/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:33:59,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:33:59,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:33:59,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:33:59,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:33:59,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:33:59,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:33:59,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:33:59,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:33:59,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:33:59,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:33:59,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:33:59,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:33:59,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:33:59,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:33:59,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:33:59,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:33:59,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:33:59,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:33:59,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:33:59,773 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:33:59,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:33:59,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:33:59,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:33:59,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:33:59,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:33:59,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:33:59,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:33:59,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:33:59,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:33:59,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:33:59,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:33:59,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:33:59,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:33:59,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:33:59,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:33:59,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:33:59,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:33:59,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:33:59,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:33:59,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:33:59,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:33:59,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:33:59,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:33:59,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:33:59,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:33:59,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:33:59,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:33:59,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:33:59,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:33:59,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:33:59,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:33:59,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:33:59,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:33:59,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:33:59,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:33:59,805 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:33:59,805 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:34:00,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:34:00,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:34:00,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:34:00,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:34:00,035 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:34:00,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-20 07:34:00,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf3a8be5/bc23a303cf7947d492fa70e059851368/FLAGeb18282fe [2022-03-20 07:34:00,583 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:34:00,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-20 07:34:00,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf3a8be5/bc23a303cf7947d492fa70e059851368/FLAGeb18282fe [2022-03-20 07:34:01,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cf3a8be5/bc23a303cf7947d492fa70e059851368 [2022-03-20 07:34:01,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:34:01,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:34:01,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:34:01,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:34:01,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:34:01,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3dedf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01, skipping insertion in model container [2022-03-20 07:34:01,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:34:01,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:34:01,437 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.07.i.cil-1.c[74369,74382] [2022-03-20 07:34:01,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:34:01,453 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:34:01,552 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.07.i.cil-1.c[74369,74382] [2022-03-20 07:34:01,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:34:01,574 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:34:01,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01 WrapperNode [2022-03-20 07:34:01,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:34:01,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:34:01,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:34:01,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:34:01,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:34:01,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:34:01,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:34:01,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:34:01,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (1/1) ... [2022-03-20 07:34:01,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:34:01,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:34:01,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 07:34:01,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 07:34:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:34:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:34:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:34:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:34:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:34:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:34:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:34:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:34:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:34:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:34:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:34:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:34:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:34:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:34:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:34:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:34:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:34:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:34:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:34:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:34:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:34:01,899 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:34:01,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:34:02,594 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:34:02,910 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:34:02,911 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:34:02,920 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:34:02,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:34:02,926 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:34:02,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:34:02 BoogieIcfgContainer [2022-03-20 07:34:02,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:34:02,928 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:34:02,928 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:34:02,929 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:34:02,931 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:34:02" (1/1) ... [2022-03-20 07:34:02,932 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:34:02,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:34:02 BasicIcfg [2022-03-20 07:34:02,978 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:34:02,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:34:02,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:34:02,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:34:02,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:34:01" (1/4) ... [2022-03-20 07:34:02,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2327b9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:34:02, skipping insertion in model container [2022-03-20 07:34:02,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:34:01" (2/4) ... [2022-03-20 07:34:02,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2327b9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:34:02, skipping insertion in model container [2022-03-20 07:34:02,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:34:02" (3/4) ... [2022-03-20 07:34:02,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2327b9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:34:02, skipping insertion in model container [2022-03-20 07:34:02,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:34:02" (4/4) ... [2022-03-20 07:34:02,995 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-1.cJordan [2022-03-20 07:34:02,999 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:34:02,999 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:34:03,055 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:34:03,060 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 07:34:03,060 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:34:03,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 07:34:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 07:34:03,078 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:03,079 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:03,079 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:03,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:03,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-03-20 07:34:03,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:03,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544463940] [2022-03-20 07:34:03,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:03,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:03,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:03,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:03,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:03,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544463940] [2022-03-20 07:34:03,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544463940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:03,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:03,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:03,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530238894] [2022-03-20 07:34:03,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:03,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:03,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:03,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:03,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:03,532 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:06,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:06,007 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-03-20 07:34:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:06,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 07:34:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:06,016 INFO L225 Difference]: With dead ends: 191 [2022-03-20 07:34:06,016 INFO L226 Difference]: Without dead ends: 170 [2022-03-20 07:34:06,018 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:06,025 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:06,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-03-20 07:34:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-03-20 07:34:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-03-20 07:34:06,090 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-03-20 07:34:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:06,091 INFO L478 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-03-20 07:34:06,091 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-03-20 07:34:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-03-20 07:34:06,096 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:06,097 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:06,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:34:06,097 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:06,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1972024210, now seen corresponding path program 1 times [2022-03-20 07:34:06,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:06,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394003556] [2022-03-20 07:34:06,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:06,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:06,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:06,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394003556] [2022-03-20 07:34:06,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394003556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:06,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:06,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:06,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143977522] [2022-03-20 07:34:06,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:06,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:06,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:06,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:06,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:06,317 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:09,180 INFO L93 Difference]: Finished difference Result 270 states and 414 transitions. [2022-03-20 07:34:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-03-20 07:34:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:09,182 INFO L225 Difference]: With dead ends: 270 [2022-03-20 07:34:09,182 INFO L226 Difference]: Without dead ends: 270 [2022-03-20 07:34:09,182 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:09,183 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 143 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:09,183 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 626 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 07:34:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-03-20 07:34:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 169. [2022-03-20 07:34:09,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:09,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-03-20 07:34:09,198 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-03-20 07:34:09,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:09,198 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-03-20 07:34:09,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-03-20 07:34:09,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:34:09,206 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:09,206 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:09,206 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:34:09,206 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:09,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:09,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1748095558, now seen corresponding path program 1 times [2022-03-20 07:34:09,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:09,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269342411] [2022-03-20 07:34:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:09,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:09,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:09,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:09,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269342411] [2022-03-20 07:34:09,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269342411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:09,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:09,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:09,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018129232] [2022-03-20 07:34:09,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:09,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:09,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:09,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:09,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:09,364 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:13,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:13,833 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-03-20 07:34:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:13,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-20 07:34:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:13,834 INFO L225 Difference]: With dead ends: 185 [2022-03-20 07:34:13,834 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 07:34:13,835 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:13,835 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:13,836 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:34:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 07:34:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-20 07:34:13,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-03-20 07:34:13,841 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-03-20 07:34:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:13,842 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-03-20 07:34:13,842 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-03-20 07:34:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:34:13,843 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:13,843 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:13,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:34:13,843 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:13,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1209199142, now seen corresponding path program 1 times [2022-03-20 07:34:13,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:13,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943724603] [2022-03-20 07:34:13,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:13,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:13,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:13,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943724603] [2022-03-20 07:34:13,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943724603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:13,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:13,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349788547] [2022-03-20 07:34:13,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:13,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:13,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:13,953 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:16,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:18,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:20,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:20,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:20,744 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-03-20 07:34:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:20,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-20 07:34:20,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:20,746 INFO L225 Difference]: With dead ends: 185 [2022-03-20 07:34:20,746 INFO L226 Difference]: Without dead ends: 185 [2022-03-20 07:34:20,746 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:20,747 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:20,747 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 07:34:20,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-03-20 07:34:20,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-03-20 07:34:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-03-20 07:34:20,752 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-03-20 07:34:20,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:20,753 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-03-20 07:34:20,753 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:20,753 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-03-20 07:34:20,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:34:20,753 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:20,754 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:20,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:34:20,754 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:20,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:20,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1966452198, now seen corresponding path program 1 times [2022-03-20 07:34:20,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:20,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698590652] [2022-03-20 07:34:20,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:20,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:20,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:20,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698590652] [2022-03-20 07:34:20,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698590652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:20,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:20,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:20,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439063079] [2022-03-20 07:34:20,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:20,913 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:20,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:20,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:20,914 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:23,288 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 [] [2022-03-20 07:34:24,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:24,952 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-03-20 07:34:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-20 07:34:24,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:24,954 INFO L225 Difference]: With dead ends: 183 [2022-03-20 07:34:24,954 INFO L226 Difference]: Without dead ends: 183 [2022-03-20 07:34:24,954 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:24,955 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:24,955 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:34:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-03-20 07:34:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-03-20 07:34:24,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 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) [2022-03-20 07:34:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-03-20 07:34:24,961 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-03-20 07:34:24,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:24,962 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-03-20 07:34:24,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:24,962 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-03-20 07:34:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-03-20 07:34:24,962 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:24,962 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:24,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:34:24,963 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:24,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1979822394, now seen corresponding path program 1 times [2022-03-20 07:34:24,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:24,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067508979] [2022-03-20 07:34:24,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:25,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:25,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067508979] [2022-03-20 07:34:25,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067508979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:25,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:25,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:25,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093990413] [2022-03-20 07:34:25,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:25,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:25,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:25,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:25,079 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:26,422 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 [] [2022-03-20 07:34:28,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:30,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:30,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:30,946 INFO L93 Difference]: Finished difference Result 285 states and 435 transitions. [2022-03-20 07:34:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-03-20 07:34:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:30,948 INFO L225 Difference]: With dead ends: 285 [2022-03-20 07:34:30,948 INFO L226 Difference]: Without dead ends: 285 [2022-03-20 07:34:30,948 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:30,949 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 141 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:30,949 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 07:34:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-20 07:34:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-03-20 07:34:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-03-20 07:34:30,954 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-03-20 07:34:30,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:30,954 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-03-20 07:34:30,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-03-20 07:34:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-03-20 07:34:30,955 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:30,955 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:30,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:34:30,960 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1222198510, now seen corresponding path program 1 times [2022-03-20 07:34:30,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:30,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328212828] [2022-03-20 07:34:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:31,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:31,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:31,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328212828] [2022-03-20 07:34:31,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328212828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:31,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:31,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:31,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178347262] [2022-03-20 07:34:31,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:31,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:31,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:31,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:31,078 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:32,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:34,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:36,253 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 [] [2022-03-20 07:34:36,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:36,683 INFO L93 Difference]: Finished difference Result 285 states and 432 transitions. [2022-03-20 07:34:36,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:36,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-03-20 07:34:36,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:36,684 INFO L225 Difference]: With dead ends: 285 [2022-03-20 07:34:36,684 INFO L226 Difference]: Without dead ends: 285 [2022-03-20 07:34:36,685 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:36,685 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:36,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:34:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-03-20 07:34:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-03-20 07:34:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-03-20 07:34:36,689 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-03-20 07:34:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:36,690 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-03-20 07:34:36,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-03-20 07:34:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-20 07:34:36,690 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:36,690 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:36,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:34:36,691 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1020945954, now seen corresponding path program 1 times [2022-03-20 07:34:36,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:36,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300012668] [2022-03-20 07:34:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:36,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:36,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:36,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300012668] [2022-03-20 07:34:36,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300012668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:36,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:36,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:36,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373829430] [2022-03-20 07:34:36,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:36,814 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:36,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:36,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:36,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:36,815 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:38,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:39,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:40,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:40,684 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-03-20 07:34:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:40,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-03-20 07:34:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:40,686 INFO L225 Difference]: With dead ends: 200 [2022-03-20 07:34:40,686 INFO L226 Difference]: Without dead ends: 200 [2022-03-20 07:34:40,686 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:40,686 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:40,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:34:40,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-03-20 07:34:40,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-03-20 07:34:40,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 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) [2022-03-20 07:34:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-03-20 07:34:40,690 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-03-20 07:34:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:40,690 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-03-20 07:34:40,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:40,690 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-03-20 07:34:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 07:34:40,691 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:40,691 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:40,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:34:40,691 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1845134763, now seen corresponding path program 1 times [2022-03-20 07:34:40,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:40,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064406142] [2022-03-20 07:34:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:40,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064406142] [2022-03-20 07:34:40,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064406142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:40,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:40,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:40,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45722612] [2022-03-20 07:34:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:40,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:40,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:40,818 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:44,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:44,519 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-03-20 07:34:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 07:34:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:44,521 INFO L225 Difference]: With dead ends: 190 [2022-03-20 07:34:44,521 INFO L226 Difference]: Without dead ends: 190 [2022-03-20 07:34:44,521 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:44,522 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:44,522 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:34:44,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-20 07:34:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-03-20 07:34:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 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) [2022-03-20 07:34:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-03-20 07:34:44,526 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-03-20 07:34:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:44,527 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-03-20 07:34:44,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-03-20 07:34:44,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 07:34:44,528 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:44,528 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:44,528 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:34:44,528 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:44,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1478412284, now seen corresponding path program 1 times [2022-03-20 07:34:44,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:44,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650081528] [2022-03-20 07:34:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:44,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:44,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:44,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:44,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650081528] [2022-03-20 07:34:44,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650081528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:44,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:44,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:44,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983724929] [2022-03-20 07:34:44,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:44,622 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:44,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:44,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:44,628 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:45,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:47,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:49,090 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 [] [2022-03-20 07:34:49,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:49,704 INFO L93 Difference]: Finished difference Result 303 states and 457 transitions. [2022-03-20 07:34:49,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:49,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 07:34:49,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:49,705 INFO L225 Difference]: With dead ends: 303 [2022-03-20 07:34:49,705 INFO L226 Difference]: Without dead ends: 303 [2022-03-20 07:34:49,706 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:49,706 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 130 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:49,706 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 07:34:49,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-03-20 07:34:49,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 215. [2022-03-20 07:34:49,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:49,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-03-20 07:34:49,710 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-03-20 07:34:49,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:49,711 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-03-20 07:34:49,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:49,711 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-03-20 07:34:49,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 07:34:49,711 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:49,711 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:49,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:34:49,712 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:49,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:49,712 INFO L85 PathProgramCache]: Analyzing trace with hash 478953171, now seen corresponding path program 1 times [2022-03-20 07:34:49,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:49,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636989506] [2022-03-20 07:34:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:49,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:49,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:49,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:49,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636989506] [2022-03-20 07:34:49,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636989506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:49,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:49,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:49,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325128530] [2022-03-20 07:34:49,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:49,821 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:49,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:49,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:49,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:49,822 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:51,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:54,043 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 [] [2022-03-20 07:34:54,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:54,412 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-03-20 07:34:54,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:54,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-03-20 07:34:54,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:54,414 INFO L225 Difference]: With dead ends: 257 [2022-03-20 07:34:54,414 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 07:34:54,414 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:54,414 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:54,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 07:34:54,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 07:34:54,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-03-20 07:34:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:54,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-03-20 07:34:54,418 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-03-20 07:34:54,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:54,419 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-03-20 07:34:54,419 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:54,419 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-03-20 07:34:54,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 07:34:54,419 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:54,419 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:54,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:34:54,420 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:54,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:54,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1095309927, now seen corresponding path program 1 times [2022-03-20 07:34:54,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:54,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494279976] [2022-03-20 07:34:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:54,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:54,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 07:34:54,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:54,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494279976] [2022-03-20 07:34:54,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494279976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:54,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:54,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:54,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894966991] [2022-03-20 07:34:54,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:54,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:54,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:54,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:54,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:54,551 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:57,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:58,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:58,122 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-03-20 07:34:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:58,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 07:34:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:58,124 INFO L225 Difference]: With dead ends: 250 [2022-03-20 07:34:58,124 INFO L226 Difference]: Without dead ends: 250 [2022-03-20 07:34:58,124 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:58,124 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:58,125 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 07:34:58,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-03-20 07:34:58,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-03-20 07:34:58,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:58,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-03-20 07:34:58,128 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-03-20 07:34:58,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:58,129 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-03-20 07:34:58,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:58,129 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-03-20 07:34:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 07:34:58,129 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:58,129 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:58,130 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:34:58,130 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:58,130 INFO L85 PathProgramCache]: Analyzing trace with hash 725568825, now seen corresponding path program 1 times [2022-03-20 07:34:58,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:58,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921686917] [2022-03-20 07:34:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:58,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:34:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:58,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921686917] [2022-03-20 07:34:58,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921686917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:58,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:58,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692315266] [2022-03-20 07:34:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:58,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:58,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:58,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:58,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:58,221 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:59,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:00,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:01,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:02,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:02,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:02,899 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-03-20 07:35:02,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:02,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 07:35:02,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:02,901 INFO L225 Difference]: With dead ends: 255 [2022-03-20 07:35:02,901 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 07:35:02,901 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:02,901 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:02,902 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:35:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 07:35:02,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-03-20 07:35:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-03-20 07:35:02,905 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-03-20 07:35:02,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:02,905 INFO L478 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-03-20 07:35:02,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:02,906 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-03-20 07:35:02,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 07:35:02,906 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:02,906 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:02,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:35:02,906 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:02,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:02,907 INFO L85 PathProgramCache]: Analyzing trace with hash -409272786, now seen corresponding path program 1 times [2022-03-20 07:35:02,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:02,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683803884] [2022-03-20 07:35:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:02,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:03,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 07:35:03,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:03,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683803884] [2022-03-20 07:35:03,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683803884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:03,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:03,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:35:03,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789567067] [2022-03-20 07:35:03,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:03,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:35:03,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:03,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:35:03,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:03,026 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:04,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:06,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:09,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:10,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:11,290 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-03-20 07:35:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:35:11,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-20 07:35:11,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:11,291 INFO L225 Difference]: With dead ends: 246 [2022-03-20 07:35:11,291 INFO L226 Difference]: Without dead ends: 246 [2022-03-20 07:35:11,291 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:35:11,292 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:11,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 434 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-03-20 07:35:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-20 07:35:11,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-03-20 07:35:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:11,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-03-20 07:35:11,296 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-03-20 07:35:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:11,296 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-03-20 07:35:11,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-03-20 07:35:11,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 07:35:11,297 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:11,297 INFO L499 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] [2022-03-20 07:35:11,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:35:11,297 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:11,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:11,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2074107470, now seen corresponding path program 1 times [2022-03-20 07:35:11,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:11,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595884381] [2022-03-20 07:35:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:11,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:35:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:11,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595884381] [2022-03-20 07:35:11,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595884381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:11,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:11,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:11,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030867381] [2022-03-20 07:35:11,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:11,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:11,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:11,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:11,385 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:12,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:15,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:17,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:17,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:17,752 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-03-20 07:35:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:17,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-20 07:35:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:17,753 INFO L225 Difference]: With dead ends: 273 [2022-03-20 07:35:17,753 INFO L226 Difference]: Without dead ends: 273 [2022-03-20 07:35:17,754 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:17,754 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:17,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 389 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 07:35:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-20 07:35:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-03-20 07:35:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-03-20 07:35:17,758 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-03-20 07:35:17,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:17,758 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-03-20 07:35:17,758 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-03-20 07:35:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 07:35:17,759 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:17,759 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:17,759 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:35:17,759 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:17,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2128965550, now seen corresponding path program 1 times [2022-03-20 07:35:17,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:17,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814125903] [2022-03-20 07:35:17,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:35:17,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:17,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814125903] [2022-03-20 07:35:17,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814125903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:17,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:17,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:17,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099761709] [2022-03-20 07:35:17,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:17,845 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:17,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:17,845 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:18,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:20,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:22,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:22,837 INFO L93 Difference]: Finished difference Result 353 states and 527 transitions. [2022-03-20 07:35:22,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:22,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 07:35:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:22,839 INFO L225 Difference]: With dead ends: 353 [2022-03-20 07:35:22,839 INFO L226 Difference]: Without dead ends: 353 [2022-03-20 07:35:22,839 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:22,840 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 144 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:22,840 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:35:22,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-20 07:35:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 246. [2022-03-20 07:35:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-03-20 07:35:22,844 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-03-20 07:35:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:22,844 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-03-20 07:35:22,844 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:22,844 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-03-20 07:35:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 07:35:22,845 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:22,845 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:22,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:35:22,845 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:22,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1952802305, now seen corresponding path program 1 times [2022-03-20 07:35:22,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:22,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934102398] [2022-03-20 07:35:22,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:22,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:35:22,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:22,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934102398] [2022-03-20 07:35:22,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934102398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:22,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:22,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:22,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336044591] [2022-03-20 07:35:22,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:22,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:22,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:22,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:22,965 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:24,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:25,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:25,405 INFO L93 Difference]: Finished difference Result 353 states and 523 transitions. [2022-03-20 07:35:25,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:25,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 07:35:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:25,406 INFO L225 Difference]: With dead ends: 353 [2022-03-20 07:35:25,406 INFO L226 Difference]: Without dead ends: 353 [2022-03-20 07:35:25,406 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:25,407 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 142 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:25,407 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 344 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:35:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-03-20 07:35:25,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 246. [2022-03-20 07:35:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-03-20 07:35:25,411 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-03-20 07:35:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:25,411 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-03-20 07:35:25,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:25,411 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-03-20 07:35:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:35:25,412 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:25,412 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:25,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:35:25,412 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:25,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2041710414, now seen corresponding path program 1 times [2022-03-20 07:35:25,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:25,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743475936] [2022-03-20 07:35:25,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:25,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:25,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:25,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743475936] [2022-03-20 07:35:25,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743475936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:25,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:25,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:25,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97931940] [2022-03-20 07:35:25,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:25,531 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:25,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:25,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:25,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:25,532 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:26,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:28,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:29,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:29,914 INFO L93 Difference]: Finished difference Result 351 states and 513 transitions. [2022-03-20 07:35:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:29,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have 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 [2022-03-20 07:35:29,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:29,916 INFO L225 Difference]: With dead ends: 351 [2022-03-20 07:35:29,916 INFO L226 Difference]: Without dead ends: 351 [2022-03-20 07:35:29,916 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:29,916 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:29,916 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:35:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-03-20 07:35:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 277. [2022-03-20 07:35:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:29,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-03-20 07:35:29,920 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-03-20 07:35:29,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:29,920 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-03-20 07:35:29,921 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:29,921 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-03-20 07:35:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:35:29,921 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:29,921 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:29,921 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:35:29,921 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1016218415, now seen corresponding path program 1 times [2022-03-20 07:35:29,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:29,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158712117] [2022-03-20 07:35:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:29,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:30,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:30,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158712117] [2022-03-20 07:35:30,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158712117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:30,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:30,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:30,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694128601] [2022-03-20 07:35:30,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:30,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:30,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:30,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:30,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:30,033 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:32,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:34,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:35,044 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-03-20 07:35:35,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:35,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have 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 [2022-03-20 07:35:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:35,045 INFO L225 Difference]: With dead ends: 335 [2022-03-20 07:35:35,045 INFO L226 Difference]: Without dead ends: 335 [2022-03-20 07:35:35,045 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:35,045 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:35,046 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:35:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-03-20 07:35:35,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-03-20 07:35:35,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 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) [2022-03-20 07:35:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-03-20 07:35:35,050 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-03-20 07:35:35,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:35,050 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-03-20 07:35:35,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:35,050 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-03-20 07:35:35,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:35:35,050 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:35,051 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:35,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:35:35,051 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -358305085, now seen corresponding path program 1 times [2022-03-20 07:35:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:35,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499885076] [2022-03-20 07:35:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:35,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:35,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:35,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499885076] [2022-03-20 07:35:35,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499885076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:35,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:35,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:35,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122495470] [2022-03-20 07:35:35,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:35,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:35,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:35,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:35,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:35,155 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:37,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:37,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:37,596 INFO L93 Difference]: Finished difference Result 398 states and 590 transitions. [2022-03-20 07:35:37,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:37,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 07:35:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:37,598 INFO L225 Difference]: With dead ends: 398 [2022-03-20 07:35:37,598 INFO L226 Difference]: Without dead ends: 398 [2022-03-20 07:35:37,598 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:37,598 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 145 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:37,598 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 346 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:35:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-03-20 07:35:37,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 301. [2022-03-20 07:35:37,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:37,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-03-20 07:35:37,603 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-03-20 07:35:37,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:37,603 INFO L478 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-03-20 07:35:37,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:37,603 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-03-20 07:35:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:35:37,604 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:37,604 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:37,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:35:37,604 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:37,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:37,604 INFO L85 PathProgramCache]: Analyzing trace with hash -627016711, now seen corresponding path program 1 times [2022-03-20 07:35:37,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:37,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484021817] [2022-03-20 07:35:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:37,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:37,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:37,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484021817] [2022-03-20 07:35:37,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484021817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:37,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:37,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:37,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950830982] [2022-03-20 07:35:37,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:37,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:37,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:37,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:37,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:37,707 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:40,019 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 [] [2022-03-20 07:35:41,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:42,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:43,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:43,041 INFO L93 Difference]: Finished difference Result 427 states and 634 transitions. [2022-03-20 07:35:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:43,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 07:35:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:43,043 INFO L225 Difference]: With dead ends: 427 [2022-03-20 07:35:43,043 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 07:35:43,043 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:43,043 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:43,044 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-20 07:35:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 07:35:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 351. [2022-03-20 07:35:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-03-20 07:35:43,048 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-03-20 07:35:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:43,049 INFO L478 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-03-20 07:35:43,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-03-20 07:35:43,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 07:35:43,049 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:43,049 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:43,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:35:43,050 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:43,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:43,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2038270526, now seen corresponding path program 1 times [2022-03-20 07:35:43,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:43,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891646332] [2022-03-20 07:35:43,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:43,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:43,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:43,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891646332] [2022-03-20 07:35:43,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891646332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:43,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:43,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789314332] [2022-03-20 07:35:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:43,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:43,156 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:44,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:46,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:47,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:47,361 INFO L93 Difference]: Finished difference Result 409 states and 609 transitions. [2022-03-20 07:35:47,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:47,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 07:35:47,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:47,364 INFO L225 Difference]: With dead ends: 409 [2022-03-20 07:35:47,364 INFO L226 Difference]: Without dead ends: 409 [2022-03-20 07:35:47,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:47,365 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 67 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:47,365 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:35:47,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-03-20 07:35:47,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 362. [2022-03-20 07:35:47,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:47,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-03-20 07:35:47,370 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-03-20 07:35:47,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:47,370 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-03-20 07:35:47,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-03-20 07:35:47,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-20 07:35:47,371 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:47,371 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:47,371 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:35:47,371 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:47,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash -987048744, now seen corresponding path program 1 times [2022-03-20 07:35:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:47,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817341049] [2022-03-20 07:35:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:47,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:47,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:47,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817341049] [2022-03-20 07:35:47,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817341049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:47,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:47,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:47,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177429573] [2022-03-20 07:35:47,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:47,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:47,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:47,493 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:50,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:52,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:52,859 INFO L93 Difference]: Finished difference Result 449 states and 671 transitions. [2022-03-20 07:35:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:52,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-20 07:35:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:52,861 INFO L225 Difference]: With dead ends: 449 [2022-03-20 07:35:52,861 INFO L226 Difference]: Without dead ends: 449 [2022-03-20 07:35:52,861 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:52,862 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 138 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:52,862 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 07:35:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-03-20 07:35:52,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 362. [2022-03-20 07:35:52,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-03-20 07:35:52,866 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-03-20 07:35:52,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:52,866 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-03-20 07:35:52,866 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-03-20 07:35:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-20 07:35:52,867 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:52,867 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:52,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:35:52,867 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash 522570383, now seen corresponding path program 1 times [2022-03-20 07:35:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:52,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944269830] [2022-03-20 07:35:52,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:52,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:52,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944269830] [2022-03-20 07:35:52,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944269830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:52,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:52,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:52,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056643816] [2022-03-20 07:35:52,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:52,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:52,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:52,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:52,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:52,984 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:54,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:56,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:58,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:58,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:58,566 INFO L93 Difference]: Finished difference Result 439 states and 652 transitions. [2022-03-20 07:35:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:58,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-20 07:35:58,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:58,567 INFO L225 Difference]: With dead ends: 439 [2022-03-20 07:35:58,567 INFO L226 Difference]: Without dead ends: 439 [2022-03-20 07:35:58,568 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:58,568 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 135 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:58,568 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:35:58,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-03-20 07:35:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 362. [2022-03-20 07:35:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-03-20 07:35:58,573 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-03-20 07:35:58,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:58,573 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-03-20 07:35:58,573 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:58,573 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-03-20 07:35:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:35:58,574 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:58,574 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:58,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:35:58,574 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:58,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:58,574 INFO L85 PathProgramCache]: Analyzing trace with hash 39070128, now seen corresponding path program 1 times [2022-03-20 07:35:58,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:58,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777481641] [2022-03-20 07:35:58,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:58,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:58,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:35:58,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:58,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777481641] [2022-03-20 07:35:58,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777481641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:58,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:58,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:58,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888867027] [2022-03-20 07:35:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:58,665 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:58,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:58,666 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:01,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:03,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:04,209 INFO L93 Difference]: Finished difference Result 397 states and 582 transitions. [2022-03-20 07:36:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:36:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:04,211 INFO L225 Difference]: With dead ends: 397 [2022-03-20 07:36:04,211 INFO L226 Difference]: Without dead ends: 397 [2022-03-20 07:36:04,211 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:36:04,212 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:04,212 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-20 07:36:04,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-20 07:36:04,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 362. [2022-03-20 07:36:04,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-03-20 07:36:04,216 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-03-20 07:36:04,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:04,216 INFO L478 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-03-20 07:36:04,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:04,216 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-03-20 07:36:04,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:36:04,217 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:04,217 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:04,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:36:04,217 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:04,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:04,218 INFO L85 PathProgramCache]: Analyzing trace with hash 59407503, now seen corresponding path program 1 times [2022-03-20 07:36:04,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:04,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133727026] [2022-03-20 07:36:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:04,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 07:36:04,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:04,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133727026] [2022-03-20 07:36:04,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133727026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:04,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:04,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:04,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043116428] [2022-03-20 07:36:04,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:04,326 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:04,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:04,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:04,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:04,326 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:05,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:07,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:09,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:09,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:09,754 INFO L93 Difference]: Finished difference Result 691 states and 1024 transitions. [2022-03-20 07:36:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:36:09,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:09,756 INFO L225 Difference]: With dead ends: 691 [2022-03-20 07:36:09,756 INFO L226 Difference]: Without dead ends: 691 [2022-03-20 07:36:09,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:09,757 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:09,757 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 433 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 276 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 07:36:09,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-03-20 07:36:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-03-20 07:36:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 686 states have (on average 1.4868804664723032) internal successors, (1020), 686 states have internal predecessors, (1020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:09,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1024 transitions. [2022-03-20 07:36:09,764 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1024 transitions. Word has length 104 [2022-03-20 07:36:09,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:09,764 INFO L478 AbstractCegarLoop]: Abstraction has 691 states and 1024 transitions. [2022-03-20 07:36:09,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1024 transitions. [2022-03-20 07:36:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:36:09,765 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:09,766 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:09,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:36:09,766 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:09,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:09,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1871211602, now seen corresponding path program 1 times [2022-03-20 07:36:09,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:09,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920487747] [2022-03-20 07:36:09,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:09,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 07:36:09,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:09,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920487747] [2022-03-20 07:36:09,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920487747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:09,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:09,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:09,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626750237] [2022-03-20 07:36:09,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:09,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:09,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:09,888 INFO L87 Difference]: Start difference. First operand 691 states and 1024 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:11,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:13,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:14,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:14,072 INFO L93 Difference]: Finished difference Result 718 states and 1059 transitions. [2022-03-20 07:36:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:36:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:14,085 INFO L225 Difference]: With dead ends: 718 [2022-03-20 07:36:14,085 INFO L226 Difference]: Without dead ends: 718 [2022-03-20 07:36:14,085 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:14,086 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:14,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:36:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-03-20 07:36:14,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2022-03-20 07:36:14,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 713 states have (on average 1.4796633941093968) internal successors, (1055), 713 states have internal predecessors, (1055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:14,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1059 transitions. [2022-03-20 07:36:14,093 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1059 transitions. Word has length 104 [2022-03-20 07:36:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:14,093 INFO L478 AbstractCegarLoop]: Abstraction has 718 states and 1059 transitions. [2022-03-20 07:36:14,094 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1059 transitions. [2022-03-20 07:36:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-20 07:36:14,095 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:14,095 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:14,095 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:36:14,095 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:14,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1451694771, now seen corresponding path program 1 times [2022-03-20 07:36:14,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:14,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456011912] [2022-03-20 07:36:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:14,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:14,171 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-20 07:36:14,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:14,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456011912] [2022-03-20 07:36:14,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456011912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:14,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:14,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:14,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551806874] [2022-03-20 07:36:14,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:14,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:14,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:14,173 INFO L87 Difference]: Start difference. First operand 718 states and 1059 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:15,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:17,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:19,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:20,063 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-03-20 07:36:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-03-20 07:36:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:20,066 INFO L225 Difference]: With dead ends: 720 [2022-03-20 07:36:20,066 INFO L226 Difference]: Without dead ends: 720 [2022-03-20 07:36:20,066 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:20,066 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:20,066 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 07:36:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-20 07:36:20,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-03-20 07:36:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-03-20 07:36:20,073 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-03-20 07:36:20,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:20,073 INFO L478 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-03-20 07:36:20,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-03-20 07:36:20,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-20 07:36:20,074 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:20,074 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:20,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:36:20,075 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2030270456, now seen corresponding path program 1 times [2022-03-20 07:36:20,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:20,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118769977] [2022-03-20 07:36:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:20,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:20,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:20,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118769977] [2022-03-20 07:36:20,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118769977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:20,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:20,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:20,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47288622] [2022-03-20 07:36:20,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:20,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:20,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:20,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:20,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:20,166 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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) [2022-03-20 07:36:22,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:23,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:24,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:24,084 INFO L93 Difference]: Finished difference Result 1056 states and 1564 transitions. [2022-03-20 07:36:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:24,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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 106 [2022-03-20 07:36:24,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:24,087 INFO L225 Difference]: With dead ends: 1056 [2022-03-20 07:36:24,087 INFO L226 Difference]: Without dead ends: 1056 [2022-03-20 07:36:24,087 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:24,088 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:24,088 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:36:24,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-03-20 07:36:24,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1054. [2022-03-20 07:36:24,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.4861773117254529) internal successors, (1559), 1049 states have internal predecessors, (1559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1563 transitions. [2022-03-20 07:36:24,098 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1563 transitions. Word has length 106 [2022-03-20 07:36:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:24,098 INFO L478 AbstractCegarLoop]: Abstraction has 1054 states and 1563 transitions. [2022-03-20 07:36:24,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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) [2022-03-20 07:36:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1563 transitions. [2022-03-20 07:36:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-20 07:36:24,099 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:24,099 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:24,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:36:24,100 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash 538755348, now seen corresponding path program 1 times [2022-03-20 07:36:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:24,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301580437] [2022-03-20 07:36:24,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:24,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:24,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:24,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:24,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301580437] [2022-03-20 07:36:24,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301580437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:24,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:24,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:24,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969234228] [2022-03-20 07:36:24,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:24,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:24,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:24,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:24,206 INFO L87 Difference]: Start difference. First operand 1054 states and 1563 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:25,899 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 [] [2022-03-20 07:36:28,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:28,710 INFO L93 Difference]: Finished difference Result 1390 states and 2052 transitions. [2022-03-20 07:36:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-20 07:36:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:28,714 INFO L225 Difference]: With dead ends: 1390 [2022-03-20 07:36:28,714 INFO L226 Difference]: Without dead ends: 1390 [2022-03-20 07:36:28,714 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:28,715 INFO L913 BasicCegarLoop]: 380 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:28,715 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 574 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 07:36:28,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-03-20 07:36:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1388. [2022-03-20 07:36:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1383 states have (on average 1.480115690527838) internal successors, (2047), 1383 states have internal predecessors, (2047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:28,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 2051 transitions. [2022-03-20 07:36:28,727 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 2051 transitions. Word has length 112 [2022-03-20 07:36:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:28,727 INFO L478 AbstractCegarLoop]: Abstraction has 1388 states and 2051 transitions. [2022-03-20 07:36:28,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 2051 transitions. [2022-03-20 07:36:28,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-03-20 07:36:28,729 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:28,729 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:28,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:36:28,729 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1278673933, now seen corresponding path program 1 times [2022-03-20 07:36:28,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:28,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335953910] [2022-03-20 07:36:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:28,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:28,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:28,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335953910] [2022-03-20 07:36:28,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335953910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:28,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:28,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210852893] [2022-03-20 07:36:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:28,819 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:28,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:28,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:28,819 INFO L87 Difference]: Start difference. First operand 1388 states and 2051 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:30,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:31,256 INFO L93 Difference]: Finished difference Result 1690 states and 2489 transitions. [2022-03-20 07:36:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:31,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-03-20 07:36:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:31,261 INFO L225 Difference]: With dead ends: 1690 [2022-03-20 07:36:31,261 INFO L226 Difference]: Without dead ends: 1690 [2022-03-20 07:36:31,261 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:36:31,261 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 105 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:31,261 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 380 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:36:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-03-20 07:36:31,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1392. [2022-03-20 07:36:31,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1387 states have (on average 1.4844989185291997) internal successors, (2059), 1387 states have internal predecessors, (2059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2063 transitions. [2022-03-20 07:36:31,275 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2063 transitions. Word has length 129 [2022-03-20 07:36:31,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:31,275 INFO L478 AbstractCegarLoop]: Abstraction has 1392 states and 2063 transitions. [2022-03-20 07:36:31,275 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:31,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2063 transitions. [2022-03-20 07:36:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 07:36:31,277 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:31,277 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:31,277 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:36:31,277 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-03-20 07:36:31,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:31,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720458303] [2022-03-20 07:36:31,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:31,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 07:36:31,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:31,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720458303] [2022-03-20 07:36:31,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720458303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:31,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:31,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:31,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481466153] [2022-03-20 07:36:31,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:31,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:31,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:31,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:31,394 INFO L87 Difference]: Start difference. First operand 1392 states and 2063 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:32,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:34,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:36,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:36,854 INFO L93 Difference]: Finished difference Result 1729 states and 2563 transitions. [2022-03-20 07:36:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:36,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 07:36:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:36,859 INFO L225 Difference]: With dead ends: 1729 [2022-03-20 07:36:36,859 INFO L226 Difference]: Without dead ends: 1729 [2022-03-20 07:36:36,859 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:36,860 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:36,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 07:36:36,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-03-20 07:36:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1727. [2022-03-20 07:36:36,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1722 states have (on average 1.4854819976771196) internal successors, (2558), 1722 states have internal predecessors, (2558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2562 transitions. [2022-03-20 07:36:36,877 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2562 transitions. Word has length 134 [2022-03-20 07:36:36,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:36,877 INFO L478 AbstractCegarLoop]: Abstraction has 1727 states and 2562 transitions. [2022-03-20 07:36:36,877 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:36,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2562 transitions. [2022-03-20 07:36:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:36:36,879 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:36,879 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:36:36,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:36:36,879 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:36,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1937528124, now seen corresponding path program 1 times [2022-03-20 07:36:36,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:36,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334059307] [2022-03-20 07:36:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:36,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:36,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:36,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334059307] [2022-03-20 07:36:36,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334059307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:36,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:36,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:36,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997902480] [2022-03-20 07:36:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:36,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:36,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:36,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:36,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:36,972 INFO L87 Difference]: Start difference. First operand 1727 states and 2562 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:40,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:40,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:40,703 INFO L93 Difference]: Finished difference Result 2424 states and 3603 transitions. [2022-03-20 07:36:40,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:40,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 07:36:40,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:40,709 INFO L225 Difference]: With dead ends: 2424 [2022-03-20 07:36:40,709 INFO L226 Difference]: Without dead ends: 2424 [2022-03-20 07:36:40,709 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:36:40,710 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 111 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:40,710 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:36:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-03-20 07:36:40,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2047. [2022-03-20 07:36:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 2042 states have (on average 1.4926542605288933) internal successors, (3048), 2042 states have internal predecessors, (3048), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 3052 transitions. [2022-03-20 07:36:40,729 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 3052 transitions. Word has length 157 [2022-03-20 07:36:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:40,730 INFO L478 AbstractCegarLoop]: Abstraction has 2047 states and 3052 transitions. [2022-03-20 07:36:40,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 3052 transitions. [2022-03-20 07:36:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-20 07:36:40,732 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:40,732 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:36:40,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:36:40,733 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:40,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:40,733 INFO L85 PathProgramCache]: Analyzing trace with hash 345707707, now seen corresponding path program 1 times [2022-03-20 07:36:40,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:40,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185270276] [2022-03-20 07:36:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:40,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:40,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185270276] [2022-03-20 07:36:40,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185270276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:40,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:40,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:40,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085190073] [2022-03-20 07:36:40,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:40,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:40,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:40,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:40,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:40,856 INFO L87 Difference]: Start difference. First operand 2047 states and 3052 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:41,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:44,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:46,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:46,692 INFO L93 Difference]: Finished difference Result 2370 states and 3516 transitions. [2022-03-20 07:36:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-03-20 07:36:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:46,698 INFO L225 Difference]: With dead ends: 2370 [2022-03-20 07:36:46,698 INFO L226 Difference]: Without dead ends: 2370 [2022-03-20 07:36:46,698 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:36:46,698 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 68 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:46,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 642 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 579 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-20 07:36:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-03-20 07:36:46,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2195. [2022-03-20 07:36:46,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4977168949771689) internal successors, (3280), 2190 states have internal predecessors, (3280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3284 transitions. [2022-03-20 07:36:46,759 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3284 transitions. Word has length 162 [2022-03-20 07:36:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:46,760 INFO L478 AbstractCegarLoop]: Abstraction has 2195 states and 3284 transitions. [2022-03-20 07:36:46,760 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:46,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3284 transitions. [2022-03-20 07:36:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 07:36:46,763 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:46,763 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:36:46,763 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:36:46,763 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:46,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1703474583, now seen corresponding path program 1 times [2022-03-20 07:36:46,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:46,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358624745] [2022-03-20 07:36:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:46,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:46,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:46,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358624745] [2022-03-20 07:36:46,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358624745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:46,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:46,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:36:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473709620] [2022-03-20 07:36:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:46,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:36:46,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:46,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:36:46,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:36:46,859 INFO L87 Difference]: Start difference. First operand 2195 states and 3284 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:48,276 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 [] [2022-03-20 07:36:50,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:52,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:52,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:52,886 INFO L93 Difference]: Finished difference Result 2512 states and 3705 transitions. [2022-03-20 07:36:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:36:52,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-20 07:36:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:52,892 INFO L225 Difference]: With dead ends: 2512 [2022-03-20 07:36:52,892 INFO L226 Difference]: Without dead ends: 2512 [2022-03-20 07:36:52,892 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:36:52,892 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:52,892 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:36:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-03-20 07:36:52,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2195. [2022-03-20 07:36:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4931506849315068) internal successors, (3270), 2190 states have internal predecessors, (3270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3274 transitions. [2022-03-20 07:36:52,946 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3274 transitions. Word has length 163 [2022-03-20 07:36:52,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:52,946 INFO L478 AbstractCegarLoop]: Abstraction has 2195 states and 3274 transitions. [2022-03-20 07:36:52,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3274 transitions. [2022-03-20 07:36:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 07:36:52,949 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:52,949 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:36:52,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:36:52,949 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:52,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:52,950 INFO L85 PathProgramCache]: Analyzing trace with hash 539016946, now seen corresponding path program 1 times [2022-03-20 07:36:52,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:52,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919702460] [2022-03-20 07:36:52,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:52,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 07:36:53,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:53,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919702460] [2022-03-20 07:36:53,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919702460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:53,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:53,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:53,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801913843] [2022-03-20 07:36:53,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:53,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:53,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:53,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:53,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:53,051 INFO L87 Difference]: Start difference. First operand 2195 states and 3274 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:54,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:56,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:58,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:36:59,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:36:59,216 INFO L93 Difference]: Finished difference Result 2591 states and 3864 transitions. [2022-03-20 07:36:59,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:36:59,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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 171 [2022-03-20 07:36:59,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:36:59,223 INFO L225 Difference]: With dead ends: 2591 [2022-03-20 07:36:59,223 INFO L226 Difference]: Without dead ends: 2591 [2022-03-20 07:36:59,223 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:59,223 INFO L913 BasicCegarLoop]: 385 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:36:59,224 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 579 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 425 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-20 07:36:59,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-03-20 07:36:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2591. [2022-03-20 07:36:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 2586 states have (on average 1.4926527455529777) internal successors, (3860), 2586 states have internal predecessors, (3860), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3864 transitions. [2022-03-20 07:36:59,244 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3864 transitions. Word has length 171 [2022-03-20 07:36:59,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:36:59,245 INFO L478 AbstractCegarLoop]: Abstraction has 2591 states and 3864 transitions. [2022-03-20 07:36:59,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:36:59,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3864 transitions. [2022-03-20 07:36:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 07:36:59,248 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:36:59,248 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:36:59,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:36:59,248 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:36:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:36:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1396643341, now seen corresponding path program 1 times [2022-03-20 07:36:59,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:36:59,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639226130] [2022-03-20 07:36:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:36:59,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:36:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:36:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:36:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:36:59,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:36:59,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639226130] [2022-03-20 07:36:59,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639226130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:36:59,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:36:59,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:36:59,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588192939] [2022-03-20 07:36:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:36:59,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:36:59,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:36:59,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:36:59,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:36:59,338 INFO L87 Difference]: Start difference. First operand 2591 states and 3864 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:00,551 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 [] [2022-03-20 07:37:02,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:03,296 INFO L93 Difference]: Finished difference Result 2991 states and 4460 transitions. [2022-03-20 07:37:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:37:03,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 07:37:03,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:03,302 INFO L225 Difference]: With dead ends: 2991 [2022-03-20 07:37:03,303 INFO L226 Difference]: Without dead ends: 2991 [2022-03-20 07:37:03,303 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:37:03,306 INFO L913 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:03,306 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:37:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-03-20 07:37:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2991. [2022-03-20 07:37:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2986 states have (on average 1.492297387809779) internal successors, (4456), 2986 states have internal predecessors, (4456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4460 transitions. [2022-03-20 07:37:03,340 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4460 transitions. Word has length 171 [2022-03-20 07:37:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:03,340 INFO L478 AbstractCegarLoop]: Abstraction has 2991 states and 4460 transitions. [2022-03-20 07:37:03,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4460 transitions. [2022-03-20 07:37:03,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-20 07:37:03,343 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:03,343 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:03,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:37:03,343 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:03,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:03,344 INFO L85 PathProgramCache]: Analyzing trace with hash -649350432, now seen corresponding path program 1 times [2022-03-20 07:37:03,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:03,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524925471] [2022-03-20 07:37:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 07:37:03,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:03,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524925471] [2022-03-20 07:37:03,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524925471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:03,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:03,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:03,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41205767] [2022-03-20 07:37:03,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:03,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:03,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:03,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:03,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:03,453 INFO L87 Difference]: Start difference. First operand 2991 states and 4460 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:05,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:05,968 INFO L93 Difference]: Finished difference Result 3510 states and 5177 transitions. [2022-03-20 07:37:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:05,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-03-20 07:37:05,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:05,975 INFO L225 Difference]: With dead ends: 3510 [2022-03-20 07:37:05,975 INFO L226 Difference]: Without dead ends: 3510 [2022-03-20 07:37:05,975 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:05,975 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 103 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:05,976 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 514 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 539 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:37:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-03-20 07:37:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3075. [2022-03-20 07:37:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3075 states, 3070 states have (on average 1.4947882736156353) internal successors, (4589), 3070 states have internal predecessors, (4589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 4593 transitions. [2022-03-20 07:37:06,004 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 4593 transitions. Word has length 178 [2022-03-20 07:37:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:06,004 INFO L478 AbstractCegarLoop]: Abstraction has 3075 states and 4593 transitions. [2022-03-20 07:37:06,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 4593 transitions. [2022-03-20 07:37:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-20 07:37:06,007 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:06,007 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:06,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:37:06,008 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash 773618050, now seen corresponding path program 1 times [2022-03-20 07:37:06,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:06,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048455518] [2022-03-20 07:37:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:06,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 07:37:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:06,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048455518] [2022-03-20 07:37:06,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048455518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:06,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:06,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:06,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312471390] [2022-03-20 07:37:06,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:06,136 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:06,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:06,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:06,136 INFO L87 Difference]: Start difference. First operand 3075 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:07,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:08,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:11,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:11,791 INFO L93 Difference]: Finished difference Result 3517 states and 5184 transitions. [2022-03-20 07:37:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:11,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-20 07:37:11,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:11,796 INFO L225 Difference]: With dead ends: 3517 [2022-03-20 07:37:11,796 INFO L226 Difference]: Without dead ends: 3517 [2022-03-20 07:37:11,796 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:11,797 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 102 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:11,797 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 366 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 07:37:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2022-03-20 07:37:11,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3089. [2022-03-20 07:37:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3084 states have (on average 1.4948119325551232) internal successors, (4610), 3084 states have internal predecessors, (4610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:11,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4614 transitions. [2022-03-20 07:37:11,823 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4614 transitions. Word has length 179 [2022-03-20 07:37:11,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:11,823 INFO L478 AbstractCegarLoop]: Abstraction has 3089 states and 4614 transitions. [2022-03-20 07:37:11,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4614 transitions. [2022-03-20 07:37:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-20 07:37:11,826 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:11,826 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:11,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:37:11,826 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:11,827 INFO L85 PathProgramCache]: Analyzing trace with hash -30989214, now seen corresponding path program 1 times [2022-03-20 07:37:11,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:11,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094551659] [2022-03-20 07:37:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:11,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 07:37:11,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:11,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094551659] [2022-03-20 07:37:11,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094551659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:11,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:11,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:11,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223708979] [2022-03-20 07:37:11,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:11,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:11,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:11,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:11,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:11,929 INFO L87 Difference]: Start difference. First operand 3089 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:13,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:15,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:16,480 INFO L93 Difference]: Finished difference Result 3445 states and 5093 transitions. [2022-03-20 07:37:16,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:16,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-20 07:37:16,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:16,485 INFO L225 Difference]: With dead ends: 3445 [2022-03-20 07:37:16,485 INFO L226 Difference]: Without dead ends: 3445 [2022-03-20 07:37:16,485 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:16,485 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 81 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:16,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 639 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 07:37:16,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2022-03-20 07:37:16,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3089. [2022-03-20 07:37:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3084 states have (on average 1.4925421530479897) internal successors, (4603), 3084 states have internal predecessors, (4603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4607 transitions. [2022-03-20 07:37:16,512 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4607 transitions. Word has length 200 [2022-03-20 07:37:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:16,512 INFO L478 AbstractCegarLoop]: Abstraction has 3089 states and 4607 transitions. [2022-03-20 07:37:16,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4607 transitions. [2022-03-20 07:37:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-20 07:37:16,515 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:16,515 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:16,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 07:37:16,515 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:16,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:16,516 INFO L85 PathProgramCache]: Analyzing trace with hash 633065423, now seen corresponding path program 1 times [2022-03-20 07:37:16,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:16,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998493379] [2022-03-20 07:37:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:16,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:16,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 07:37:16,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:16,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998493379] [2022-03-20 07:37:16,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998493379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:16,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:16,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:16,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477737559] [2022-03-20 07:37:16,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:16,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:16,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:16,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:16,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:16,626 INFO L87 Difference]: Start difference. First operand 3089 states and 4607 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:18,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:20,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:21,501 INFO L93 Difference]: Finished difference Result 3517 states and 5124 transitions. [2022-03-20 07:37:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:21,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-03-20 07:37:21,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:21,506 INFO L225 Difference]: With dead ends: 3517 [2022-03-20 07:37:21,506 INFO L226 Difference]: Without dead ends: 3517 [2022-03-20 07:37:21,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:21,506 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 120 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:21,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 366 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:37:21,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2022-03-20 07:37:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3089. [2022-03-20 07:37:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3084 states have (on average 1.4753566796368354) internal successors, (4550), 3084 states have internal predecessors, (4550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4554 transitions. [2022-03-20 07:37:21,536 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4554 transitions. Word has length 201 [2022-03-20 07:37:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:21,536 INFO L478 AbstractCegarLoop]: Abstraction has 3089 states and 4554 transitions. [2022-03-20 07:37:21,536 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4554 transitions. [2022-03-20 07:37:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-03-20 07:37:21,539 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:21,540 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:21,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:37:21,540 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:21,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1754938053, now seen corresponding path program 1 times [2022-03-20 07:37:21,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:21,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51789062] [2022-03-20 07:37:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 290 proven. 44 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-03-20 07:37:21,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:21,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51789062] [2022-03-20 07:37:21,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51789062] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:37:21,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930086377] [2022-03-20 07:37:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:21,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:37:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:37:21,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:37:21,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 07:37:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:22,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-20 07:37:22,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:37:22,668 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:37:22,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:37:22,718 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:37:22,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:37:22,795 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:37:22,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:37:22,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:37:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 298 proven. 46 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-03-20 07:37:22,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:37:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-03-20 07:37:23,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930086377] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:37:23,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:37:23,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-20 07:37:23,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85382306] [2022-03-20 07:37:23,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:23,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:37:23,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:23,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:37:23,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 07:37:23,285 INFO L87 Difference]: Start difference. First operand 3089 states and 4554 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:24,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:24,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:24,673 INFO L93 Difference]: Finished difference Result 3811 states and 5504 transitions. [2022-03-20 07:37:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:37:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-03-20 07:37:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:24,678 INFO L225 Difference]: With dead ends: 3811 [2022-03-20 07:37:24,678 INFO L226 Difference]: Without dead ends: 3811 [2022-03-20 07:37:24,678 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 07:37:24,678 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 115 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:24,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 407 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-20 07:37:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2022-03-20 07:37:24,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3222. [2022-03-20 07:37:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3217 states have (on average 1.4497979483991297) internal successors, (4664), 3217 states have internal predecessors, (4664), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4668 transitions. [2022-03-20 07:37:24,703 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4668 transitions. Word has length 217 [2022-03-20 07:37:24,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:24,703 INFO L478 AbstractCegarLoop]: Abstraction has 3222 states and 4668 transitions. [2022-03-20 07:37:24,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4668 transitions. [2022-03-20 07:37:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-03-20 07:37:24,706 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:24,706 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:24,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 07:37:24,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:37:24,919 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:24,920 INFO L85 PathProgramCache]: Analyzing trace with hash -134734986, now seen corresponding path program 1 times [2022-03-20 07:37:24,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:24,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640230088] [2022-03-20 07:37:24,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:24,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-03-20 07:37:25,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:25,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640230088] [2022-03-20 07:37:25,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640230088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:25,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:25,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:25,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339936364] [2022-03-20 07:37:25,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:25,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:25,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:25,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:25,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:25,052 INFO L87 Difference]: Start difference. First operand 3222 states and 4668 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:26,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:27,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:29,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:29,803 INFO L93 Difference]: Finished difference Result 3811 states and 5443 transitions. [2022-03-20 07:37:29,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:29,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-03-20 07:37:29,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:29,808 INFO L225 Difference]: With dead ends: 3811 [2022-03-20 07:37:29,808 INFO L226 Difference]: Without dead ends: 3811 [2022-03-20 07:37:29,808 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:29,809 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 122 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:29,809 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:37:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2022-03-20 07:37:29,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3229. [2022-03-20 07:37:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3224 states have (on average 1.4320719602977667) internal successors, (4617), 3224 states have internal predecessors, (4617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4621 transitions. [2022-03-20 07:37:29,836 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4621 transitions. Word has length 218 [2022-03-20 07:37:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:29,837 INFO L478 AbstractCegarLoop]: Abstraction has 3229 states and 4621 transitions. [2022-03-20 07:37:29,838 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4621 transitions. [2022-03-20 07:37:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-20 07:37:29,841 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:29,841 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:29,841 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:37:29,841 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash 419405090, now seen corresponding path program 1 times [2022-03-20 07:37:29,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:29,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102471891] [2022-03-20 07:37:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-03-20 07:37:29,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:29,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102471891] [2022-03-20 07:37:29,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102471891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:29,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:29,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453843007] [2022-03-20 07:37:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:29,991 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:29,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:29,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:29,992 INFO L87 Difference]: Start difference. First operand 3229 states and 4621 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:32,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:34,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:35,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:35,194 INFO L93 Difference]: Finished difference Result 3535 states and 5041 transitions. [2022-03-20 07:37:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:35,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-03-20 07:37:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:35,198 INFO L225 Difference]: With dead ends: 3535 [2022-03-20 07:37:35,198 INFO L226 Difference]: Without dead ends: 3535 [2022-03-20 07:37:35,198 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:35,199 INFO L913 BasicCegarLoop]: 254 mSDtfsCounter, 72 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:35,199 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 621 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 546 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-20 07:37:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2022-03-20 07:37:35,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3229. [2022-03-20 07:37:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3224 states have (on average 1.4299007444168734) internal successors, (4610), 3224 states have internal predecessors, (4610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4614 transitions. [2022-03-20 07:37:35,239 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4614 transitions. Word has length 219 [2022-03-20 07:37:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:35,239 INFO L478 AbstractCegarLoop]: Abstraction has 3229 states and 4614 transitions. [2022-03-20 07:37:35,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:35,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4614 transitions. [2022-03-20 07:37:35,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-20 07:37:35,242 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:35,242 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:35,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:37:35,243 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1191827356, now seen corresponding path program 1 times [2022-03-20 07:37:35,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:35,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534613792] [2022-03-20 07:37:35,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:35,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:35,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 336 proven. 38 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-20 07:37:35,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:35,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534613792] [2022-03-20 07:37:35,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534613792] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:37:35,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472892889] [2022-03-20 07:37:35,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:35,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:37:35,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:37:35,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:37:35,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 07:37:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:36,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 07:37:36,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:37:36,278 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:37:36,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:37:36,320 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:37:36,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:37:36,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:37:36,456 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:37:36,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:37:36,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:37:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 290 proven. 68 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-03-20 07:37:36,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:37:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-03-20 07:37:36,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472892889] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:37:36,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:37:36,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 14 [2022-03-20 07:37:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170203172] [2022-03-20 07:37:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:36,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:37:36,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:37:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-20 07:37:36,851 INFO L87 Difference]: Start difference. First operand 3229 states and 4614 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:38,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:38,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:38,812 INFO L93 Difference]: Finished difference Result 3629 states and 5102 transitions. [2022-03-20 07:37:38,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:37:38,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-03-20 07:37:38,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:38,817 INFO L225 Difference]: With dead ends: 3629 [2022-03-20 07:37:38,817 INFO L226 Difference]: Without dead ends: 3629 [2022-03-20 07:37:38,817 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-03-20 07:37:38,818 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 116 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:38,818 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 413 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 07:37:38,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-03-20 07:37:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3229. [2022-03-20 07:37:38,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3224 states have (on average 1.4156327543424319) internal successors, (4564), 3224 states have internal predecessors, (4564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:38,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4568 transitions. [2022-03-20 07:37:38,855 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4568 transitions. Word has length 222 [2022-03-20 07:37:38,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:38,856 INFO L478 AbstractCegarLoop]: Abstraction has 3229 states and 4568 transitions. [2022-03-20 07:37:38,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:38,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4568 transitions. [2022-03-20 07:37:38,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-20 07:37:38,859 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:38,859 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:38,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 07:37:39,080 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-03-20 07:37:39,080 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash -562098506, now seen corresponding path program 1 times [2022-03-20 07:37:39,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:39,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320250325] [2022-03-20 07:37:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:39,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-03-20 07:37:39,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:39,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320250325] [2022-03-20 07:37:39,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320250325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:39,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:39,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912554547] [2022-03-20 07:37:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:39,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:39,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:39,249 INFO L87 Difference]: Start difference. First operand 3229 states and 4568 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:40,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:43,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:43,434 INFO L93 Difference]: Finished difference Result 3951 states and 5519 transitions. [2022-03-20 07:37:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:43,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-20 07:37:43,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:43,438 INFO L225 Difference]: With dead ends: 3951 [2022-03-20 07:37:43,438 INFO L226 Difference]: Without dead ends: 3951 [2022-03-20 07:37:43,438 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:43,439 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 112 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:43,439 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 368 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:37:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2022-03-20 07:37:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3439. [2022-03-20 07:37:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.4033197437390799) internal successors, (4819), 3434 states have internal predecessors, (4819), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4823 transitions. [2022-03-20 07:37:43,467 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4823 transitions. Word has length 234 [2022-03-20 07:37:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:43,467 INFO L478 AbstractCegarLoop]: Abstraction has 3439 states and 4823 transitions. [2022-03-20 07:37:43,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:43,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4823 transitions. [2022-03-20 07:37:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 07:37:43,470 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:43,470 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:43,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 07:37:43,471 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:43,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:43,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1056679587, now seen corresponding path program 1 times [2022-03-20 07:37:43,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:43,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727740551] [2022-03-20 07:37:43,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:43,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-03-20 07:37:43,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:43,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727740551] [2022-03-20 07:37:43,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727740551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:43,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:43,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916848170] [2022-03-20 07:37:43,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:43,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:43,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:43,596 INFO L87 Difference]: Start difference. First operand 3439 states and 4823 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:45,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:46,008 INFO L93 Difference]: Finished difference Result 3543 states and 4970 transitions. [2022-03-20 07:37:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:46,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 07:37:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:46,011 INFO L225 Difference]: With dead ends: 3543 [2022-03-20 07:37:46,011 INFO L226 Difference]: Without dead ends: 3543 [2022-03-20 07:37:46,011 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:46,011 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 30 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:46,012 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 582 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:37:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2022-03-20 07:37:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3439. [2022-03-20 07:37:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.4012813046010484) internal successors, (4812), 3434 states have internal predecessors, (4812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4816 transitions. [2022-03-20 07:37:46,035 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4816 transitions. Word has length 235 [2022-03-20 07:37:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:46,035 INFO L478 AbstractCegarLoop]: Abstraction has 3439 states and 4816 transitions. [2022-03-20 07:37:46,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4816 transitions. [2022-03-20 07:37:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-03-20 07:37:46,038 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:46,038 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:46,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:37:46,039 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:46,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:46,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1570803257, now seen corresponding path program 1 times [2022-03-20 07:37:46,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:46,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355970908] [2022-03-20 07:37:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:46,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 07:37:46,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:46,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355970908] [2022-03-20 07:37:46,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355970908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:46,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:46,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:46,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25014562] [2022-03-20 07:37:46,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:46,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:46,178 INFO L87 Difference]: Start difference. First operand 3439 states and 4816 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) [2022-03-20 07:37:47,842 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 [] [2022-03-20 07:37:48,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:49,508 INFO L93 Difference]: Finished difference Result 3580 states and 4975 transitions. [2022-03-20 07:37:49,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:37:49,509 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 238 [2022-03-20 07:37:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:49,513 INFO L225 Difference]: With dead ends: 3580 [2022-03-20 07:37:49,513 INFO L226 Difference]: Without dead ends: 3580 [2022-03-20 07:37:49,513 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:37:49,513 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 53 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:49,513 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 608 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 07:37:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2022-03-20 07:37:49,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3439. [2022-03-20 07:37:49,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.3998252766453116) internal successors, (4807), 3434 states have internal predecessors, (4807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:49,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4811 transitions. [2022-03-20 07:37:49,539 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4811 transitions. Word has length 238 [2022-03-20 07:37:49,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:49,539 INFO L478 AbstractCegarLoop]: Abstraction has 3439 states and 4811 transitions. [2022-03-20 07:37:49,539 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) [2022-03-20 07:37:49,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4811 transitions. [2022-03-20 07:37:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-03-20 07:37:49,543 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:49,543 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:49,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 07:37:49,543 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash -752454395, now seen corresponding path program 1 times [2022-03-20 07:37:49,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:49,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243687976] [2022-03-20 07:37:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:49,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 300 proven. 95 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-03-20 07:37:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:49,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243687976] [2022-03-20 07:37:49,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243687976] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:37:49,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157747255] [2022-03-20 07:37:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:37:49,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:37:49,718 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:37:49,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 07:37:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:50,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 1528 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-20 07:37:50,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:37:50,707 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:37:50,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:37:50,750 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:37:50,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:37:50,992 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:37:50,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:37:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 160 proven. 112 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-03-20 07:37:51,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:37:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-03-20 07:37:51,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157747255] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:37:51,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:37:51,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 13 [2022-03-20 07:37:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859626494] [2022-03-20 07:37:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:51,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:51,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-03-20 07:37:51,418 INFO L87 Difference]: Start difference. First operand 3439 states and 4811 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:53,301 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 [] [2022-03-20 07:37:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:37:53,586 INFO L93 Difference]: Finished difference Result 3867 states and 5347 transitions. [2022-03-20 07:37:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:37:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 260 [2022-03-20 07:37:53,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:37:53,589 INFO L225 Difference]: With dead ends: 3867 [2022-03-20 07:37:53,589 INFO L226 Difference]: Without dead ends: 3867 [2022-03-20 07:37:53,589 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-03-20 07:37:53,590 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 135 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:37:53,590 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 478 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 07:37:53,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2022-03-20 07:37:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3439. [2022-03-20 07:37:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.3899242865463017) internal successors, (4773), 3434 states have internal predecessors, (4773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:53,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4777 transitions. [2022-03-20 07:37:53,628 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4777 transitions. Word has length 260 [2022-03-20 07:37:53,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:37:53,628 INFO L478 AbstractCegarLoop]: Abstraction has 3439 states and 4777 transitions. [2022-03-20 07:37:53,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:53,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4777 transitions. [2022-03-20 07:37:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-03-20 07:37:53,632 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:37:53,632 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:37:53,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-20 07:37:53,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:37:53,846 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:37:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:37:53,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2034181945, now seen corresponding path program 1 times [2022-03-20 07:37:53,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:37:53,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033810518] [2022-03-20 07:37:53,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:37:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:37:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:54,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:37:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:37:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 07:37:54,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:37:54,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033810518] [2022-03-20 07:37:54,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033810518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:37:54,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:37:54,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:37:54,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332608501] [2022-03-20 07:37:54,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:37:54,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:37:54,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:37:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:37:54,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:37:54,051 INFO L87 Difference]: Start difference. First operand 3439 states and 4777 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:37:55,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:57,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:37:58,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:00,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:01,211 INFO L93 Difference]: Finished difference Result 4161 states and 5700 transitions. [2022-03-20 07:38:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 265 [2022-03-20 07:38:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:01,216 INFO L225 Difference]: With dead ends: 4161 [2022-03-20 07:38:01,216 INFO L226 Difference]: Without dead ends: 4161 [2022-03-20 07:38:01,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:38:01,217 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 114 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:01,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-20 07:38:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4161 states. [2022-03-20 07:38:01,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4161 to 3621. [2022-03-20 07:38:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3730641592920354) internal successors, (4965), 3616 states have internal predecessors, (4965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:01,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4969 transitions. [2022-03-20 07:38:01,241 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4969 transitions. Word has length 265 [2022-03-20 07:38:01,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:01,242 INFO L478 AbstractCegarLoop]: Abstraction has 3621 states and 4969 transitions. [2022-03-20 07:38:01,242 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4969 transitions. [2022-03-20 07:38:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-03-20 07:38:01,246 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:01,246 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:01,246 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 07:38:01,246 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:01,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:01,246 INFO L85 PathProgramCache]: Analyzing trace with hash -856596430, now seen corresponding path program 1 times [2022-03-20 07:38:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:01,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889188411] [2022-03-20 07:38:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:01,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 07:38:01,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:01,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889188411] [2022-03-20 07:38:01,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889188411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:01,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:01,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:38:01,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980476964] [2022-03-20 07:38:01,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:01,376 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:38:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:01,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:38:01,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:38:01,376 INFO L87 Difference]: Start difference. First operand 3621 states and 4969 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:02,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:03,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:06,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:06,449 INFO L93 Difference]: Finished difference Result 3752 states and 5113 transitions. [2022-03-20 07:38:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:38:06,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 266 [2022-03-20 07:38:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:06,453 INFO L225 Difference]: With dead ends: 3752 [2022-03-20 07:38:06,454 INFO L226 Difference]: Without dead ends: 3752 [2022-03-20 07:38:06,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:38:06,454 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 52 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:06,454 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 604 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 07:38:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2022-03-20 07:38:06,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3621. [2022-03-20 07:38:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3716814159292035) internal successors, (4960), 3616 states have internal predecessors, (4960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4964 transitions. [2022-03-20 07:38:06,482 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4964 transitions. Word has length 266 [2022-03-20 07:38:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:06,482 INFO L478 AbstractCegarLoop]: Abstraction has 3621 states and 4964 transitions. [2022-03-20 07:38:06,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4964 transitions. [2022-03-20 07:38:06,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-03-20 07:38:06,495 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:06,495 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:06,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 07:38:06,495 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:06,496 INFO L85 PathProgramCache]: Analyzing trace with hash -607752822, now seen corresponding path program 1 times [2022-03-20 07:38:06,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:06,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895021271] [2022-03-20 07:38:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:06,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:07,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-03-20 07:38:07,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:07,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895021271] [2022-03-20 07:38:07,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895021271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:38:07,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:38:07,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:38:07,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447954921] [2022-03-20 07:38:07,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:38:07,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:38:07,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:38:07,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:38:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:38:07,030 INFO L87 Difference]: Start difference. First operand 3621 states and 4964 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:08,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:10,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:11,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:12,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:14,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:38:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:38:14,639 INFO L93 Difference]: Finished difference Result 3629 states and 4974 transitions. [2022-03-20 07:38:14,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:38:14,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 285 [2022-03-20 07:38:14,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:38:14,643 INFO L225 Difference]: With dead ends: 3629 [2022-03-20 07:38:14,643 INFO L226 Difference]: Without dead ends: 3621 [2022-03-20 07:38:14,643 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 07:38:14,643 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:38:14,644 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-03-20 07:38:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-03-20 07:38:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3621. [2022-03-20 07:38:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3714048672566372) internal successors, (4959), 3616 states have internal predecessors, (4959), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4963 transitions. [2022-03-20 07:38:14,666 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4963 transitions. Word has length 285 [2022-03-20 07:38:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:38:14,666 INFO L478 AbstractCegarLoop]: Abstraction has 3621 states and 4963 transitions. [2022-03-20 07:38:14,666 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:38:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4963 transitions. [2022-03-20 07:38:14,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-03-20 07:38:14,671 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:38:14,671 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:38:14,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 07:38:14,671 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:38:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:38:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1221453515, now seen corresponding path program 1 times [2022-03-20 07:38:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:38:14,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278477225] [2022-03-20 07:38:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:14,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:38:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:38:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 28 proven. 337 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-03-20 07:38:15,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:38:15,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278477225] [2022-03-20 07:38:15,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278477225] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:38:15,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384318294] [2022-03-20 07:38:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:38:15,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:38:15,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:38:15,678 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:38:15,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 07:38:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:38:16,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 189 conjunts are in the unsatisfiable core [2022-03-20 07:38:16,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:38:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:38:16,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:38:16,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:38:17,214 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-20 07:38:17,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 1435629 treesize of output 312170 [2022-03-20 07:38:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:38:17,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:38:26,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:38:26,776 INFO L244 Elim1Store]: Index analysis took 374 ms [2022-03-20 07:43:32,785 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-20 07:43:32,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 07:43:32,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:43:32,986 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 519139 column 7: canceled at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:904) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 519139 column 7: canceled at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:264) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) ... 56 more [2022-03-20 07:43:32,989 INFO L158 Benchmark]: Toolchain (without parser) took 571858.96ms. Allocated memory was 183.5MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 125.9MB in the beginning and 2.7GB in the end (delta: -2.6GB). Peak memory consumption was 6.7GB. Max. memory is 8.0GB. [2022-03-20 07:43:32,989 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 07:43:32,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.13ms. Allocated memory was 183.5MB in the beginning and 261.1MB in the end (delta: 77.6MB). Free memory was 125.7MB in the beginning and 212.8MB in the end (delta: -87.2MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-03-20 07:43:32,989 INFO L158 Benchmark]: Boogie Preprocessor took 122.03ms. Allocated memory is still 261.1MB. Free memory was 212.8MB in the beginning and 205.3MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-20 07:43:32,989 INFO L158 Benchmark]: RCFGBuilder took 1229.14ms. Allocated memory is still 261.1MB. Free memory was 205.3MB in the beginning and 176.7MB in the end (delta: 28.6MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. [2022-03-20 07:43:32,989 INFO L158 Benchmark]: IcfgTransformer took 50.74ms. Allocated memory is still 261.1MB. Free memory was 176.7MB in the beginning and 170.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-20 07:43:32,989 INFO L158 Benchmark]: TraceAbstraction took 570008.66ms. Allocated memory was 261.1MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 170.4MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 6.7GB. Max. memory is 8.0GB. [2022-03-20 07:43:32,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 442.13ms. Allocated memory was 183.5MB in the beginning and 261.1MB in the end (delta: 77.6MB). Free memory was 125.7MB in the beginning and 212.8MB in the end (delta: -87.2MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 122.03ms. Allocated memory is still 261.1MB. Free memory was 212.8MB in the beginning and 205.3MB in the end (delta: 7.6MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1229.14ms. Allocated memory is still 261.1MB. Free memory was 205.3MB in the beginning and 176.7MB in the end (delta: 28.6MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. * IcfgTransformer took 50.74ms. Allocated memory is still 261.1MB. Free memory was 176.7MB in the beginning and 170.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 570008.66ms. Allocated memory was 261.1MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 170.4MB in the beginning and 2.7GB in the end (delta: -2.5GB). Peak memory consumption was 6.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 519139 column 7: canceled de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 519139 column 7: canceled: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:186) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-20 07:43:33,196 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-03-20 07:43:33,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...