/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 01:51:16,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 01:51:16,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 01:51:16,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 01:51:16,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 01:51:16,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 01:51:16,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 01:51:16,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 01:51:16,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 01:51:16,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 01:51:16,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 01:51:16,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 01:51:16,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 01:51:16,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 01:51:16,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 01:51:16,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 01:51:16,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 01:51:16,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 01:51:16,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 01:51:16,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 01:51:16,769 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 01:51:16,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 01:51:16,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 01:51:16,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 01:51:16,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 01:51:16,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-19 01:51:16,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-19 01:51:16,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-19 01:51:16,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-19 01:51:16,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-19 01:51:16,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-19 01:51:16,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-19 01:51:16,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-19 01:51:16,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-19 01:51:16,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-19 01:51:16,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-19 01:51:16,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-19 01:51:16,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-19 01:51:16,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-19 01:51:16,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 01:51:16,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 01:51:16,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 01:51:16,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-19 01:51:16,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 01:51:16,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 01:51:16,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 01:51:16,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 01:51:16,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 01:51:16,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 01:51:16,805 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 01:51:16,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 01:51:16,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 01:51:16,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 01:51:16,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 01:51:16,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 01:51:16,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 01:51:16,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 01:51:16,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 01:51:16,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 01:51:16,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 01:51:16,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 01:51:16,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 01:51:16,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 01:51:16,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 01:51:16,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 01:51:16,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 01:51:16,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 01:51:16,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 01:51:16,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 01:51:16,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-19 01:51:16,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-19 01:51:16,809 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-19 01:51:16,809 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 01:51:16,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 01:51:17,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 01:51:17,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 01:51:17,014 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 01:51:17,014 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 01:51:17,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-19 01:51:17,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51a92efc/abb73c30f9aa447c849258f70402168c/FLAG021d51b21 [2022-03-19 01:51:17,519 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 01:51:17,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-19 01:51:17,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51a92efc/abb73c30f9aa447c849258f70402168c/FLAG021d51b21 [2022-03-19 01:51:17,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51a92efc/abb73c30f9aa447c849258f70402168c [2022-03-19 01:51:17,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 01:51:17,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-19 01:51:17,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 01:51:17,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 01:51:17,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 01:51:17,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:17" (1/1) ... [2022-03-19 01:51:17,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54214ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:17, skipping insertion in model container [2022-03-19 01:51:17,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:17" (1/1) ... [2022-03-19 01:51:17,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 01:51:17,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 01:51:18,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c[78520,78533] [2022-03-19 01:51:18,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 01:51:18,262 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 01:51:18,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c[78520,78533] [2022-03-19 01:51:18,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 01:51:18,386 INFO L208 MainTranslator]: Completed translation [2022-03-19 01:51:18,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18 WrapperNode [2022-03-19 01:51:18,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 01:51:18,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 01:51:18,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 01:51:18,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 01:51:18,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 01:51:18,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 01:51:18,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 01:51:18,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 01:51:18,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (1/1) ... [2022-03-19 01:51:18,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 01:51:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 01:51:18,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 01:51:18,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 01:51:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 01:51:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 01:51:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 01:51:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 01:51:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 01:51:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 01:51:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 01:51:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 01:51:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 01:51:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 01:51:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 01:51:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 01:51:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 01:51:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 01:51:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 01:51:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 01:51:18,756 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 01:51:18,757 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 01:51:19,829 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 01:51:20,170 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 01:51:20,170 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 01:51:20,179 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 01:51:20,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 01:51:20,185 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 01:51:20,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:20 BoogieIcfgContainer [2022-03-19 01:51:20,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 01:51:20,187 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-19 01:51:20,187 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-19 01:51:20,188 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-19 01:51:20,190 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:20" (1/1) ... [2022-03-19 01:51:20,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 01:51:20 BasicIcfg [2022-03-19 01:51:20,219 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-19 01:51:20,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 01:51:20,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 01:51:20,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 01:51:20,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:51:17" (1/4) ... [2022-03-19 01:51:20,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1997f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:20, skipping insertion in model container [2022-03-19 01:51:20,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:18" (2/4) ... [2022-03-19 01:51:20,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1997f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:20, skipping insertion in model container [2022-03-19 01:51:20,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:20" (3/4) ... [2022-03-19 01:51:20,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1997f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 01:51:20, skipping insertion in model container [2022-03-19 01:51:20,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 01:51:20" (4/4) ... [2022-03-19 01:51:20,224 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.cqvasr [2022-03-19 01:51:20,228 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 01:51:20,228 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 01:51:20,257 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 01:51:20,261 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 01:51:20,261 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 01:51:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 01:51:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-19 01:51:20,279 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:20,280 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:20,280 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:20,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:20,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1558367979, now seen corresponding path program 1 times [2022-03-19 01:51:20,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:20,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859985215] [2022-03-19 01:51:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:20,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:20,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:20,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859985215] [2022-03-19 01:51:20,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859985215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:20,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:20,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:20,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825497252] [2022-03-19 01:51:20,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:20,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:20,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:20,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:20,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:20,812 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:24,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:26,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:27,088 INFO L93 Difference]: Finished difference Result 356 states and 604 transitions. [2022-03-19 01:51:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-19 01:51:27,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:27,097 INFO L225 Difference]: With dead ends: 356 [2022-03-19 01:51:27,097 INFO L226 Difference]: Without dead ends: 181 [2022-03-19 01:51:27,099 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:27,101 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 34 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:27,102 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 673 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 435 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 01:51:27,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-19 01:51:27,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 164. [2022-03-19 01:51:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.5849056603773586) internal successors, (252), 159 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 256 transitions. [2022-03-19 01:51:27,133 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 256 transitions. Word has length 51 [2022-03-19 01:51:27,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:27,133 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 256 transitions. [2022-03-19 01:51:27,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 256 transitions. [2022-03-19 01:51:27,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 01:51:27,135 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:27,135 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:27,135 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 01:51:27,135 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:27,136 INFO L85 PathProgramCache]: Analyzing trace with hash -347522956, now seen corresponding path program 1 times [2022-03-19 01:51:27,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:27,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761648871] [2022-03-19 01:51:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:27,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:27,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:27,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761648871] [2022-03-19 01:51:27,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761648871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:27,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:27,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:27,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215101250] [2022-03-19 01:51:27,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:27,285 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:27,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:27,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:27,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:27,286 INFO L87 Difference]: Start difference. First operand 164 states and 256 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:29,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:29,964 INFO L93 Difference]: Finished difference Result 429 states and 676 transitions. [2022-03-19 01:51:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:29,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-19 01:51:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:29,966 INFO L225 Difference]: With dead ends: 429 [2022-03-19 01:51:29,967 INFO L226 Difference]: Without dead ends: 291 [2022-03-19 01:51:29,967 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:29,968 INFO L912 BasicCegarLoop]: 301 mSDtfsCounter, 163 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:29,968 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 732 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 660 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 01:51:29,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-19 01:51:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 180. [2022-03-19 01:51:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.582857142857143) internal successors, (277), 175 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 281 transitions. [2022-03-19 01:51:29,984 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 281 transitions. Word has length 64 [2022-03-19 01:51:29,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:29,984 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 281 transitions. [2022-03-19 01:51:29,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:29,985 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 281 transitions. [2022-03-19 01:51:29,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 01:51:29,988 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:29,989 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:29,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 01:51:29,989 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:29,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:29,989 INFO L85 PathProgramCache]: Analyzing trace with hash -443806277, now seen corresponding path program 1 times [2022-03-19 01:51:29,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:29,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253806319] [2022-03-19 01:51:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:29,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:30,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:30,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253806319] [2022-03-19 01:51:30,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253806319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:30,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:30,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:30,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192419303] [2022-03-19 01:51:30,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:30,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:30,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:30,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:30,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:30,149 INFO L87 Difference]: Start difference. First operand 180 states and 281 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:31,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:34,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:35,074 INFO L93 Difference]: Finished difference Result 350 states and 545 transitions. [2022-03-19 01:51:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:35,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-19 01:51:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:35,075 INFO L225 Difference]: With dead ends: 350 [2022-03-19 01:51:35,076 INFO L226 Difference]: Without dead ends: 196 [2022-03-19 01:51:35,076 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:35,077 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:35,077 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 01:51:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-03-19 01:51:35,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2022-03-19 01:51:35,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.5771428571428572) internal successors, (276), 175 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 280 transitions. [2022-03-19 01:51:35,085 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 280 transitions. Word has length 65 [2022-03-19 01:51:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:35,085 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 280 transitions. [2022-03-19 01:51:35,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:35,085 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 280 transitions. [2022-03-19 01:51:35,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 01:51:35,086 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:35,086 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:35,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 01:51:35,087 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:35,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:35,087 INFO L85 PathProgramCache]: Analyzing trace with hash 518015387, now seen corresponding path program 1 times [2022-03-19 01:51:35,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:35,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654941209] [2022-03-19 01:51:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:35,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:35,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:35,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:35,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654941209] [2022-03-19 01:51:35,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654941209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:35,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:35,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072067679] [2022-03-19 01:51:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:35,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:35,200 INFO L87 Difference]: Start difference. First operand 180 states and 280 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:37,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:37,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:37,618 INFO L93 Difference]: Finished difference Result 350 states and 544 transitions. [2022-03-19 01:51:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:37,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-19 01:51:37,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:37,619 INFO L225 Difference]: With dead ends: 350 [2022-03-19 01:51:37,619 INFO L226 Difference]: Without dead ends: 196 [2022-03-19 01:51:37,620 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:37,621 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 26 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:37,621 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 551 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 01:51:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-03-19 01:51:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2022-03-19 01:51:37,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.5714285714285714) internal successors, (275), 175 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) [2022-03-19 01:51:37,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 279 transitions. [2022-03-19 01:51:37,628 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 279 transitions. Word has length 65 [2022-03-19 01:51:37,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:37,628 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 279 transitions. [2022-03-19 01:51:37,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:37,628 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 279 transitions. [2022-03-19 01:51:37,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 01:51:37,629 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:37,629 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:37,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 01:51:37,630 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:37,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:37,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2105726299, now seen corresponding path program 1 times [2022-03-19 01:51:37,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:37,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505514634] [2022-03-19 01:51:37,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:37,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:37,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:37,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505514634] [2022-03-19 01:51:37,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505514634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:37,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:37,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:37,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381346190] [2022-03-19 01:51:37,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:37,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:37,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:37,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:37,770 INFO L87 Difference]: Start difference. First operand 180 states and 279 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:39,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:41,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:43,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:44,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:44,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:44,826 INFO L93 Difference]: Finished difference Result 461 states and 725 transitions. [2022-03-19 01:51:44,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:44,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-19 01:51:44,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:44,827 INFO L225 Difference]: With dead ends: 461 [2022-03-19 01:51:44,827 INFO L226 Difference]: Without dead ends: 307 [2022-03-19 01:51:44,828 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:44,829 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:44,829 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-19 01:51:44,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-19 01:51:44,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 197. [2022-03-19 01:51:44,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5729166666666667) internal successors, (302), 192 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:44,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 306 transitions. [2022-03-19 01:51:44,836 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 306 transitions. Word has length 65 [2022-03-19 01:51:44,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:44,836 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 306 transitions. [2022-03-19 01:51:44,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:44,837 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 306 transitions. [2022-03-19 01:51:44,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 01:51:44,837 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:44,838 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:44,838 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 01:51:44,838 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash 173308475, now seen corresponding path program 1 times [2022-03-19 01:51:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:44,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587270615] [2022-03-19 01:51:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:44,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:44,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587270615] [2022-03-19 01:51:44,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587270615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:44,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:44,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:44,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455287871] [2022-03-19 01:51:44,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:44,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:44,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:44,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:44,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:44,928 INFO L87 Difference]: Start difference. First operand 197 states and 306 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:46,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:47,291 INFO L93 Difference]: Finished difference Result 381 states and 595 transitions. [2022-03-19 01:51:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:47,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-19 01:51:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:47,292 INFO L225 Difference]: With dead ends: 381 [2022-03-19 01:51:47,292 INFO L226 Difference]: Without dead ends: 210 [2022-03-19 01:51:47,293 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:47,294 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 18 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:47,294 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 557 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 01:51:47,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-19 01:51:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 197. [2022-03-19 01:51:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5677083333333333) internal successors, (301), 192 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:47,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 305 transitions. [2022-03-19 01:51:47,300 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 305 transitions. Word has length 65 [2022-03-19 01:51:47,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:47,300 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 305 transitions. [2022-03-19 01:51:47,301 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:47,301 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 305 transitions. [2022-03-19 01:51:47,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 01:51:47,302 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:47,302 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:47,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 01:51:47,302 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:47,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1737888044, now seen corresponding path program 1 times [2022-03-19 01:51:47,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:47,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448736296] [2022-03-19 01:51:47,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:47,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:47,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:47,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448736296] [2022-03-19 01:51:47,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448736296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:47,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:47,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:47,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364108716] [2022-03-19 01:51:47,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:47,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:47,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:47,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:47,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:47,420 INFO L87 Difference]: Start difference. First operand 197 states and 305 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:49,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:51,589 INFO L93 Difference]: Finished difference Result 381 states and 594 transitions. [2022-03-19 01:51:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:51,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-19 01:51:51,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:51,590 INFO L225 Difference]: With dead ends: 381 [2022-03-19 01:51:51,590 INFO L226 Difference]: Without dead ends: 210 [2022-03-19 01:51:51,591 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:51,591 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 22 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:51,591 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-19 01:51:51,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-19 01:51:51,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 197. [2022-03-19 01:51:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.5625) internal successors, (300), 192 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:51,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 304 transitions. [2022-03-19 01:51:51,596 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 304 transitions. Word has length 66 [2022-03-19 01:51:51,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:51,597 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 304 transitions. [2022-03-19 01:51:51,597 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 304 transitions. [2022-03-19 01:51:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-19 01:51:51,597 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:51,597 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:51,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 01:51:51,598 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash 926906423, now seen corresponding path program 1 times [2022-03-19 01:51:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:51,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736063479] [2022-03-19 01:51:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:51,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:51,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:51,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736063479] [2022-03-19 01:51:51,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736063479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:51,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:51,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245261878] [2022-03-19 01:51:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:51,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:51,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:51,684 INFO L87 Difference]: Start difference. First operand 197 states and 304 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:52,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:54,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:56,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:57,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:51:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:51:58,312 INFO L93 Difference]: Finished difference Result 478 states and 749 transitions. [2022-03-19 01:51:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:51:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-19 01:51:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:51:58,316 INFO L225 Difference]: With dead ends: 478 [2022-03-19 01:51:58,316 INFO L226 Difference]: Without dead ends: 307 [2022-03-19 01:51:58,317 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:51:58,317 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 164 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:51:58,317 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-19 01:51:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-03-19 01:51:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 197. [2022-03-19 01:51:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 192 states have (on average 1.546875) internal successors, (297), 192 states have internal predecessors, (297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 301 transitions. [2022-03-19 01:51:58,330 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 301 transitions. Word has length 67 [2022-03-19 01:51:58,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:51:58,330 INFO L478 AbstractCegarLoop]: Abstraction has 197 states and 301 transitions. [2022-03-19 01:51:58,331 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:51:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 301 transitions. [2022-03-19 01:51:58,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-19 01:51:58,331 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:51:58,331 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:51:58,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 01:51:58,332 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:51:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:51:58,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1481099262, now seen corresponding path program 1 times [2022-03-19 01:51:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:51:58,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825974901] [2022-03-19 01:51:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:51:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:51:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:51:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:51:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:51:58,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:51:58,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825974901] [2022-03-19 01:51:58,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825974901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:51:58,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:51:58,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:51:58,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938616422] [2022-03-19 01:51:58,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:51:58,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:51:58,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:51:58,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:51:58,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:51:58,430 INFO L87 Difference]: Start difference. First operand 197 states and 301 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:00,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:00,823 INFO L93 Difference]: Finished difference Result 409 states and 632 transitions. [2022-03-19 01:52:00,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:00,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-19 01:52:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:00,825 INFO L225 Difference]: With dead ends: 409 [2022-03-19 01:52:00,825 INFO L226 Difference]: Without dead ends: 238 [2022-03-19 01:52:00,825 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:00,826 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 31 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:00,826 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 601 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 01:52:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-03-19 01:52:00,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2022-03-19 01:52:00,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5514018691588785) internal successors, (332), 214 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 336 transitions. [2022-03-19 01:52:00,831 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 336 transitions. Word has length 68 [2022-03-19 01:52:00,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:00,831 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 336 transitions. [2022-03-19 01:52:00,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 336 transitions. [2022-03-19 01:52:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-19 01:52:00,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:00,832 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:00,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 01:52:00,832 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash 544932049, now seen corresponding path program 1 times [2022-03-19 01:52:00,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:00,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279121670] [2022-03-19 01:52:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:00,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:52:00,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:00,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279121670] [2022-03-19 01:52:00,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279121670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:00,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:00,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:00,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404873418] [2022-03-19 01:52:00,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:00,939 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:00,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:00,939 INFO L87 Difference]: Start difference. First operand 219 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:03,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:06,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:06,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:06,765 INFO L93 Difference]: Finished difference Result 522 states and 814 transitions. [2022-03-19 01:52:06,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:06,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-19 01:52:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:06,767 INFO L225 Difference]: With dead ends: 522 [2022-03-19 01:52:06,767 INFO L226 Difference]: Without dead ends: 329 [2022-03-19 01:52:06,767 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:06,768 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:06,768 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 01:52:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-03-19 01:52:06,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 219. [2022-03-19 01:52:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5327102803738317) internal successors, (328), 214 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 332 transitions. [2022-03-19 01:52:06,773 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 332 transitions. Word has length 68 [2022-03-19 01:52:06,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:06,773 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 332 transitions. [2022-03-19 01:52:06,773 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:06,774 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 332 transitions. [2022-03-19 01:52:06,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-19 01:52:06,774 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:06,774 INFO L500 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] [2022-03-19 01:52:06,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 01:52:06,775 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1819938328, now seen corresponding path program 1 times [2022-03-19 01:52:06,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:06,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362654028] [2022-03-19 01:52:06,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:06,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:06,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 01:52:06,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:06,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362654028] [2022-03-19 01:52:06,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362654028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:06,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:06,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:06,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271151997] [2022-03-19 01:52:06,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:06,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:06,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:06,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:06,889 INFO L87 Difference]: Start difference. First operand 219 states and 332 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:09,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:10,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:10,054 INFO L93 Difference]: Finished difference Result 425 states and 650 transitions. [2022-03-19 01:52:10,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:10,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-19 01:52:10,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:10,056 INFO L225 Difference]: With dead ends: 425 [2022-03-19 01:52:10,056 INFO L226 Difference]: Without dead ends: 232 [2022-03-19 01:52:10,057 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:10,058 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 20 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:10,058 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 636 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-19 01:52:10,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-03-19 01:52:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2022-03-19 01:52:10,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.52803738317757) internal successors, (327), 214 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 331 transitions. [2022-03-19 01:52:10,064 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 331 transitions. Word has length 82 [2022-03-19 01:52:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:10,064 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 331 transitions. [2022-03-19 01:52:10,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 331 transitions. [2022-03-19 01:52:10,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-19 01:52:10,065 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:10,065 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:10,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 01:52:10,066 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:10,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:10,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1202823576, now seen corresponding path program 1 times [2022-03-19 01:52:10,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:10,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611732852] [2022-03-19 01:52:10,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:10,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:52:10,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:10,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611732852] [2022-03-19 01:52:10,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611732852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:10,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:10,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:10,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162515844] [2022-03-19 01:52:10,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:10,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:10,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:10,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:10,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:10,166 INFO L87 Difference]: Start difference. First operand 219 states and 331 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:13,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:15,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:15,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:15,394 INFO L93 Difference]: Finished difference Result 430 states and 656 transitions. [2022-03-19 01:52:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:15,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-19 01:52:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:15,395 INFO L225 Difference]: With dead ends: 430 [2022-03-19 01:52:15,395 INFO L226 Difference]: Without dead ends: 237 [2022-03-19 01:52:15,396 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:15,396 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 33 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:15,397 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 575 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-19 01:52:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-03-19 01:52:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 219. [2022-03-19 01:52:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 214 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions. [2022-03-19 01:52:15,401 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 82 [2022-03-19 01:52:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:15,401 INFO L478 AbstractCegarLoop]: Abstraction has 219 states and 330 transitions. [2022-03-19 01:52:15,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions. [2022-03-19 01:52:15,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-19 01:52:15,402 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:15,402 INFO L500 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] [2022-03-19 01:52:15,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 01:52:15,402 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:15,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:15,403 INFO L85 PathProgramCache]: Analyzing trace with hash -660948, now seen corresponding path program 1 times [2022-03-19 01:52:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:15,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625996386] [2022-03-19 01:52:15,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:15,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-19 01:52:15,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:15,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625996386] [2022-03-19 01:52:15,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625996386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:15,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:15,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 01:52:15,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539369208] [2022-03-19 01:52:15,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:15,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 01:52:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:15,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 01:52:15,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:15,502 INFO L87 Difference]: Start difference. First operand 219 states and 330 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:19,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:21,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:21,103 INFO L93 Difference]: Finished difference Result 421 states and 642 transitions. [2022-03-19 01:52:21,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 01:52:21,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 83 [2022-03-19 01:52:21,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:21,104 INFO L225 Difference]: With dead ends: 421 [2022-03-19 01:52:21,104 INFO L226 Difference]: Without dead ends: 228 [2022-03-19 01:52:21,104 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-19 01:52:21,105 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:21,105 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 01:52:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-03-19 01:52:21,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-03-19 01:52:21,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5112107623318385) internal successors, (337), 223 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 341 transitions. [2022-03-19 01:52:21,110 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 341 transitions. Word has length 83 [2022-03-19 01:52:21,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:21,110 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 341 transitions. [2022-03-19 01:52:21,110 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:21,110 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 341 transitions. [2022-03-19 01:52:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-19 01:52:21,112 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:21,112 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:21,112 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 01:52:21,112 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:21,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:21,113 INFO L85 PathProgramCache]: Analyzing trace with hash -248960436, now seen corresponding path program 1 times [2022-03-19 01:52:21,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:21,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92904797] [2022-03-19 01:52:21,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:21,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:21,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:52:21,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:21,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92904797] [2022-03-19 01:52:21,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92904797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:21,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:21,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:21,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333655957] [2022-03-19 01:52:21,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:21,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:21,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:21,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:21,207 INFO L87 Difference]: Start difference. First operand 228 states and 341 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:23,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:25,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:27,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:28,207 INFO L93 Difference]: Finished difference Result 549 states and 836 transitions. [2022-03-19 01:52:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:28,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-19 01:52:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:28,209 INFO L225 Difference]: With dead ends: 549 [2022-03-19 01:52:28,209 INFO L226 Difference]: Without dead ends: 347 [2022-03-19 01:52:28,209 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:28,210 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 165 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:28,210 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 408 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 496 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-19 01:52:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-19 01:52:28,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 228. [2022-03-19 01:52:28,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.4977578475336324) internal successors, (334), 223 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 338 transitions. [2022-03-19 01:52:28,215 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 338 transitions. Word has length 83 [2022-03-19 01:52:28,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:28,216 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 338 transitions. [2022-03-19 01:52:28,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:28,216 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 338 transitions. [2022-03-19 01:52:28,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 01:52:28,216 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:28,216 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:28,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 01:52:28,217 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:28,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:28,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1365043283, now seen corresponding path program 1 times [2022-03-19 01:52:28,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:28,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503179527] [2022-03-19 01:52:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:28,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 01:52:28,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:28,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503179527] [2022-03-19 01:52:28,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503179527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:28,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:28,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:28,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513200871] [2022-03-19 01:52:28,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:28,301 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:28,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:28,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:28,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:28,301 INFO L87 Difference]: Start difference. First operand 228 states and 338 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:31,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:33,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:34,071 INFO L93 Difference]: Finished difference Result 539 states and 817 transitions. [2022-03-19 01:52:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:34,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-19 01:52:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:34,073 INFO L225 Difference]: With dead ends: 539 [2022-03-19 01:52:34,073 INFO L226 Difference]: Without dead ends: 337 [2022-03-19 01:52:34,073 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:34,074 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 162 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:34,074 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 410 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 01:52:34,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-19 01:52:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 228. [2022-03-19 01:52:34,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.484304932735426) internal successors, (331), 223 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 335 transitions. [2022-03-19 01:52:34,078 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 335 transitions. Word has length 84 [2022-03-19 01:52:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:34,079 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 335 transitions. [2022-03-19 01:52:34,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 335 transitions. [2022-03-19 01:52:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-19 01:52:34,079 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:34,080 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:34,080 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 01:52:34,080 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2060411777, now seen corresponding path program 1 times [2022-03-19 01:52:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:34,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548474372] [2022-03-19 01:52:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:34,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:52:34,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:34,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548474372] [2022-03-19 01:52:34,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548474372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:34,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:34,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:34,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876833643] [2022-03-19 01:52:34,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:34,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:34,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:34,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:34,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:34,170 INFO L87 Difference]: Start difference. First operand 228 states and 335 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:36,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:37,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:39,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:41,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:42,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:42,220 INFO L93 Difference]: Finished difference Result 542 states and 811 transitions. [2022-03-19 01:52:42,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:42,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-19 01:52:42,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:42,221 INFO L225 Difference]: With dead ends: 542 [2022-03-19 01:52:42,221 INFO L226 Difference]: Without dead ends: 340 [2022-03-19 01:52:42,222 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:42,222 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 104 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:42,223 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 579 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 567 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-03-19 01:52:42,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-03-19 01:52:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 269. [2022-03-19 01:52:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.5113636363636365) internal successors, (399), 264 states have internal predecessors, (399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 403 transitions. [2022-03-19 01:52:42,228 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 403 transitions. Word has length 90 [2022-03-19 01:52:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:42,229 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 403 transitions. [2022-03-19 01:52:42,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 403 transitions. [2022-03-19 01:52:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-19 01:52:42,229 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:42,229 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:42,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 01:52:42,230 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2110482272, now seen corresponding path program 1 times [2022-03-19 01:52:42,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:42,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452754847] [2022-03-19 01:52:42,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:42,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:52:42,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:42,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452754847] [2022-03-19 01:52:42,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452754847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:42,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:42,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:42,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017677500] [2022-03-19 01:52:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:42,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:42,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:42,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:42,331 INFO L87 Difference]: Start difference. First operand 269 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:43,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:45,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:47,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:49,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:49,018 INFO L93 Difference]: Finished difference Result 639 states and 971 transitions. [2022-03-19 01:52:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:49,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-19 01:52:49,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:49,019 INFO L225 Difference]: With dead ends: 639 [2022-03-19 01:52:49,019 INFO L226 Difference]: Without dead ends: 396 [2022-03-19 01:52:49,020 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:49,020 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 135 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:49,021 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 412 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 01:52:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-03-19 01:52:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 268. [2022-03-19 01:52:49,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.5133079847908746) internal successors, (398), 263 states have internal predecessors, (398), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:49,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 402 transitions. [2022-03-19 01:52:49,030 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 402 transitions. Word has length 90 [2022-03-19 01:52:49,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:49,031 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 402 transitions. [2022-03-19 01:52:49,031 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:49,031 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 402 transitions. [2022-03-19 01:52:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 01:52:49,031 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:49,032 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:49,032 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 01:52:49,032 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1958297485, now seen corresponding path program 1 times [2022-03-19 01:52:49,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:49,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301004948] [2022-03-19 01:52:49,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:49,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:52:49,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:49,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301004948] [2022-03-19 01:52:49,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301004948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:49,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:49,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:49,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165978342] [2022-03-19 01:52:49,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:49,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:49,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:49,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:49,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:49,141 INFO L87 Difference]: Start difference. First operand 268 states and 402 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:51,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:53,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:55,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:52:56,054 INFO L93 Difference]: Finished difference Result 619 states and 945 transitions. [2022-03-19 01:52:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:52:56,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-03-19 01:52:56,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:52:56,055 INFO L225 Difference]: With dead ends: 619 [2022-03-19 01:52:56,055 INFO L226 Difference]: Without dead ends: 377 [2022-03-19 01:52:56,056 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:52:56,056 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 134 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 60 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:52:56,056 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 438 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 508 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 01:52:56,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-19 01:52:56,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 291. [2022-03-19 01:52:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.548951048951049) internal successors, (443), 286 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 447 transitions. [2022-03-19 01:52:56,062 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 447 transitions. Word has length 91 [2022-03-19 01:52:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:52:56,062 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 447 transitions. [2022-03-19 01:52:56,062 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:56,062 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 447 transitions. [2022-03-19 01:52:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 01:52:56,063 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:52:56,063 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:52:56,063 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 01:52:56,063 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:52:56,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:52:56,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1677366494, now seen corresponding path program 1 times [2022-03-19 01:52:56,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:52:56,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764410822] [2022-03-19 01:52:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:52:56,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:52:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:56,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:52:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:52:56,201 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:52:56,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:52:56,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764410822] [2022-03-19 01:52:56,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764410822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:52:56,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:52:56,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:52:56,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615517956] [2022-03-19 01:52:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:52:56,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:52:56,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:52:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:52:56,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:52:56,203 INFO L87 Difference]: Start difference. First operand 291 states and 447 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:52:57,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:52:59,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:01,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:03,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:04,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:04,370 INFO L93 Difference]: Finished difference Result 718 states and 1119 transitions. [2022-03-19 01:53:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:04,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-19 01:53:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:04,372 INFO L225 Difference]: With dead ends: 718 [2022-03-19 01:53:04,372 INFO L226 Difference]: Without dead ends: 453 [2022-03-19 01:53:04,373 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:04,373 INFO L912 BasicCegarLoop]: 160 mSDtfsCounter, 140 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 47 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:04,374 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 450 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 503 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-19 01:53:04,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-19 01:53:04,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 355. [2022-03-19 01:53:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.562857142857143) internal successors, (547), 350 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:04,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 551 transitions. [2022-03-19 01:53:04,381 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 551 transitions. Word has length 119 [2022-03-19 01:53:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:04,381 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 551 transitions. [2022-03-19 01:53:04,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 551 transitions. [2022-03-19 01:53:04,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-19 01:53:04,382 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:04,382 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:04,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 01:53:04,382 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:04,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash -493221854, now seen corresponding path program 1 times [2022-03-19 01:53:04,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:04,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241737053] [2022-03-19 01:53:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:04,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-19 01:53:04,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:04,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241737053] [2022-03-19 01:53:04,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241737053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:04,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:04,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417787220] [2022-03-19 01:53:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:04,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:04,482 INFO L87 Difference]: Start difference. First operand 355 states and 551 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:05,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:06,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:08,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:10,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:11,171 INFO L93 Difference]: Finished difference Result 691 states and 1082 transitions. [2022-03-19 01:53:11,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:11,171 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 124 [2022-03-19 01:53:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:11,173 INFO L225 Difference]: With dead ends: 691 [2022-03-19 01:53:11,173 INFO L226 Difference]: Without dead ends: 362 [2022-03-19 01:53:11,173 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:11,174 INFO L912 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:11,174 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 395 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 01:53:11,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-19 01:53:11,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-03-19 01:53:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.56) internal successors, (546), 350 states have internal predecessors, (546), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 550 transitions. [2022-03-19 01:53:11,182 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 550 transitions. Word has length 124 [2022-03-19 01:53:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:11,182 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 550 transitions. [2022-03-19 01:53:11,182 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 550 transitions. [2022-03-19 01:53:11,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-19 01:53:11,183 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:11,184 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:11,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 01:53:11,184 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:11,184 INFO L85 PathProgramCache]: Analyzing trace with hash 423811832, now seen corresponding path program 1 times [2022-03-19 01:53:11,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:11,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264087182] [2022-03-19 01:53:11,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:11,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:11,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:11,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264087182] [2022-03-19 01:53:11,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264087182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:11,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:11,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:11,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733104124] [2022-03-19 01:53:11,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:11,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:11,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:11,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:11,275 INFO L87 Difference]: Start difference. First operand 355 states and 550 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:12,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:14,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:16,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:18,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:19,420 INFO L93 Difference]: Finished difference Result 784 states and 1221 transitions. [2022-03-19 01:53:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:19,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-19 01:53:19,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:19,421 INFO L225 Difference]: With dead ends: 784 [2022-03-19 01:53:19,421 INFO L226 Difference]: Without dead ends: 455 [2022-03-19 01:53:19,422 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:19,422 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 91 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:19,423 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 547 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-19 01:53:19,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-03-19 01:53:19,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 394. [2022-03-19 01:53:19,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5655526992287918) internal successors, (609), 389 states have internal predecessors, (609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:19,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 613 transitions. [2022-03-19 01:53:19,429 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 613 transitions. Word has length 125 [2022-03-19 01:53:19,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:19,429 INFO L478 AbstractCegarLoop]: Abstraction has 394 states and 613 transitions. [2022-03-19 01:53:19,430 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:19,430 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 613 transitions. [2022-03-19 01:53:19,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-19 01:53:19,430 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:19,430 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:19,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 01:53:19,431 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:19,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash 437344633, now seen corresponding path program 1 times [2022-03-19 01:53:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:19,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203591438] [2022-03-19 01:53:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:19,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:19,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203591438] [2022-03-19 01:53:19,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203591438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:19,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:19,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:19,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771456963] [2022-03-19 01:53:19,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:19,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:19,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:19,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:19,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:19,521 INFO L87 Difference]: Start difference. First operand 394 states and 613 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:21,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:23,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:24,136 INFO L93 Difference]: Finished difference Result 888 states and 1387 transitions. [2022-03-19 01:53:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:24,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-19 01:53:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:24,138 INFO L225 Difference]: With dead ends: 888 [2022-03-19 01:53:24,138 INFO L226 Difference]: Without dead ends: 520 [2022-03-19 01:53:24,139 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:24,139 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 136 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:24,139 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-19 01:53:24,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-03-19 01:53:24,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 392. [2022-03-19 01:53:24,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.565891472868217) internal successors, (606), 387 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:24,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 610 transitions. [2022-03-19 01:53:24,146 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 610 transitions. Word has length 125 [2022-03-19 01:53:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:24,146 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 610 transitions. [2022-03-19 01:53:24,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:24,146 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 610 transitions. [2022-03-19 01:53:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-19 01:53:24,147 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:24,147 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:24,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 01:53:24,147 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:24,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash 295665995, now seen corresponding path program 1 times [2022-03-19 01:53:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:24,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841618126] [2022-03-19 01:53:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:24,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:24,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:24,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:24,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841618126] [2022-03-19 01:53:24,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841618126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:24,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:24,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:24,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110038161] [2022-03-19 01:53:24,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:24,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:24,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:24,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:24,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:24,236 INFO L87 Difference]: Start difference. First operand 392 states and 610 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:27,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:29,304 INFO L93 Difference]: Finished difference Result 844 states and 1315 transitions. [2022-03-19 01:53:29,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:29,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-19 01:53:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:29,306 INFO L225 Difference]: With dead ends: 844 [2022-03-19 01:53:29,306 INFO L226 Difference]: Without dead ends: 478 [2022-03-19 01:53:29,307 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:29,307 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 135 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:29,310 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 410 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-19 01:53:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-03-19 01:53:29,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 392. [2022-03-19 01:53:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5607235142118863) internal successors, (604), 387 states have internal predecessors, (604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:29,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 608 transitions. [2022-03-19 01:53:29,317 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 608 transitions. Word has length 126 [2022-03-19 01:53:29,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:29,317 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 608 transitions. [2022-03-19 01:53:29,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:29,317 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 608 transitions. [2022-03-19 01:53:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-19 01:53:29,318 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:29,318 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:29,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 01:53:29,318 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:29,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1786561130, now seen corresponding path program 1 times [2022-03-19 01:53:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:29,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029694875] [2022-03-19 01:53:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:29,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:29,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:29,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029694875] [2022-03-19 01:53:29,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029694875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:29,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:29,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590758654] [2022-03-19 01:53:29,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:29,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:29,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:29,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:29,422 INFO L87 Difference]: Start difference. First operand 392 states and 608 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:31,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:33,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:35,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:36,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:36,124 INFO L93 Difference]: Finished difference Result 884 states and 1375 transitions. [2022-03-19 01:53:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:36,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-19 01:53:36,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:36,126 INFO L225 Difference]: With dead ends: 884 [2022-03-19 01:53:36,126 INFO L226 Difference]: Without dead ends: 518 [2022-03-19 01:53:36,127 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:36,128 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 128 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:36,128 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 411 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 01:53:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-19 01:53:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 435. [2022-03-19 01:53:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.5651162790697675) internal successors, (673), 430 states have internal predecessors, (673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 677 transitions. [2022-03-19 01:53:36,135 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 677 transitions. Word has length 133 [2022-03-19 01:53:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:36,136 INFO L478 AbstractCegarLoop]: Abstraction has 435 states and 677 transitions. [2022-03-19 01:53:36,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:36,136 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 677 transitions. [2022-03-19 01:53:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-19 01:53:36,137 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:36,137 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:36,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 01:53:36,137 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:36,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1004226087, now seen corresponding path program 1 times [2022-03-19 01:53:36,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:36,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723957680] [2022-03-19 01:53:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:36,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 01:53:36,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:36,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723957680] [2022-03-19 01:53:36,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723957680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:36,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:36,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:36,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139433498] [2022-03-19 01:53:36,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:36,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:36,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:36,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:36,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:36,232 INFO L87 Difference]: Start difference. First operand 435 states and 677 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:37,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:39,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:41,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:43,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:44,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:44,229 INFO L93 Difference]: Finished difference Result 932 states and 1454 transitions. [2022-03-19 01:53:44,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:44,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-19 01:53:44,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:44,231 INFO L225 Difference]: With dead ends: 932 [2022-03-19 01:53:44,231 INFO L226 Difference]: Without dead ends: 523 [2022-03-19 01:53:44,232 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:44,232 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 68 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:44,232 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 547 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 518 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-19 01:53:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-19 01:53:44,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 478. [2022-03-19 01:53:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5644820295983086) internal successors, (740), 473 states have internal predecessors, (740), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 744 transitions. [2022-03-19 01:53:44,239 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 744 transitions. Word has length 134 [2022-03-19 01:53:44,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:44,239 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 744 transitions. [2022-03-19 01:53:44,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 744 transitions. [2022-03-19 01:53:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-19 01:53:44,240 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:44,241 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:44,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 01:53:44,241 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:44,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2122544954, now seen corresponding path program 1 times [2022-03-19 01:53:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:44,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002423311] [2022-03-19 01:53:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:44,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 01:53:44,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:44,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002423311] [2022-03-19 01:53:44,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002423311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:44,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:44,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:44,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642141070] [2022-03-19 01:53:44,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:44,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:44,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:44,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:44,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:44,353 INFO L87 Difference]: Start difference. First operand 478 states and 744 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:47,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:49,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:50,010 INFO L93 Difference]: Finished difference Result 977 states and 1525 transitions. [2022-03-19 01:53:50,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-19 01:53:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:50,012 INFO L225 Difference]: With dead ends: 977 [2022-03-19 01:53:50,012 INFO L226 Difference]: Without dead ends: 525 [2022-03-19 01:53:50,013 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:50,013 INFO L912 BasicCegarLoop]: 266 mSDtfsCounter, 35 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:50,013 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 667 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 01:53:50,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-03-19 01:53:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 502. [2022-03-19 01:53:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5613682092555332) internal successors, (776), 497 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 780 transitions. [2022-03-19 01:53:50,021 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 780 transitions. Word has length 134 [2022-03-19 01:53:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:50,021 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 780 transitions. [2022-03-19 01:53:50,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:50,021 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 780 transitions. [2022-03-19 01:53:50,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-19 01:53:50,022 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:50,022 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:50,022 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 01:53:50,023 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:50,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 111454881, now seen corresponding path program 1 times [2022-03-19 01:53:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:50,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596219756] [2022-03-19 01:53:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:50,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-19 01:53:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:50,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596219756] [2022-03-19 01:53:50,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596219756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:50,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:50,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962927185] [2022-03-19 01:53:50,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:50,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:50,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:50,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:50,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:50,120 INFO L87 Difference]: Start difference. First operand 502 states and 780 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:52,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:52,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:52,551 INFO L93 Difference]: Finished difference Result 1054 states and 1643 transitions. [2022-03-19 01:53:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:52,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-19 01:53:52,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:52,553 INFO L225 Difference]: With dead ends: 1054 [2022-03-19 01:53:52,553 INFO L226 Difference]: Without dead ends: 578 [2022-03-19 01:53:52,554 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:52,555 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 155 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:52,555 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 458 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 01:53:52,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-03-19 01:53:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 502. [2022-03-19 01:53:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5432595573440644) internal successors, (767), 497 states have internal predecessors, (767), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 771 transitions. [2022-03-19 01:53:52,562 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 771 transitions. Word has length 146 [2022-03-19 01:53:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:52,563 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 771 transitions. [2022-03-19 01:53:52,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 771 transitions. [2022-03-19 01:53:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-19 01:53:52,564 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:52,564 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:52,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 01:53:52,564 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:52,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:52,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1380090645, now seen corresponding path program 1 times [2022-03-19 01:53:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:52,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238161089] [2022-03-19 01:53:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:52,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 01:53:52,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238161089] [2022-03-19 01:53:52,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238161089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:52,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:52,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:52,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579427913] [2022-03-19 01:53:52,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:52,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:52,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:52,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:52,648 INFO L87 Difference]: Start difference. First operand 502 states and 771 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:55,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:53:57,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:53:57,269 INFO L93 Difference]: Finished difference Result 1013 states and 1562 transitions. [2022-03-19 01:53:57,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:53:57,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-19 01:53:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:53:57,271 INFO L225 Difference]: With dead ends: 1013 [2022-03-19 01:53:57,271 INFO L226 Difference]: Without dead ends: 537 [2022-03-19 01:53:57,271 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:53:57,272 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 71 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-19 01:53:57,272 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 563 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-19 01:53:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-03-19 01:53:57,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 502. [2022-03-19 01:53:57,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.5412474849094568) internal successors, (766), 497 states have internal predecessors, (766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 770 transitions. [2022-03-19 01:53:57,279 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 770 transitions. Word has length 146 [2022-03-19 01:53:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:53:57,279 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 770 transitions. [2022-03-19 01:53:57,279 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 770 transitions. [2022-03-19 01:53:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 01:53:57,280 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:53:57,280 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:53:57,281 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 01:53:57,281 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:53:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:53:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1302552011, now seen corresponding path program 1 times [2022-03-19 01:53:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:53:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762679111] [2022-03-19 01:53:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:53:57,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:53:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:57,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:53:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:53:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 01:53:57,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:53:57,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762679111] [2022-03-19 01:53:57,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762679111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:53:57,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:53:57,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:53:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128410917] [2022-03-19 01:53:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:53:57,372 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:53:57,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:53:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:53:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:53:57,373 INFO L87 Difference]: Start difference. First operand 502 states and 770 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:53:59,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:01,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:02,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:03,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:03,284 INFO L93 Difference]: Finished difference Result 1011 states and 1558 transitions. [2022-03-19 01:54:03,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:03,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-19 01:54:03,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:03,285 INFO L225 Difference]: With dead ends: 1011 [2022-03-19 01:54:03,285 INFO L226 Difference]: Without dead ends: 535 [2022-03-19 01:54:03,286 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:03,286 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 68 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:03,287 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 565 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 01:54:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-19 01:54:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 502. [2022-03-19 01:54:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.539235412474849) internal successors, (765), 497 states have internal predecessors, (765), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 769 transitions. [2022-03-19 01:54:03,294 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 769 transitions. Word has length 147 [2022-03-19 01:54:03,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:03,294 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 769 transitions. [2022-03-19 01:54:03,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 769 transitions. [2022-03-19 01:54:03,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-19 01:54:03,295 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:03,295 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:03,295 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 01:54:03,295 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:03,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2058960563, now seen corresponding path program 1 times [2022-03-19 01:54:03,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:03,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081360026] [2022-03-19 01:54:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:54:03,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:03,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081360026] [2022-03-19 01:54:03,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081360026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:03,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:03,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:03,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410465848] [2022-03-19 01:54:03,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:03,380 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:03,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:03,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:03,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:03,381 INFO L87 Difference]: Start difference. First operand 502 states and 769 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) [2022-03-19 01:54:06,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:08,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:09,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:09,914 INFO L93 Difference]: Finished difference Result 1053 states and 1620 transitions. [2022-03-19 01:54:09,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:09,914 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 148 [2022-03-19 01:54:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:09,916 INFO L225 Difference]: With dead ends: 1053 [2022-03-19 01:54:09,916 INFO L226 Difference]: Without dead ends: 577 [2022-03-19 01:54:09,916 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:09,917 INFO L912 BasicCegarLoop]: 165 mSDtfsCounter, 147 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:09,917 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 460 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 01:54:09,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-03-19 01:54:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 502. [2022-03-19 01:54:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 497 states have (on average 1.523138832997988) internal successors, (757), 497 states have internal predecessors, (757), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 761 transitions. [2022-03-19 01:54:09,924 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 761 transitions. Word has length 148 [2022-03-19 01:54:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:09,924 INFO L478 AbstractCegarLoop]: Abstraction has 502 states and 761 transitions. [2022-03-19 01:54:09,924 INFO L479 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) [2022-03-19 01:54:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 761 transitions. [2022-03-19 01:54:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-19 01:54:09,925 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:09,925 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:09,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 01:54:09,926 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:09,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:09,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1663867333, now seen corresponding path program 1 times [2022-03-19 01:54:09,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:09,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538076773] [2022-03-19 01:54:09,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:09,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 01:54:10,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:10,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538076773] [2022-03-19 01:54:10,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538076773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:10,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:10,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:10,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123687330] [2022-03-19 01:54:10,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:10,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:10,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:10,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:10,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:10,037 INFO L87 Difference]: Start difference. First operand 502 states and 761 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:12,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:14,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:16,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:17,271 INFO L93 Difference]: Finished difference Result 1096 states and 1671 transitions. [2022-03-19 01:54:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:17,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-19 01:54:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:17,273 INFO L225 Difference]: With dead ends: 1096 [2022-03-19 01:54:17,273 INFO L226 Difference]: Without dead ends: 620 [2022-03-19 01:54:17,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:17,274 INFO L912 BasicCegarLoop]: 165 mSDtfsCounter, 136 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:17,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 460 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 496 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-19 01:54:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-03-19 01:54:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 530. [2022-03-19 01:54:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.5104761904761905) internal successors, (793), 525 states have internal predecessors, (793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 797 transitions. [2022-03-19 01:54:17,282 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 797 transitions. Word has length 150 [2022-03-19 01:54:17,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:17,282 INFO L478 AbstractCegarLoop]: Abstraction has 530 states and 797 transitions. [2022-03-19 01:54:17,282 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:17,282 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 797 transitions. [2022-03-19 01:54:17,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-19 01:54:17,283 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:17,283 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:17,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 01:54:17,283 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:17,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:17,283 INFO L85 PathProgramCache]: Analyzing trace with hash 227374365, now seen corresponding path program 1 times [2022-03-19 01:54:17,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:17,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496290227] [2022-03-19 01:54:17,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:17,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:17,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 01:54:17,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:17,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496290227] [2022-03-19 01:54:17,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496290227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:17,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:17,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:17,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530177448] [2022-03-19 01:54:17,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:17,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:17,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:17,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:17,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:17,370 INFO L87 Difference]: Start difference. First operand 530 states and 797 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:18,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:20,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:22,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:24,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:24,842 INFO L93 Difference]: Finished difference Result 1109 states and 1676 transitions. [2022-03-19 01:54:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-19 01:54:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:24,844 INFO L225 Difference]: With dead ends: 1109 [2022-03-19 01:54:24,844 INFO L226 Difference]: Without dead ends: 605 [2022-03-19 01:54:24,845 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:24,845 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 135 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:24,845 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 432 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-19 01:54:24,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-03-19 01:54:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 530. [2022-03-19 01:54:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.497142857142857) internal successors, (786), 525 states have internal predecessors, (786), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 790 transitions. [2022-03-19 01:54:24,853 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 790 transitions. Word has length 151 [2022-03-19 01:54:24,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:24,853 INFO L478 AbstractCegarLoop]: Abstraction has 530 states and 790 transitions. [2022-03-19 01:54:24,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 790 transitions. [2022-03-19 01:54:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-19 01:54:24,854 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:24,854 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:24,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 01:54:24,854 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:24,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:24,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1919200453, now seen corresponding path program 1 times [2022-03-19 01:54:24,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:24,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731757448] [2022-03-19 01:54:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:24,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:24,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:54:24,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:24,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731757448] [2022-03-19 01:54:24,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731757448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:24,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:24,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:24,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973198512] [2022-03-19 01:54:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:24,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:24,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:24,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:24,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:24,964 INFO L87 Difference]: Start difference. First operand 530 states and 790 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:27,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:30,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:30,670 INFO L93 Difference]: Finished difference Result 1058 states and 1584 transitions. [2022-03-19 01:54:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-19 01:54:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:30,672 INFO L225 Difference]: With dead ends: 1058 [2022-03-19 01:54:30,672 INFO L226 Difference]: Without dead ends: 554 [2022-03-19 01:54:30,673 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:30,673 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 62 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:30,673 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 01:54:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-03-19 01:54:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 530. [2022-03-19 01:54:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 525 states have (on average 1.4952380952380953) internal successors, (785), 525 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 789 transitions. [2022-03-19 01:54:30,680 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 789 transitions. Word has length 156 [2022-03-19 01:54:30,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:30,681 INFO L478 AbstractCegarLoop]: Abstraction has 530 states and 789 transitions. [2022-03-19 01:54:30,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:30,681 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 789 transitions. [2022-03-19 01:54:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-19 01:54:30,682 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:30,682 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:30,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 01:54:30,682 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash 932617764, now seen corresponding path program 1 times [2022-03-19 01:54:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:30,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49276032] [2022-03-19 01:54:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:30,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-19 01:54:30,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:30,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49276032] [2022-03-19 01:54:30,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49276032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:30,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:30,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:30,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856771688] [2022-03-19 01:54:30,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:30,765 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:30,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:30,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:30,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:30,766 INFO L87 Difference]: Start difference. First operand 530 states and 789 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 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) [2022-03-19 01:54:31,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:33,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:33,972 INFO L93 Difference]: Finished difference Result 1533 states and 2301 transitions. [2022-03-19 01:54:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:54:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 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 156 [2022-03-19 01:54:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:33,975 INFO L225 Difference]: With dead ends: 1533 [2022-03-19 01:54:33,975 INFO L226 Difference]: Without dead ends: 1029 [2022-03-19 01:54:33,975 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:33,976 INFO L912 BasicCegarLoop]: 262 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:33,976 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 456 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-19 01:54:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-03-19 01:54:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1027. [2022-03-19 01:54:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 1022 states have (on average 1.4833659491193738) internal successors, (1516), 1022 states have internal predecessors, (1516), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1520 transitions. [2022-03-19 01:54:33,988 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1520 transitions. Word has length 156 [2022-03-19 01:54:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:33,988 INFO L478 AbstractCegarLoop]: Abstraction has 1027 states and 1520 transitions. [2022-03-19 01:54:33,988 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 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) [2022-03-19 01:54:33,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1520 transitions. [2022-03-19 01:54:33,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-19 01:54:33,989 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:33,990 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:33,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 01:54:33,990 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:33,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:33,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2014426051, now seen corresponding path program 1 times [2022-03-19 01:54:33,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:33,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792907488] [2022-03-19 01:54:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:33,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-19 01:54:34,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:34,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792907488] [2022-03-19 01:54:34,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792907488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:34,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:34,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:34,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816444858] [2022-03-19 01:54:34,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:34,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:34,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:34,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:34,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:34,065 INFO L87 Difference]: Start difference. First operand 1027 states and 1520 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:35,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:36,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:37,893 INFO L93 Difference]: Finished difference Result 2055 states and 3047 transitions. [2022-03-19 01:54:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:54:37,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-19 01:54:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:37,896 INFO L225 Difference]: With dead ends: 2055 [2022-03-19 01:54:37,896 INFO L226 Difference]: Without dead ends: 1054 [2022-03-19 01:54:37,897 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:37,897 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:37,898 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-19 01:54:37,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-03-19 01:54:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2022-03-19 01:54:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.478551000953289) internal successors, (1551), 1049 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1555 transitions. [2022-03-19 01:54:37,912 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1555 transitions. Word has length 156 [2022-03-19 01:54:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:37,912 INFO L478 AbstractCegarLoop]: Abstraction has 1054 states and 1555 transitions. [2022-03-19 01:54:37,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1555 transitions. [2022-03-19 01:54:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-19 01:54:37,914 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:37,914 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:37,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 01:54:37,914 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:37,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:37,915 INFO L85 PathProgramCache]: Analyzing trace with hash 204522466, now seen corresponding path program 1 times [2022-03-19 01:54:37,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:37,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725505073] [2022-03-19 01:54:37,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:37,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-19 01:54:37,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:37,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725505073] [2022-03-19 01:54:37,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725505073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:37,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:37,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:37,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934273881] [2022-03-19 01:54:37,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:37,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:37,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:37,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:37,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:37,989 INFO L87 Difference]: Start difference. First operand 1054 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:39,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:41,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:43,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:44,206 INFO L93 Difference]: Finished difference Result 2084 states and 3083 transitions. [2022-03-19 01:54:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:54:44,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-19 01:54:44,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:44,209 INFO L225 Difference]: With dead ends: 2084 [2022-03-19 01:54:44,209 INFO L226 Difference]: Without dead ends: 1056 [2022-03-19 01:54:44,210 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:44,210 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:44,211 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 278 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 01:54:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-03-19 01:54:44,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2022-03-19 01:54:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.477640342530923) internal successors, (1553), 1051 states have internal predecessors, (1553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:44,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1557 transitions. [2022-03-19 01:54:44,225 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1557 transitions. Word has length 156 [2022-03-19 01:54:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:44,225 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1557 transitions. [2022-03-19 01:54:44,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:44,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1557 transitions. [2022-03-19 01:54:44,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 01:54:44,227 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:44,227 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:44,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-19 01:54:44,228 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:44,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash -212926458, now seen corresponding path program 1 times [2022-03-19 01:54:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:44,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133537397] [2022-03-19 01:54:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:44,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 01:54:44,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:44,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133537397] [2022-03-19 01:54:44,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133537397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:44,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:44,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:44,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822247831] [2022-03-19 01:54:44,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:44,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:44,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:44,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:44,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:44,320 INFO L87 Difference]: Start difference. First operand 1056 states and 1557 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:45,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:47,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:49,389 INFO L93 Difference]: Finished difference Result 2132 states and 3144 transitions. [2022-03-19 01:54:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:49,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-19 01:54:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:49,398 INFO L225 Difference]: With dead ends: 2132 [2022-03-19 01:54:49,398 INFO L226 Difference]: Without dead ends: 1104 [2022-03-19 01:54:49,399 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:49,400 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 50 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:49,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 603 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-19 01:54:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-03-19 01:54:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1056. [2022-03-19 01:54:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4757373929590867) internal successors, (1551), 1051 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1555 transitions. [2022-03-19 01:54:49,417 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1555 transitions. Word has length 158 [2022-03-19 01:54:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:49,417 INFO L478 AbstractCegarLoop]: Abstraction has 1056 states and 1555 transitions. [2022-03-19 01:54:49,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1555 transitions. [2022-03-19 01:54:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 01:54:49,418 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:49,419 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:49,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-19 01:54:49,419 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash -879309571, now seen corresponding path program 1 times [2022-03-19 01:54:49,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:49,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520956638] [2022-03-19 01:54:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:49,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 01:54:49,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:49,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520956638] [2022-03-19 01:54:49,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520956638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:49,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:49,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 01:54:49,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109822707] [2022-03-19 01:54:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:49,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 01:54:49,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:49,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 01:54:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:49,505 INFO L87 Difference]: Start difference. First operand 1056 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:50,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:53,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:53,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:53,502 INFO L93 Difference]: Finished difference Result 2583 states and 3830 transitions. [2022-03-19 01:54:53,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 01:54:53,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-19 01:54:53,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:53,507 INFO L225 Difference]: With dead ends: 2583 [2022-03-19 01:54:53,507 INFO L226 Difference]: Without dead ends: 1555 [2022-03-19 01:54:53,508 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 01:54:53,509 INFO L912 BasicCegarLoop]: 402 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:53,509 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 596 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-19 01:54:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2022-03-19 01:54:53,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1548. [2022-03-19 01:54:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.475048606610499) internal successors, (2276), 1543 states have internal predecessors, (2276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2280 transitions. [2022-03-19 01:54:53,530 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2280 transitions. Word has length 158 [2022-03-19 01:54:53,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:53,531 INFO L478 AbstractCegarLoop]: Abstraction has 1548 states and 2280 transitions. [2022-03-19 01:54:53,531 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:53,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2280 transitions. [2022-03-19 01:54:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-19 01:54:53,533 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:53,533 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:53,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-19 01:54:53,533 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:53,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:53,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1161711826, now seen corresponding path program 1 times [2022-03-19 01:54:53,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:53,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342171154] [2022-03-19 01:54:53,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:53,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 01:54:53,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:53,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342171154] [2022-03-19 01:54:53,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342171154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:53,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:53,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:53,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966267601] [2022-03-19 01:54:53,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:53,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:53,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:53,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:53,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:53,627 INFO L87 Difference]: Start difference. First operand 1548 states and 2280 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:56,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:58,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:54:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:54:58,979 INFO L93 Difference]: Finished difference Result 3131 states and 4608 transitions. [2022-03-19 01:54:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:54:58,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-19 01:54:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:54:58,983 INFO L225 Difference]: With dead ends: 3131 [2022-03-19 01:54:58,983 INFO L226 Difference]: Without dead ends: 1611 [2022-03-19 01:54:58,985 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:54:58,985 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 45 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:54:58,985 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 603 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 01:54:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-03-19 01:54:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1548. [2022-03-19 01:54:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1543 states have (on average 1.4731043421905379) internal successors, (2273), 1543 states have internal predecessors, (2273), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2277 transitions. [2022-03-19 01:54:59,004 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2277 transitions. Word has length 159 [2022-03-19 01:54:59,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:54:59,004 INFO L478 AbstractCegarLoop]: Abstraction has 1548 states and 2277 transitions. [2022-03-19 01:54:59,004 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:54:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2277 transitions. [2022-03-19 01:54:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-19 01:54:59,006 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:54:59,006 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:54:59,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-19 01:54:59,006 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:54:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:54:59,006 INFO L85 PathProgramCache]: Analyzing trace with hash -364993837, now seen corresponding path program 1 times [2022-03-19 01:54:59,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:54:59,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096004689] [2022-03-19 01:54:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:54:59,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:54:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:54:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:54:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-19 01:54:59,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:54:59,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096004689] [2022-03-19 01:54:59,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096004689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:54:59,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:54:59,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:54:59,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713204341] [2022-03-19 01:54:59,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:54:59,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:54:59,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:54:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:54:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:54:59,093 INFO L87 Difference]: Start difference. First operand 1548 states and 2277 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:01,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:03,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:03,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:03,810 INFO L93 Difference]: Finished difference Result 3188 states and 4693 transitions. [2022-03-19 01:55:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:03,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-19 01:55:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:03,814 INFO L225 Difference]: With dead ends: 3188 [2022-03-19 01:55:03,814 INFO L226 Difference]: Without dead ends: 1668 [2022-03-19 01:55:03,816 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:03,816 INFO L912 BasicCegarLoop]: 260 mSDtfsCounter, 30 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:03,816 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 655 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-19 01:55:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2022-03-19 01:55:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1626. [2022-03-19 01:55:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.472547809993831) internal successors, (2387), 1621 states have internal predecessors, (2387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2391 transitions. [2022-03-19 01:55:03,836 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2391 transitions. Word has length 159 [2022-03-19 01:55:03,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:03,836 INFO L478 AbstractCegarLoop]: Abstraction has 1626 states and 2391 transitions. [2022-03-19 01:55:03,836 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2391 transitions. [2022-03-19 01:55:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-19 01:55:03,838 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:03,838 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:55:03,838 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-19 01:55:03,838 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:03,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:03,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1942483546, now seen corresponding path program 1 times [2022-03-19 01:55:03,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:03,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294220736] [2022-03-19 01:55:03,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:03,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:55:03,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:03,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294220736] [2022-03-19 01:55:03,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294220736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:03,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:03,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:55:03,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866017124] [2022-03-19 01:55:03,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:03,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:55:03,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:55:03,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:55:03,954 INFO L87 Difference]: Start difference. First operand 1626 states and 2391 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:05,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:06,384 INFO L93 Difference]: Finished difference Result 3435 states and 5038 transitions. [2022-03-19 01:55:06,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:06,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-03-19 01:55:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:06,389 INFO L225 Difference]: With dead ends: 3435 [2022-03-19 01:55:06,389 INFO L226 Difference]: Without dead ends: 1837 [2022-03-19 01:55:06,391 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:06,391 INFO L912 BasicCegarLoop]: 153 mSDtfsCounter, 137 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:06,391 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 436 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 01:55:06,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2022-03-19 01:55:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1626. [2022-03-19 01:55:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.4577421344848858) internal successors, (2363), 1621 states have internal predecessors, (2363), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2367 transitions. [2022-03-19 01:55:06,413 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2367 transitions. Word has length 165 [2022-03-19 01:55:06,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:06,413 INFO L478 AbstractCegarLoop]: Abstraction has 1626 states and 2367 transitions. [2022-03-19 01:55:06,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:06,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2367 transitions. [2022-03-19 01:55:06,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-19 01:55:06,415 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:06,415 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:55:06,415 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-19 01:55:06,415 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash -544777350, now seen corresponding path program 1 times [2022-03-19 01:55:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:06,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027960955] [2022-03-19 01:55:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:06,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:55:06,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:06,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027960955] [2022-03-19 01:55:06,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027960955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:06,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:06,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:55:06,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408817998] [2022-03-19 01:55:06,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:06,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:55:06,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:06,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:55:06,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:55:06,518 INFO L87 Difference]: Start difference. First operand 1626 states and 2367 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:09,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:11,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:12,057 INFO L93 Difference]: Finished difference Result 3281 states and 4773 transitions. [2022-03-19 01:55:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:12,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-19 01:55:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:12,061 INFO L225 Difference]: With dead ends: 3281 [2022-03-19 01:55:12,062 INFO L226 Difference]: Without dead ends: 1683 [2022-03-19 01:55:12,063 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:12,063 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 51 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:12,064 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 609 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-19 01:55:12,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-03-19 01:55:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1626. [2022-03-19 01:55:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1621 states have (on average 1.4558914250462678) internal successors, (2360), 1621 states have internal predecessors, (2360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2364 transitions. [2022-03-19 01:55:12,084 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2364 transitions. Word has length 166 [2022-03-19 01:55:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:12,084 INFO L478 AbstractCegarLoop]: Abstraction has 1626 states and 2364 transitions. [2022-03-19 01:55:12,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2364 transitions. [2022-03-19 01:55:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-03-19 01:55:12,086 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:12,086 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:55:12,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-19 01:55:12,086 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -214165331, now seen corresponding path program 1 times [2022-03-19 01:55:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:12,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245883470] [2022-03-19 01:55:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:12,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:55:12,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245883470] [2022-03-19 01:55:12,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245883470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:12,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:12,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:55:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053803803] [2022-03-19 01:55:12,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:12,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:55:12,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:12,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:55:12,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:55:12,183 INFO L87 Difference]: Start difference. First operand 1626 states and 2364 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:13,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:16,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:16,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:16,498 INFO L93 Difference]: Finished difference Result 3564 states and 5179 transitions. [2022-03-19 01:55:16,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:16,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-03-19 01:55:16,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:16,503 INFO L225 Difference]: With dead ends: 3564 [2022-03-19 01:55:16,503 INFO L226 Difference]: Without dead ends: 1966 [2022-03-19 01:55:16,505 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:16,505 INFO L912 BasicCegarLoop]: 151 mSDtfsCounter, 130 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:16,505 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 432 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-19 01:55:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-03-19 01:55:16,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1725. [2022-03-19 01:55:16,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4505813953488371) internal successors, (2495), 1720 states have internal predecessors, (2495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2499 transitions. [2022-03-19 01:55:16,532 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2499 transitions. Word has length 169 [2022-03-19 01:55:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:16,532 INFO L478 AbstractCegarLoop]: Abstraction has 1725 states and 2499 transitions. [2022-03-19 01:55:16,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2499 transitions. [2022-03-19 01:55:16,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-03-19 01:55:16,534 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:16,534 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:55:16,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-19 01:55:16,535 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:16,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash -497117630, now seen corresponding path program 1 times [2022-03-19 01:55:16,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:16,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784670847] [2022-03-19 01:55:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:16,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-19 01:55:16,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:16,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784670847] [2022-03-19 01:55:16,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784670847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:16,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:16,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 01:55:16,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137151036] [2022-03-19 01:55:16,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:16,627 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 01:55:16,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:16,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 01:55:16,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 01:55:16,627 INFO L87 Difference]: Start difference. First operand 1725 states and 2499 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) [2022-03-19 01:55:18,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:21,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:21,378 INFO L93 Difference]: Finished difference Result 3461 states and 5014 transitions. [2022-03-19 01:55:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 01:55:21,378 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 170 [2022-03-19 01:55:21,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:21,391 INFO L225 Difference]: With dead ends: 3461 [2022-03-19 01:55:21,392 INFO L226 Difference]: Without dead ends: 1764 [2022-03-19 01:55:21,393 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 01:55:21,394 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 35 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:21,394 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 609 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-19 01:55:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-03-19 01:55:21,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1725. [2022-03-19 01:55:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4488372093023256) internal successors, (2492), 1720 states have internal predecessors, (2492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2496 transitions. [2022-03-19 01:55:21,418 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2496 transitions. Word has length 170 [2022-03-19 01:55:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:21,418 INFO L478 AbstractCegarLoop]: Abstraction has 1725 states and 2496 transitions. [2022-03-19 01:55:21,418 INFO L479 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) [2022-03-19 01:55:21,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2496 transitions. [2022-03-19 01:55:21,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-19 01:55:21,421 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:21,421 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:55:21,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-19 01:55:21,421 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:21,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1610206959, now seen corresponding path program 1 times [2022-03-19 01:55:21,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:21,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193136861] [2022-03-19 01:55:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:21,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-19 01:55:21,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:21,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193136861] [2022-03-19 01:55:21,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193136861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 01:55:21,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 01:55:21,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 01:55:21,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590526127] [2022-03-19 01:55:21,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 01:55:21,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 01:55:21,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 01:55:21,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 01:55:21,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-19 01:55:21,771 INFO L87 Difference]: Start difference. First operand 1725 states and 2496 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:23,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:25,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:27,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:29,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:31,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 01:55:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 01:55:32,041 INFO L93 Difference]: Finished difference Result 3443 states and 4984 transitions. [2022-03-19 01:55:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 01:55:32,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 180 [2022-03-19 01:55:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 01:55:32,045 INFO L225 Difference]: With dead ends: 3443 [2022-03-19 01:55:32,045 INFO L226 Difference]: Without dead ends: 1725 [2022-03-19 01:55:32,047 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-19 01:55:32,047 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-03-19 01:55:32,047 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 952 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-03-19 01:55:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-03-19 01:55:32,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2022-03-19 01:55:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1720 states have (on average 1.4482558139534885) internal successors, (2491), 1720 states have internal predecessors, (2491), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2495 transitions. [2022-03-19 01:55:32,082 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2495 transitions. Word has length 180 [2022-03-19 01:55:32,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 01:55:32,082 INFO L478 AbstractCegarLoop]: Abstraction has 1725 states and 2495 transitions. [2022-03-19 01:55:32,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 01:55:32,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2495 transitions. [2022-03-19 01:55:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-19 01:55:32,085 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 01:55:32,085 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 01:55:32,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-19 01:55:32,085 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 01:55:32,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 01:55:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2025533776, now seen corresponding path program 1 times [2022-03-19 01:55:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 01:55:32,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457826019] [2022-03-19 01:55:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 01:55:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:32,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 01:55:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 01:55:33,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 01:55:33,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457826019] [2022-03-19 01:55:33,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457826019] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 01:55:33,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071658834] [2022-03-19 01:55:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 01:55:33,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 01:55:33,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 01:55:33,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 01:55:33,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 01:55:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 01:55:33,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 152 conjunts are in the unsatisfiable core [2022-03-19 01:55:33,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 01:55:33,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:33,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 01:55:34,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 20 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5362 treesize of output 788