,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:25,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:25,847 INFO L93 Difference]: Finished difference Result 6697 states and 9532 transitions. [2022-02-24 00:43:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 289 [2022-02-24 00:43:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:25,851 INFO L225 Difference]: With dead ends: 6697 [2022-02-24 00:43:25,852 INFO L226 Difference]: Without dead ends: 3528 [2022-02-24 00:43:25,854 INFO L932 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 [2022-02-24 00:43:25,854 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 32 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:25,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 566 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 465 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-02-24 00:43:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-02-24 00:43:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3393. [2022-02-24 00:43:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3388 states have (on average 1.422077922077922) internal successors, (4818), 3388 states have internal predecessors, (4818), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4822 transitions. [2022-02-24 00:43:25,906 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4822 transitions. Word has length 289 [2022-02-24 00:43:25,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:25,906 INFO L470 AbstractCegarLoop]: Abstraction has 3393 states and 4822 transitions. [2022-02-24 00:43:25,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4822 transitions. [2022-02-24 00:43:25,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-02-24 00:43:25,910 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:25,910 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:25,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 00:43:25,911 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:25,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:25,911 INFO L85 PathProgramCache]: Analyzing trace with hash -294707517, now seen corresponding path program 1 times [2022-02-24 00:43:25,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:25,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082495790] [2022-02-24 00:43:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:25,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:26,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-02-24 00:43:26,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:26,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082495790] [2022-02-24 00:43:26,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082495790] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:26,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:26,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:26,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140212876] [2022-02-24 00:43:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:26,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:26,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:26,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:26,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:26,055 INFO L87 Difference]: Start difference. First operand 3393 states and 4822 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:28,067 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 [] [2022-02-24 00:43:28,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:28,604 INFO L93 Difference]: Finished difference Result 6993 states and 9910 transitions. [2022-02-24 00:43:28,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 290 [2022-02-24 00:43:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:28,608 INFO L225 Difference]: With dead ends: 6993 [2022-02-24 00:43:28,608 INFO L226 Difference]: Without dead ends: 3628 [2022-02-24 00:43:28,612 INFO L932 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 [2022-02-24 00:43:28,613 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 60 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:28,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 600 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 556 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:43:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2022-02-24 00:43:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3393. [2022-02-24 00:43:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3388 states have (on average 1.4200118063754428) internal successors, (4811), 3388 states have internal predecessors, (4811), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4815 transitions. [2022-02-24 00:43:28,677 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4815 transitions. Word has length 290 [2022-02-24 00:43:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:28,677 INFO L470 AbstractCegarLoop]: Abstraction has 3393 states and 4815 transitions. [2022-02-24 00:43:28,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4815 transitions. [2022-02-24 00:43:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-02-24 00:43:28,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:28,682 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:28,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 00:43:28,682 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:28,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:28,682 INFO L85 PathProgramCache]: Analyzing trace with hash -769202205, now seen corresponding path program 1 times [2022-02-24 00:43:28,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:28,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119643880] [2022-02-24 00:43:28,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:28,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 442 proven. 19 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-02-24 00:43:28,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:28,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119643880] [2022-02-24 00:43:28,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119643880] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:43:28,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046530876] [2022-02-24 00:43:28,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:28,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:43:28,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:43:28,874 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) [2022-02-24 00:43:28,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-24 00:43:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:29,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-24 00:43:29,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:43:30,043 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:43:30,044 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 [2022-02-24 00:43:30,110 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:43:30,110 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 [2022-02-24 00:43:30,170 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 [2022-02-24 00:43:30,278 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 [2022-02-24 00:43:30,319 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:43:30,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 00:43:30,386 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 [2022-02-24 00:43:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 437 proven. 83 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-02-24 00:43:30,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:43:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-02-24 00:43:30,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046530876] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:43:30,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:43:30,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-02-24 00:43:30,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079623123] [2022-02-24 00:43:30,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:30,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:43:30,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:30,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:43:30,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-24 00:43:30,852 INFO L87 Difference]: Start difference. First operand 3393 states and 4815 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2022-02-24 00:43:32,871 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 [] [2022-02-24 00:43:33,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:33,240 INFO L93 Difference]: Finished difference Result 7382 states and 10474 transitions. [2022-02-24 00:43:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:43:33,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 290 [2022-02-24 00:43:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:33,245 INFO L225 Difference]: With dead ends: 7382 [2022-02-24 00:43:33,246 INFO L226 Difference]: Without dead ends: 4017 [2022-02-24 00:43:33,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-24 00:43:33,252 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 103 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:33,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 381 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 238 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 00:43:33,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4017 states. [2022-02-24 00:43:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4017 to 3553. [2022-02-24 00:43:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.4168545659526495) internal successors, (5027), 3548 states have internal predecessors, (5027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5031 transitions. [2022-02-24 00:43:33,318 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5031 transitions. Word has length 290 [2022-02-24 00:43:33,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:33,318 INFO L470 AbstractCegarLoop]: Abstraction has 3553 states and 5031 transitions. [2022-02-24 00:43:33,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2022-02-24 00:43:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5031 transitions. [2022-02-24 00:43:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-02-24 00:43:33,323 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:33,323 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:33,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-24 00:43:33,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:43:33,541 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:33,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:33,541 INFO L85 PathProgramCache]: Analyzing trace with hash -714948911, now seen corresponding path program 1 times [2022-02-24 00:43:33,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:33,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975942810] [2022-02-24 00:43:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:33,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:33,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 423 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-02-24 00:43:33,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:33,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975942810] [2022-02-24 00:43:33,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975942810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:33,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:33,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:33,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902615479] [2022-02-24 00:43:33,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:33,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:33,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:33,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:33,719 INFO L87 Difference]: Start difference. First operand 3553 states and 5031 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:36,702 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 [] [2022-02-24 00:43:38,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:40,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:41,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:41,274 INFO L93 Difference]: Finished difference Result 7257 states and 10237 transitions. [2022-02-24 00:43:41,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:41,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 291 [2022-02-24 00:43:41,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:41,279 INFO L225 Difference]: With dead ends: 7257 [2022-02-24 00:43:41,279 INFO L226 Difference]: Without dead ends: 3732 [2022-02-24 00:43:41,283 INFO L932 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 [2022-02-24 00:43:41,283 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 54 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:41,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 590 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 521 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 00:43:41,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3732 states. [2022-02-24 00:43:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3732 to 3553. [2022-02-24 00:43:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.414881623449831) internal successors, (5020), 3548 states have internal predecessors, (5020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5024 transitions. [2022-02-24 00:43:41,357 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5024 transitions. Word has length 291 [2022-02-24 00:43:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:41,357 INFO L470 AbstractCegarLoop]: Abstraction has 3553 states and 5024 transitions. [2022-02-24 00:43:41,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5024 transitions. [2022-02-24 00:43:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-02-24 00:43:41,362 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:41,362 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:41,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 00:43:41,362 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:41,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:41,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1238191763, now seen corresponding path program 1 times [2022-02-24 00:43:41,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:41,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088150798] [2022-02-24 00:43:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:41,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 428 proven. 69 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-02-24 00:43:41,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:41,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088150798] [2022-02-24 00:43:41,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088150798] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:43:41,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173591721] [2022-02-24 00:43:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:41,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:43:41,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:43:41,532 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) [2022-02-24 00:43:41,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-24 00:43:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:42,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-24 00:43:42,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:43:42,582 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:43:42,582 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 [2022-02-24 00:43:42,620 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-24 00:43:42,621 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 [2022-02-24 00:43:42,688 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 [2022-02-24 00:43:42,796 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 [2022-02-24 00:43:42,816 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-24 00:43:42,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-24 00:43:42,886 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 [2022-02-24 00:43:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 417 proven. 91 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-24 00:43:42,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:43:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 423 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-02-24 00:43:43,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173591721] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-24 00:43:43,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-24 00:43:43,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-02-24 00:43:43,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502977759] [2022-02-24 00:43:43,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:43,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 00:43:43,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:43,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 00:43:43,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-24 00:43:43,325 INFO L87 Difference]: Start difference. First operand 3553 states and 5024 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2022-02-24 00:43:45,331 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 [] [2022-02-24 00:43:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:45,636 INFO L93 Difference]: Finished difference Result 7432 states and 10475 transitions. [2022-02-24 00:43:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 00:43:45,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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 291 [2022-02-24 00:43:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:45,643 INFO L225 Difference]: With dead ends: 7432 [2022-02-24 00:43:45,643 INFO L226 Difference]: Without dead ends: 3907 [2022-02-24 00:43:45,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-24 00:43:45,648 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 101 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:45,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 363 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 223 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 00:43:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2022-02-24 00:43:45,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3553. [2022-02-24 00:43:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.4044532130777903) internal successors, (4983), 3548 states have internal predecessors, (4983), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 4987 transitions. [2022-02-24 00:43:45,748 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 4987 transitions. Word has length 291 [2022-02-24 00:43:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:45,748 INFO L470 AbstractCegarLoop]: Abstraction has 3553 states and 4987 transitions. [2022-02-24 00:43:45,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 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) [2022-02-24 00:43:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 4987 transitions. [2022-02-24 00:43:45,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-24 00:43:45,753 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:45,753 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:45,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-24 00:43:45,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-02-24 00:43:45,954 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:45,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1789587530, now seen corresponding path program 1 times [2022-02-24 00:43:45,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:45,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480343932] [2022-02-24 00:43:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-02-24 00:43:46,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:46,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480343932] [2022-02-24 00:43:46,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480343932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:46,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:46,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:46,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898096144] [2022-02-24 00:43:46,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:46,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:46,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:46,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:46,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:46,097 INFO L87 Difference]: Start difference. First operand 3553 states and 4987 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:48,104 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 [] [2022-02-24 00:43:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:48,557 INFO L93 Difference]: Finished difference Result 7115 states and 9981 transitions. [2022-02-24 00:43:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 293 [2022-02-24 00:43:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:48,562 INFO L225 Difference]: With dead ends: 7115 [2022-02-24 00:43:48,562 INFO L226 Difference]: Without dead ends: 3590 [2022-02-24 00:43:48,566 INFO L932 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 [2022-02-24 00:43:48,566 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:48,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 545 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:48,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2022-02-24 00:43:48,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3553. [2022-02-24 00:43:48,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3548 states have (on average 1.4024802705749717) internal successors, (4976), 3548 states have internal predecessors, (4976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 4980 transitions. [2022-02-24 00:43:48,631 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 4980 transitions. Word has length 293 [2022-02-24 00:43:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:48,631 INFO L470 AbstractCegarLoop]: Abstraction has 3553 states and 4980 transitions. [2022-02-24 00:43:48,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 4980 transitions. [2022-02-24 00:43:48,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-24 00:43:48,636 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:48,636 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:48,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 00:43:48,636 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1826158570, now seen corresponding path program 1 times [2022-02-24 00:43:48,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:48,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098370461] [2022-02-24 00:43:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:48,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 372 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-02-24 00:43:48,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:48,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098370461] [2022-02-24 00:43:48,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098370461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:48,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:48,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:48,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682407743] [2022-02-24 00:43:48,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:48,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:48,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:48,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:48,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:48,777 INFO L87 Difference]: Start difference. First operand 3553 states and 4980 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:50,786 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 [] [2022-02-24 00:43:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:51,265 INFO L93 Difference]: Finished difference Result 7486 states and 10471 transitions. [2022-02-24 00:43:51,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:51,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 293 [2022-02-24 00:43:51,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:51,269 INFO L225 Difference]: With dead ends: 7486 [2022-02-24 00:43:51,269 INFO L226 Difference]: Without dead ends: 3961 [2022-02-24 00:43:51,272 INFO L932 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 [2022-02-24 00:43:51,273 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 33 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:51,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 578 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:43:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2022-02-24 00:43:51,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3812. [2022-02-24 00:43:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3812 states, 3807 states have (on average 1.4026792750197006) internal successors, (5340), 3807 states have internal predecessors, (5340), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 5344 transitions. [2022-02-24 00:43:51,353 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 5344 transitions. Word has length 293 [2022-02-24 00:43:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:51,354 INFO L470 AbstractCegarLoop]: Abstraction has 3812 states and 5344 transitions. [2022-02-24 00:43:51,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:51,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 5344 transitions. [2022-02-24 00:43:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-02-24 00:43:51,358 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:51,358 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:51,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 00:43:51,358 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1939734552, now seen corresponding path program 1 times [2022-02-24 00:43:51,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:51,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242999919] [2022-02-24 00:43:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-02-24 00:43:51,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:51,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242999919] [2022-02-24 00:43:51,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242999919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:51,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:51,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:51,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511616310] [2022-02-24 00:43:51,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:51,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:51,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:51,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:51,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:51,483 INFO L87 Difference]: Start difference. First operand 3812 states and 5344 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:52,985 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 [] [2022-02-24 00:43:55,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:57,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:43:59,071 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 [] [2022-02-24 00:43:59,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:43:59,571 INFO L93 Difference]: Finished difference Result 7976 states and 11157 transitions. [2022-02-24 00:43:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:43:59,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 294 [2022-02-24 00:43:59,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:43:59,575 INFO L225 Difference]: With dead ends: 7976 [2022-02-24 00:43:59,576 INFO L226 Difference]: Without dead ends: 4192 [2022-02-24 00:43:59,579 INFO L932 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 [2022-02-24 00:43:59,579 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 30 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-24 00:43:59,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 572 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-24 00:43:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2022-02-24 00:43:59,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4057. [2022-02-24 00:43:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 4052 states have (on average 1.4007897334649555) internal successors, (5676), 4052 states have internal predecessors, (5676), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5680 transitions. [2022-02-24 00:43:59,641 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5680 transitions. Word has length 294 [2022-02-24 00:43:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:43:59,641 INFO L470 AbstractCegarLoop]: Abstraction has 4057 states and 5680 transitions. [2022-02-24 00:43:59,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:43:59,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5680 transitions. [2022-02-24 00:43:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-02-24 00:43:59,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:43:59,646 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:43:59,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 00:43:59,646 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:43:59,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:43:59,646 INFO L85 PathProgramCache]: Analyzing trace with hash 158091750, now seen corresponding path program 1 times [2022-02-24 00:43:59,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:43:59,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947657608] [2022-02-24 00:43:59,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:43:59,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:43:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:43:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:43:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-02-24 00:43:59,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:43:59,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947657608] [2022-02-24 00:43:59,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947657608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:43:59,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:43:59,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:43:59,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119826564] [2022-02-24 00:43:59,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:43:59,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:43:59,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:43:59,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:43:59,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:43:59,798 INFO L87 Difference]: Start difference. First operand 4057 states and 5680 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 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) [2022-02-24 00:44:01,811 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 [] [2022-02-24 00:44:02,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:02,367 INFO L93 Difference]: Finished difference Result 8437 states and 11790 transitions. [2022-02-24 00:44:02,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:02,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 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 295 [2022-02-24 00:44:02,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:02,373 INFO L225 Difference]: With dead ends: 8437 [2022-02-24 00:44:02,373 INFO L226 Difference]: Without dead ends: 4408 [2022-02-24 00:44:02,378 INFO L932 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 [2022-02-24 00:44:02,378 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:02,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 586 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:44:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2022-02-24 00:44:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4233. [2022-02-24 00:44:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.402081362346263) internal successors, (5928), 4228 states have internal predecessors, (5928), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5932 transitions. [2022-02-24 00:44:02,464 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5932 transitions. Word has length 295 [2022-02-24 00:44:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:02,465 INFO L470 AbstractCegarLoop]: Abstraction has 4233 states and 5932 transitions. [2022-02-24 00:44:02,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 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) [2022-02-24 00:44:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5932 transitions. [2022-02-24 00:44:02,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-24 00:44:02,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:02,469 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:02,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-24 00:44:02,469 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1616823882, now seen corresponding path program 1 times [2022-02-24 00:44:02,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:02,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494124641] [2022-02-24 00:44:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-02-24 00:44:02,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:02,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494124641] [2022-02-24 00:44:02,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494124641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:02,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:02,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:02,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480758818] [2022-02-24 00:44:02,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:02,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:02,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:02,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:02,626 INFO L87 Difference]: Start difference. First operand 4233 states and 5932 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:03,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:05,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:07,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:09,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:10,503 INFO L93 Difference]: Finished difference Result 8617 states and 12039 transitions. [2022-02-24 00:44:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-24 00:44:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:10,508 INFO L225 Difference]: With dead ends: 8617 [2022-02-24 00:44:10,508 INFO L226 Difference]: Without dead ends: 4412 [2022-02-24 00:44:10,511 INFO L932 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 [2022-02-24 00:44:10,512 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 40 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:10,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 585 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 517 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 00:44:10,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2022-02-24 00:44:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 4233. [2022-02-24 00:44:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.401135288552507) internal successors, (5924), 4228 states have internal predecessors, (5924), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:10,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5928 transitions. [2022-02-24 00:44:10,602 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5928 transitions. Word has length 301 [2022-02-24 00:44:10,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:10,602 INFO L470 AbstractCegarLoop]: Abstraction has 4233 states and 5928 transitions. [2022-02-24 00:44:10,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5928 transitions. [2022-02-24 00:44:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-24 00:44:10,606 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:10,607 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:10,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-24 00:44:10,607 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:10,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1142797899, now seen corresponding path program 1 times [2022-02-24 00:44:10,607 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:10,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77555270] [2022-02-24 00:44:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:10,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:10,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-02-24 00:44:10,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:10,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77555270] [2022-02-24 00:44:10,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77555270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:10,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:10,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 00:44:10,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263536612] [2022-02-24 00:44:10,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:10,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 00:44:10,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:10,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 00:44:10,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:44:10,839 INFO L87 Difference]: Start difference. First operand 4233 states and 5928 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:12,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:14,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:16,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:18,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-24 00:44:20,918 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 [] [2022-02-24 00:44:22,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:22,915 INFO L93 Difference]: Finished difference Result 9567 states and 13285 transitions. [2022-02-24 00:44:22,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 00:44:22,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-24 00:44:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:22,920 INFO L225 Difference]: With dead ends: 9567 [2022-02-24 00:44:22,920 INFO L226 Difference]: Without dead ends: 5362 [2022-02-24 00:44:22,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-24 00:44:22,923 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 328 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 49 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:22,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 1010 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1181 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-02-24 00:44:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-02-24 00:44:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 4347. [2022-02-24 00:44:22,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4342 states have (on average 1.4007369875633349) internal successors, (6082), 4342 states have internal predecessors, (6082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 6086 transitions. [2022-02-24 00:44:23,002 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 6086 transitions. Word has length 301 [2022-02-24 00:44:23,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:23,002 INFO L470 AbstractCegarLoop]: Abstraction has 4347 states and 6086 transitions. [2022-02-24 00:44:23,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 6086 transitions. [2022-02-24 00:44:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-24 00:44:23,006 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:23,006 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-24 00:44:23,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-24 00:44:23,006 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:23,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:23,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1487713644, now seen corresponding path program 1 times [2022-02-24 00:44:23,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:23,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631839041] [2022-02-24 00:44:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:23,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-02-24 00:44:23,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:23,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631839041] [2022-02-24 00:44:23,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631839041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:23,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:23,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 00:44:23,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291687153] [2022-02-24 00:44:23,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:23,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 00:44:23,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:23,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 00:44:23,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:44:23,260 INFO L87 Difference]: Start difference. First operand 4347 states and 6086 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:25,268 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 [] [2022-02-24 00:44:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:26,912 INFO L93 Difference]: Finished difference Result 11886 states and 16668 transitions. [2022-02-24 00:44:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-24 00:44:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 301 [2022-02-24 00:44:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:26,940 INFO L225 Difference]: With dead ends: 11886 [2022-02-24 00:44:26,940 INFO L226 Difference]: Without dead ends: 7567 [2022-02-24 00:44:26,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-24 00:44:26,947 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 180 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:26,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1207 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-02-24 00:44:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7567 states. [2022-02-24 00:44:27,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7567 to 4768. [2022-02-24 00:44:27,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4763 states have (on average 1.4031072853243753) internal successors, (6683), 4763 states have internal predecessors, (6683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 6687 transitions. [2022-02-24 00:44:27,152 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 6687 transitions. Word has length 301 [2022-02-24 00:44:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:27,152 INFO L470 AbstractCegarLoop]: Abstraction has 4768 states and 6687 transitions. [2022-02-24 00:44:27,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 6687 transitions. [2022-02-24 00:44:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-02-24 00:44:27,158 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:27,158 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-24 00:44:27,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-24 00:44:27,158 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash -335033923, now seen corresponding path program 1 times [2022-02-24 00:44:27,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:27,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421321431] [2022-02-24 00:44:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:27,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-02-24 00:44:27,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:27,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421321431] [2022-02-24 00:44:27,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421321431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:27,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:27,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:27,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760308057] [2022-02-24 00:44:27,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:27,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:27,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:27,301 INFO L87 Difference]: Start difference. First operand 4768 states and 6687 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 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) [2022-02-24 00:44:29,308 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 [] [2022-02-24 00:44:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:29,884 INFO L93 Difference]: Finished difference Result 9678 states and 13538 transitions. [2022-02-24 00:44:29,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:29,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 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 302 [2022-02-24 00:44:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:29,890 INFO L225 Difference]: With dead ends: 9678 [2022-02-24 00:44:29,890 INFO L226 Difference]: Without dead ends: 4918 [2022-02-24 00:44:29,894 INFO L932 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 [2022-02-24 00:44:29,895 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 34 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:29,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:44:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2022-02-24 00:44:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 4452. [2022-02-24 00:44:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 4447 states have (on average 1.402968293231392) internal successors, (6239), 4447 states have internal predecessors, (6239), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6243 transitions. [2022-02-24 00:44:29,986 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6243 transitions. Word has length 302 [2022-02-24 00:44:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:29,986 INFO L470 AbstractCegarLoop]: Abstraction has 4452 states and 6243 transitions. [2022-02-24 00:44:29,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 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) [2022-02-24 00:44:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6243 transitions. [2022-02-24 00:44:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-02-24 00:44:29,990 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:29,990 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:29,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-24 00:44:29,990 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:29,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash 18002548, now seen corresponding path program 1 times [2022-02-24 00:44:29,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:29,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479884521] [2022-02-24 00:44:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:29,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-24 00:44:30,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:30,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479884521] [2022-02-24 00:44:30,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479884521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:30,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:30,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:30,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291029463] [2022-02-24 00:44:30,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:30,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:30,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:30,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:30,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:30,137 INFO L87 Difference]: Start difference. First operand 4452 states and 6243 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,144 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 [] [2022-02-24 00:44:32,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:32,765 INFO L93 Difference]: Finished difference Result 9326 states and 13050 transitions. [2022-02-24 00:44:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 303 [2022-02-24 00:44:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:32,771 INFO L225 Difference]: With dead ends: 9326 [2022-02-24 00:44:32,771 INFO L226 Difference]: Without dead ends: 4902 [2022-02-24 00:44:32,774 INFO L932 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 [2022-02-24 00:44:32,774 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 53 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:32,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 576 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 00:44:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2022-02-24 00:44:32,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 4580. [2022-02-24 00:44:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4575 states have (on average 1.4004371584699453) internal successors, (6407), 4575 states have internal predecessors, (6407), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6411 transitions. [2022-02-24 00:44:32,904 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6411 transitions. Word has length 303 [2022-02-24 00:44:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:32,905 INFO L470 AbstractCegarLoop]: Abstraction has 4580 states and 6411 transitions. [2022-02-24 00:44:32,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6411 transitions. [2022-02-24 00:44:32,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-02-24 00:44:32,909 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:32,909 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:32,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-24 00:44:32,910 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:32,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:32,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1324144570, now seen corresponding path program 1 times [2022-02-24 00:44:32,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:32,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161034086] [2022-02-24 00:44:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-02-24 00:44:33,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:33,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161034086] [2022-02-24 00:44:33,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161034086] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:33,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:33,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:33,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819774107] [2022-02-24 00:44:33,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:33,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:33,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:33,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:33,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:33,094 INFO L87 Difference]: Start difference. First operand 4580 states and 6411 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:35,103 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 [] [2022-02-24 00:44:35,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:35,613 INFO L93 Difference]: Finished difference Result 9438 states and 13194 transitions. [2022-02-24 00:44:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:35,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 318 [2022-02-24 00:44:35,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:35,619 INFO L225 Difference]: With dead ends: 9438 [2022-02-24 00:44:35,619 INFO L226 Difference]: Without dead ends: 4886 [2022-02-24 00:44:35,642 INFO L932 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 [2022-02-24 00:44:35,642 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 36 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:35,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 572 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:35,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2022-02-24 00:44:35,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 4700. [2022-02-24 00:44:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.3987220447284345) internal successors, (6567), 4695 states have internal predecessors, (6567), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:35,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6571 transitions. [2022-02-24 00:44:35,735 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6571 transitions. Word has length 318 [2022-02-24 00:44:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:35,736 INFO L470 AbstractCegarLoop]: Abstraction has 4700 states and 6571 transitions. [2022-02-24 00:44:35,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6571 transitions. [2022-02-24 00:44:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-02-24 00:44:35,740 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:35,740 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:35,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-24 00:44:35,740 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:35,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash 160378302, now seen corresponding path program 1 times [2022-02-24 00:44:35,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:35,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383673478] [2022-02-24 00:44:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:35,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-02-24 00:44:35,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:35,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383673478] [2022-02-24 00:44:35,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383673478] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:35,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:35,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:35,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090548534] [2022-02-24 00:44:35,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:35,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:35,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:35,905 INFO L87 Difference]: Start difference. First operand 4700 states and 6571 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:37,919 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 [] [2022-02-24 00:44:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:38,396 INFO L93 Difference]: Finished difference Result 9542 states and 13322 transitions. [2022-02-24 00:44:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:38,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 319 [2022-02-24 00:44:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:38,401 INFO L225 Difference]: With dead ends: 9542 [2022-02-24 00:44:38,401 INFO L226 Difference]: Without dead ends: 4870 [2022-02-24 00:44:38,405 INFO L932 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 [2022-02-24 00:44:38,405 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 39 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:38,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 570 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:38,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2022-02-24 00:44:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4700. [2022-02-24 00:44:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.3970181043663472) internal successors, (6559), 4695 states have internal predecessors, (6559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6563 transitions. [2022-02-24 00:44:38,514 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6563 transitions. Word has length 319 [2022-02-24 00:44:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:38,514 INFO L470 AbstractCegarLoop]: Abstraction has 4700 states and 6563 transitions. [2022-02-24 00:44:38,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6563 transitions. [2022-02-24 00:44:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-02-24 00:44:38,518 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:38,519 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:38,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-24 00:44:38,519 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash -133490187, now seen corresponding path program 1 times [2022-02-24 00:44:38,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:38,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8807451] [2022-02-24 00:44:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:38,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:38,647 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-02-24 00:44:38,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:38,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8807451] [2022-02-24 00:44:38,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8807451] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:38,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:38,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:38,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783907612] [2022-02-24 00:44:38,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:38,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:38,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:38,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:38,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:38,648 INFO L87 Difference]: Start difference. First operand 4700 states and 6563 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:40,655 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 [] [2022-02-24 00:44:41,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:41,178 INFO L93 Difference]: Finished difference Result 9542 states and 13306 transitions. [2022-02-24 00:44:41,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:41,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 325 [2022-02-24 00:44:41,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:41,184 INFO L225 Difference]: With dead ends: 9542 [2022-02-24 00:44:41,184 INFO L226 Difference]: Without dead ends: 4870 [2022-02-24 00:44:41,188 INFO L932 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 [2022-02-24 00:44:41,188 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 40 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:41,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 568 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2022-02-24 00:44:41,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4700. [2022-02-24 00:44:41,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.39531416400426) internal successors, (6551), 4695 states have internal predecessors, (6551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6555 transitions. [2022-02-24 00:44:41,286 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6555 transitions. Word has length 325 [2022-02-24 00:44:41,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:41,286 INFO L470 AbstractCegarLoop]: Abstraction has 4700 states and 6555 transitions. [2022-02-24 00:44:41,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:41,286 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6555 transitions. [2022-02-24 00:44:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-24 00:44:41,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:41,304 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 00:44:41,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-24 00:44:41,304 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:41,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:41,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2074915050, now seen corresponding path program 1 times [2022-02-24 00:44:41,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:41,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335197358] [2022-02-24 00:44:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:41,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-02-24 00:44:41,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:41,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335197358] [2022-02-24 00:44:41,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335197358] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:41,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:41,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 00:44:41,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114952547] [2022-02-24 00:44:41,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:41,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 00:44:41,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:41,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 00:44:41,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-24 00:44:41,448 INFO L87 Difference]: Start difference. First operand 4700 states and 6555 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:43,455 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 [] [2022-02-24 00:44:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:43,935 INFO L93 Difference]: Finished difference Result 9510 states and 13250 transitions. [2022-02-24 00:44:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 00:44:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-02-24 00:44:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:43,940 INFO L225 Difference]: With dead ends: 9510 [2022-02-24 00:44:43,940 INFO L226 Difference]: Without dead ends: 4838 [2022-02-24 00:44:43,943 INFO L932 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 [2022-02-24 00:44:43,943 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 34 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:43,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 560 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2022-02-24 00:44:44,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4700. [2022-02-24 00:44:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 4695 states have (on average 1.3936102236421726) internal successors, (6543), 4695 states have internal predecessors, (6543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:44,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6547 transitions. [2022-02-24 00:44:44,039 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6547 transitions. Word has length 326 [2022-02-24 00:44:44,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:44,039 INFO L470 AbstractCegarLoop]: Abstraction has 4700 states and 6547 transitions. [2022-02-24 00:44:44,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6547 transitions. [2022-02-24 00:44:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-02-24 00:44:44,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:44,050 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-24 00:44:44,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-24 00:44:44,050 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:44,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1913334922, now seen corresponding path program 1 times [2022-02-24 00:44:44,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:44,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645225922] [2022-02-24 00:44:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:44,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:44,348 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2022-02-24 00:44:44,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:44,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645225922] [2022-02-24 00:44:44,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645225922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:44,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:44,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 00:44:44,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739727173] [2022-02-24 00:44:44,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:44,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 00:44:44,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:44,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 00:44:44,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:44:44,349 INFO L87 Difference]: Start difference. First operand 4700 states and 6547 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:46,360 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 [] [2022-02-24 00:44:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:47,552 INFO L93 Difference]: Finished difference Result 10398 states and 14383 transitions. [2022-02-24 00:44:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-24 00:44:47,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-02-24 00:44:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:47,558 INFO L225 Difference]: With dead ends: 10398 [2022-02-24 00:44:47,558 INFO L226 Difference]: Without dead ends: 5720 [2022-02-24 00:44:47,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-02-24 00:44:47,563 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 292 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:47,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 976 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1099 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-02-24 00:44:47,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-02-24 00:44:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 4709. [2022-02-24 00:44:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4709 states, 4704 states have (on average 1.3934948979591837) internal successors, (6555), 4704 states have internal predecessors, (6555), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4709 states to 4709 states and 6559 transitions. [2022-02-24 00:44:47,669 INFO L78 Accepts]: Start accepts. Automaton has 4709 states and 6559 transitions. Word has length 331 [2022-02-24 00:44:47,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:47,670 INFO L470 AbstractCegarLoop]: Abstraction has 4709 states and 6559 transitions. [2022-02-24 00:44:47,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4709 states and 6559 transitions. [2022-02-24 00:44:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-02-24 00:44:47,674 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:47,674 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-24 00:44:47,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-24 00:44:47,674 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash -680891895, now seen corresponding path program 1 times [2022-02-24 00:44:47,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:47,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720985467] [2022-02-24 00:44:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2022-02-24 00:44:47,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:47,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720985467] [2022-02-24 00:44:47,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720985467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:47,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:47,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 00:44:47,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710013998] [2022-02-24 00:44:47,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:47,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 00:44:47,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:47,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 00:44:47,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 00:44:47,914 INFO L87 Difference]: Start difference. First operand 4709 states and 6559 transitions. Second operand has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:49,923 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 [] [2022-02-24 00:44:51,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:51,458 INFO L93 Difference]: Finished difference Result 11094 states and 15323 transitions. [2022-02-24 00:44:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 00:44:51,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-02-24 00:44:51,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:51,466 INFO L225 Difference]: With dead ends: 11094 [2022-02-24 00:44:51,466 INFO L226 Difference]: Without dead ends: 6413 [2022-02-24 00:44:51,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-24 00:44:51,471 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 433 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:51,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 1132 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1419 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-02-24 00:44:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2022-02-24 00:44:51,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 4706. [2022-02-24 00:44:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 4701 states have (on average 1.3937460114869176) internal successors, (6552), 4701 states have internal predecessors, (6552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:51,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6556 transitions. [2022-02-24 00:44:51,585 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6556 transitions. Word has length 331 [2022-02-24 00:44:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:51,585 INFO L470 AbstractCegarLoop]: Abstraction has 4706 states and 6556 transitions. [2022-02-24 00:44:51,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.0) internal successors, (128), 7 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6556 transitions. [2022-02-24 00:44:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-02-24 00:44:51,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:51,591 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-24 00:44:51,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-24 00:44:51,591 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:51,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1596942315, now seen corresponding path program 1 times [2022-02-24 00:44:51,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:51,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186748408] [2022-02-24 00:44:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:51,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-02-24 00:44:52,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:52,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186748408] [2022-02-24 00:44:52,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186748408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 00:44:52,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 00:44:52,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 00:44:52,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633999700] [2022-02-24 00:44:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 00:44:52,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 00:44:52,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-24 00:44:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 00:44:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-24 00:44:52,013 INFO L87 Difference]: Start difference. First operand 4706 states and 6556 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:54,021 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 [] [2022-02-24 00:44:54,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 00:44:54,609 INFO L93 Difference]: Finished difference Result 9405 states and 13104 transitions. [2022-02-24 00:44:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 00:44:54,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 360 [2022-02-24 00:44:54,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 00:44:54,617 INFO L225 Difference]: With dead ends: 9405 [2022-02-24 00:44:54,617 INFO L226 Difference]: Without dead ends: 4706 [2022-02-24 00:44:54,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-24 00:44:54,624 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-24 00:44:54,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-24 00:44:54,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2022-02-24 00:44:54,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4706. [2022-02-24 00:44:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 4701 states have (on average 1.3935332907891937) internal successors, (6551), 4701 states have internal predecessors, (6551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6555 transitions. [2022-02-24 00:44:54,732 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6555 transitions. Word has length 360 [2022-02-24 00:44:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 00:44:54,733 INFO L470 AbstractCegarLoop]: Abstraction has 4706 states and 6555 transitions. [2022-02-24 00:44:54,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-24 00:44:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6555 transitions. [2022-02-24 00:44:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-02-24 00:44:54,737 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 00:44:54,738 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-02-24 00:44:54,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-24 00:44:54,738 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 00:44:54,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 00:44:54,738 INFO L85 PathProgramCache]: Analyzing trace with hash -870525942, now seen corresponding path program 1 times [2022-02-24 00:44:54,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-24 00:44:54,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261537324] [2022-02-24 00:44:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:54,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 00:44:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 00:44:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 639 proven. 297 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-02-24 00:44:55,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-24 00:44:55,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261537324] [2022-02-24 00:44:55,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261537324] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-24 00:44:55,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614062642] [2022-02-24 00:44:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 00:44:55,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-24 00:44:55,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 00:44:55,763 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) [2022-02-24 00:44:55,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-24 00:44:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 00:44:57,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 137 conjunts are in the unsatisfiable core [2022-02-24 00:44:57,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-24 00:44:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-02-24 00:44:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,458 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:44:57,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-02-24 00:44:57,468 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 [2022-02-24 00:44:57,501 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 [2022-02-24 00:44:57,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,508 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:44:57,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2022-02-24 00:44:57,697 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-02-24 00:44:57,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-02-24 00:44:57,716 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-02-24 00:44:57,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-02-24 00:44:57,735 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-24 00:44:57,735 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 [2022-02-24 00:44:57,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-02-24 00:44:57,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-02-24 00:44:57,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:57,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 54 [2022-02-24 00:44:58,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-02-24 00:44:58,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-02-24 00:44:58,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-02-24 00:44:58,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,438 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-24 00:44:58,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 110 [2022-02-24 00:44:58,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,472 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-24 00:44:58,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 107 [2022-02-24 00:44:58,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,520 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-02-24 00:44:58,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-02-24 00:44:58,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-02-24 00:44:58,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 183 [2022-02-24 00:44:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:44:58,802 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-02-24 00:44:58,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 211 treesize of output 229 [2022-02-24 00:45:01,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 224 [2022-02-24 00:45:01,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,307 INFO L356 Elim1Store]: treesize reduction 156, result has 23.5 percent of original size [2022-02-24 00:45:01,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 260 treesize of output 258 [2022-02-24 00:45:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:01,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 240 [2022-02-24 00:45:04,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,125 INFO L356 Elim1Store]: treesize reduction 34, result has 69.9 percent of original size [2022-02-24 00:45:04,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 257 [2022-02-24 00:45:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-02-24 00:45:04,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,624 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:04,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-02-24 00:45:04,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2022-02-24 00:45:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:04,668 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:04,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 116 [2022-02-24 00:45:05,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,891 INFO L356 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2022-02-24 00:45:05,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2022-02-24 00:45:05,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,907 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-02-24 00:45:05,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-02-24 00:45:05,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 113 [2022-02-24 00:45:05,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:05,998 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:05,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 125 [2022-02-24 00:45:07,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 116 [2022-02-24 00:45:07,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,354 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:07,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 104 [2022-02-24 00:45:07,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,436 INFO L356 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-02-24 00:45:07,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 206 treesize of output 179 [2022-02-24 00:45:07,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2022-02-24 00:45:07,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,474 INFO L356 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-02-24 00:45:07,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 157 [2022-02-24 00:45:07,652 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-02-24 00:45:07,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2022-02-24 00:45:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 153 [2022-02-24 00:45:07,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:07,679 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:07,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193 treesize of output 165 [2022-02-24 00:45:09,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:09,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:09,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:09,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 180 [2022-02-24 00:45:09,214 INFO L356 Elim1Store]: treesize reduction 71, result has 22.8 percent of original size [2022-02-24 00:45:09,214 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 56 treesize of output 37 [2022-02-24 00:45:09,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:09,220 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:09,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 147 [2022-02-24 00:45:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-24 00:45:09,764 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-24 00:45:09,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 77 [2022-02-24 00:45:13,986 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-02-24 00:45:13,986 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 30 treesize of output 10 [2022-02-24 00:45:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 221 proven. 883 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-24 00:45:14,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-24 00:45:14,287 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 1402 treesize of output 1254